xl4-b-op-man

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Contents

IntroductionFeaturesOverview and Statistics

Technical SpecificationBlock DiagramsRear Panel

Midas XL402 Input PodMidas XL401 Input ModuleMidas XL405 Stereo Input PodMidas XL404 Stereo Input ModuleMidas XL403 Input VCA Fader Midas XL414 Group Module

Midas XL412 Group PodMidas XL413 Grand Master A VCA Fader Midas XL421 Master ModuleMidas XL422 Master PodMidas XL431 Communications ModuleMidas XL441 Matrix ModuleMidas XL443 Automation Central Control

MIDAS XL4

BROADCAST CONSOLE

13

13

2125

7

9

15

19

29

333841

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XL4 Introduction

The XL4 is the pinnacle in the current range of Midas consoles. Designed around the classichigh quality associated with analogue circuitry which was proven with the XL3 Live Performanceand Theatre console. The requirements associated with the broadcast environment was designedinto the original XL4 specification. These include, moving faders on all 48 Inputs and 12 VCA’sincluding remote machine starts, instant access to AFL/PFL, Snapshot automation to include audiofollow video, direct outputs on each input, 16 Mic/Line level returns with VCA routing for totalcontrol over effects and ambient microphones as well as full communications module.

Acknowledgments

Thank you to:

Gottfried Duren-FisgusChristian Gobbel

from Sono Studiotechnik

Jean Pascal Lefortfrom Visual Technology

Phillipe Monteau

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Masters & CommsModules

20 x 8Matrix

24 InputChannels

Automation package capable of memorising:audio, VCA,

mute group routing,status of all input channel switches,

plus: midi, smpte, RS-232 ports

2 Grand Masters

16 mic/linelevel returns

10 VCA sub groupson moving faders

24 Input channels each withdirect output, 4band parametrice/q, 16 mono aux (post panpot)

8 stereo groups and stereo masters

16 Audio Sub Groups

Aux Send MastersInput Pots

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Midas XL4 Features

48 Mic Inputs.

Direct Outputs.

16 audio sub groups.

Line inputs.

Equaliser.

Inserts.

Input metering.

Audio busses.

VCA and mute busses.

The XL4 features a new mic amplifier which further improves on the XL3 design giving increased

gain range and lower distortion whilst retaining the XL3's constant HF bandwidth topology whichassures excellent amplifiers stability, RF rejection and noise performance at all gains.

Every input module is fitted with a direct output as standard with its own level control and front panel switching which selects the source from post fader, pre fader or pre insert and equaliser.

The 16 main audio groups can be assigned to any of the 8 automute groups and to VCA control

from any combination of the 2 motorised grand master faders. A safe switch is again included for each group. The input for the groups is normally derived from the 16 group busses but for monitor applications the fader change over routes the 16 mono aux busses to the group faders.

A separate Hi Z line input with its own dedicated gain control is incorporated which is ideal for playback of recorded material. Global change over from mic (record) to line (playback) is easy because it is under automation control.

The sonic performance of the legendary XL3 equaliser is maintained including the full parametricmid's and traditional Midas bass and treble shelving responses. In addition the treble and basssections now have an extended frequency range and are switchable to full parametric operation.

Each channel has a half normalised fully balanced insert send and return point which can beswitched in or out from the front panel and set as either pre or post equaliser.

These peak reading meters cover a 60dB range in 3dB steps and can be switched globally tomonitor pre fader signals or pre insert and equaliser signals.

Each channel can be routed to any combination of 42 audio busses comprising of 16 mono aux'es, 8stereo aux'es, 16 stereo groups and 2 stereo masters. All this is switchable on the module front

panel but also via the automation control.

Each channel can be controlled by any combination of the 10 motorised VCA master faders and 8mute masters. Assignment of these busses is again switchable on the module front panel or by theautomation control. A safe switch disconnects the channel from all mute groups and an isolateswitch removes the channel from all VCA control.

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Group aux inputs.

Master.

Matrix.

Output meters.

Automutes.

10 input VCA faders.

Automation.

An additional 16 inputs with treble and bass equalisation can be routed directly to the groups or viaa pan to the masters mix and can be further controlled by assignment to any of the 10 VCA masters.

The stereo master module provides the main left and right console outputs plus 4 more recordoutputs and a mono output. A solo to master facility is incorporated on the left, right and monooutputs to aid the engineer at sound checks.

As standard the 8 matrix outputs derive their signals from the 16 audio groups, left and rightmasters creating a 18 X 8 matrix. The module also houses the stereo aux masters which have their own outputs at all times but which can be routed directly into the matrix giving an additional 48 X8 matrix sourcing direct from the input channels.

28 peak reading meters (each covering a 60dB range in 3dB steps) are used to monitor all the mainoutputs i.e. 16 groups, 8 matrix, 2 masters and 2 local outputs. They and can be switched globallyto monitor pre fader or post fader signals and can also be used to monitor the 24 aux outputs.

The 8 automute masters can be assigned to any input or audio group and act on pre fader and postfader signals. Apart from assignment the operation of these mutes is entirely independent of theautomation system.

10 motorised VCA master faders control the channel and aux inputs whilst a further 2 VCA grandmaster faders control the audio groups. Each VCA master has a solo switch which gives theengineer an opportunity to monitor the signals within the VCA subgroup. Also incorporated is aVCA mute which act on post fader signals only and effectively adds a further 12 automute scenes tothe existing dedicated automutes.

The automation system can store and recall up to 2000 scenes. All channel routing and major functions are automated as well as all major output mutes. The 12 motorised VCA master fadersgive dynamic control of signal levels within the console and all automation information can beexported or imported in a variety of different mediums for storage or console and system linking.

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XL4 Specification Overview and Statistics.

1. The XL4 is a 45 buss console with an additional 18 X 8 output matrix. The busses are asfollows:-

16 mono aux = 1616 audio sub groups = 164 stereo aux = 81 stereo master = 21 stereo AFL = 21 mono PFL = 1TOTAL = 45

2. The XL4 has 8 automute sub groups, 10 input channel VCA sub groups which include VCA subgroup muting and 2 grand master VCA sub groups with VCA sub group muting.

3. The XL4 has 48 input channels with separate line and mic inputs plus an additional 16 aux linereturns.

4. The XL4 has a total XLR input count of 171 as follows:-

48 channel line inputs48 channel mic inputs24 aux bus inject inputs16 audio group bus inject inputs

16 aux line returns inputs8 matrix bus inject inputs3 solo bus inject inputs2 master bus inject inputs1 comms mic input ( headset )1 comms input ( and output )1 talk mic input1 talk bus inject input1 midi input

5. The XL4 has a total XLR output count of 111 as follows:-

48 input channel direct outputs24 aux outputs16 audio group outputs8 matrix outputs4 record outputs3 master outputs3 solo outputs2 local outputs2 midi outputs

1 talk output

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6. The XL4 has a total bantam jack field count of 158 as follows:-

56 input channel insert sends ( 8 spare for stereo module up grades )56 input channel insert returns ( 8 spare for stereo module up grades )16 audio group insert sends

16 audio group insert returns8 matrix insert sends8 matrix returns8 parallel links ( 2 sets of 4 )3 master insert sends3 master insert returns

7. The XL4 has 12 motorised moving faders for the VCA masters.

8. The XL4 has a total of 2539 automated switch functions as follows:-

960 input channel aux send on off switches480 input channel VCA sub group assign switches384 input channel audio sub group assign switches384 input channel mute sub group assign switches48 input channel EQ on off switches48 input channel stereo master on off switches48 input channel phase switches48 input channel insert on off switches48 input channel mic line switches48 input channel mute switches16 audio sub group mute switches16 aux line return mute switches8 matrix mute switches3 master mute switches

9. The XL4 has a total of 77 peak program meters with 20 LED segments each and monitoring 282signal points within the console.

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XL4 Technical Specification.

Input Impedance Mic 2K Balanced

Line 20K Balanced

Input Gain Mic Continuously variable from( all faders at 0dB ) + 15dB to + 70dB

Mic + Pad Continuously variable from- 5dB to + 50dB

Channel Continuously variable fromLine Input - 20dB to + 20dB

All other Line Inputs 0dB

Maximum Input Level Mic + 6dBu

Mic + Pad + 26dBu

Channel Line inputs + 26dBu

All other Line Inputs + 21dBu

CMR at 1KHz Mic ( gain + 60dB ) > 70dB

Mic + Pad( gain + 40dB ) > 50dB

Line > 60dB

Frequency Response( 20 to 20KHz ) Mic to Mix

( gain + 60dB ) + 0dB to - 1dB

Line to Mix + 0dB to - 1dB

Noise ( 20 to 20KHz ) Mic EIN ref. 150 Ohms( gain + 60dB ) - 129dBu

Line EIN ref. 150 Ohms

( gain + 10dB ) - 100dBu

System Noise Summing Noise( 20 to 20KHz ) ( 12 channels routed

with faders down ) - 86dB

Line to Mix Noise( 12 channels routedat 0dB, pan centre ) - 81dB

Summing Noise ( 48 channels routed

with faders down ) - 80dB

Line to Mix Noise( 48 channels routedat 0dB, pan centre ) - 75dB

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Distortion at 1KHz Mic to Mix ( + 60dBgain, 0dBu output ) < 0.03%

Line to Mix ( 0dBu ) < 0.03%

Crosstalk at 1 KHz Channel to Channel < - 100dB

Mix to Mix < - 90dB

Channel to Mix < - 90dB

Maximum Fader attenuation > 90dB

Output Impedance All Line Outputs 50 Ohms Balanced Source todrive > 600 Ohms

Headphones To drive > 8 Ohms Unbalanced

Comms ( Bi - directional ) 600 Ohms Nominal Unbalanced

Maximum Output Level All Line Outputs + 21dBu

Headphones + 21dBu ( 8W into 8 Ohms )

Comms ( Bi -directional ) - 10dBu

Nominal Signal Level Mic - 70dBu to + 5dBu

ChannelLine Inputs - 20dBu to + 5dBu

All other LineInputs and outputs 0dBu

Headphones + 10dBu

Comms - 20dBu

Comms and Talk Mic - 50dBu to - 20dBu ( auto gain )

Headroom at all stages Comms, Talk and Headphone > 10dB

All other signals > 20dB

Metering Type 20 led peak reading

Range - 36dBu to + 21dBu

Colour Green Up to + 9dBu Normal signal

Colour Yellow + 12dBu to + 15dBu High signal

Colour Red Over + 18dBu Signal Too High

Quantity 77 ( Monitoring all mainInputs and outputs )

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Equaliser Low pass slope 12dB / Oct.

Low pass frequency Continuously variable- 3dB point from 1K to 40K

Hi pass slope 12dB / Oct.

Hi pass frequency Continuously variable

3dB point from 10Hz to 400Hz

Treble Gain Continuously variable+ 15 dB to - 15 dBCentre detent = 0dB

Treble Shelving Freq. Continuously variable- 3dB point from 1K to 20K

Treble Bell Freq. Continuously variablecentre from 1K to 20K

Treble Bell Bandwidth Continuously variable0.1 Oct. to 2 Oct.Centre detent = 0.5 Oct.

Hi Mid Gain Continuously variable+ 15 dB to - 15 dBCentre detent = 0dB

Hi Mid Freq. Continuously variablecentre from 400Hz to 8K

Hi Mid Bandwidth Continuously variable0.1 Oct. to 2 Oct.Centre detent = 0.5 Oct.

Lo Mid Gain Continuously variable+ 15 dB to - 15 dBCentre detent = 0dB

Lo Mid Freq. Continuously variablecentre from 100Hz to 2K

Lo Mid Bandwidth Continuously variable0.1 Oct. to 2 Oct.Centre detent = 0.5 Oct.

Bass Gain Continuously variable+ 15 dB to - 15 dBCentre detent = 0dB

Bass Shelving Freq. Continuously variable3dB point from 20Hz to 400Hz

Bass Bell Freq. Continuously variablecentre from 20Hz to 400Hz

Bass Bell Bandwidth Continuously variable0.1 Oct. to 2 Oct.Centre detent = 0.5 Oct.

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XL401 INPUT MODULE

BLOCK DIAGRAM

XL402 INPUT POD

BLOCK DIAGRAM

XL403 INPUT FADER MODULE

BLOCK DIAGRAM

INSERT POINT

RETURNSEND

AUXILIARY

SEND

1 OF 16

STEREO

AUXILIARY

SEND

1 OF 4

STEREO

MASTERS

SEND

STEREO

GROUP

SEND

1 OF 8

SOLO LEFT

SOLO

SWITCH

VCA FADER

SOLO RIGHT

PRE FADER

LISTEN

FOUR BAND FULLY PARAMETRIC EQUALISER

DIRECT

OUTPUT

TO POD

INPUT

FROM POD

PRE FADER

SIGNAL

TO POD

AUTOMATION

TO POD

TEST

INPUT

(SERVICE

USE ONLY)

prepre ins. & eq.

direct o/p

0

+10

1515

6 6

0

hi-mid

width

+/-20.1

10.3

1515

6 6

0

treble

width

+/-20.1

10.3

1515

6 6

0

bass

width

+/-20.1

10.3

1515

6 6

0

lo-mid

width

+/-20.1

10.3

bell bellfreq1k

3k 8k

20k freq400

1k 3k

8k freq100

300 800

2k freq

20

60 160

400

+

-

+

_

pre

insert

eq

EQ

panl r

c

pre fade

ON

+6aux 1

pre

ON

st aux 1&2

0

+6

ST

INS

mute

BALANCINGOPTION

TRANSFORMER

BALANCINGOPTION

TRANSFORMER

BALANCINGOPTION

TRANSFORMER

+70

+25 +35

+15mic

/O48V

-20

00

+20-20

30 100

10 400hi-pass

+21+18+15+12+9+6+3

0-3-6-9-12

-15-18-21-24-27-30-33-36

DIR

ECT

PHANTOM GAIN HI-PASS

FILTER

40k

10k

1k

3k

lo-pass

LO-PASS

FILTER

line

MIC / LINE

SELECT PHASEREVERSE

PEAK

-

+

-

1

2

3

4

5

6

7

8

9

10

groupassignswitches

1&2

3&4

5&6

7&8

9&10

11&12

13&14

15&16

safe

solo

iso

5

5

0

VCA

GROUP

1

2

3

4

5

6

7

8

9

10

MUTE

GROUP

1

2

3

4

5

6

7

8 AUDIOGROUP

1&2

3&4

5&6

7&8

9&10

11&12

13&14

15&16

µP AUTOMATION PARALLEL BUS

MUTE

AUTOMATION

ASSIGN SWITCHES

MAY FUNCTION IN

ANY ONE OF THREE

WAYS AS SHOWN.

FUNCTION IS

DEPENDANT ON

ASSIGN MASTER

SWITCHES. SOLO

CLEAR

METER PRE

FADER START RELAY

= ANALOGUE SIGNALS

= D.C. SIGNALS

= AUTOMATION SIGNALS

SIGNAL PATH KEY

XL4 INPUT BLOCK DIAGRAM

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SOLO

XL441 MATRIX MODULE

BLOCK DIAGRAM

STEREO AUX

LEFT

OUTPUT

METER PRE LEFT

SOLO LEFT

METER POST LEFT

METER POST RIGHT

METER PRE RIGHT

+

-

METER PRE

IN METER

BRIDGE

STEREO AUX

LEFT

INJECT

STEREO AUX

RIGHT

INJECT

STEREO AUX

BUS LEFT

STEREO AUX

BUS RIGHT

NOISE REF BUS

TALK TO AUX

∑ ∑

∑∑

STEREO AUX RIGHT

OUTPUT +

-

0

+10

stereoaux

master oo

MUTE

MATRIX

LEFTINJECT

METER PRE

RIGHT

METER POST

RIGHT

SOLO RIGHT

PFL

SOLO

LOGIC

INS

INSERT POINT

RETURNSEND

+

-

+

_

∑

∑

∑

VCA

TALK

mute

0

masters left+6 oo

0

masters right+6 oo

global pre

ON

5

5

0

TALK TO MATRIX

PREPOST

MASTER

LEFT

MASTER

RIGHT

GROUP 1

(1 OF 16

SHOWN)

MATRIX

LEFT

OUTPUT

+

-

0

+6mix 1

oo

solo

MATRIX

INJECT

RIGHT

METER PRE LEFT

METER POST LEFT

AUTOMATION

INS

INSERT POINT

RETURNSEND

+

-

+

_

∑

∑

VCA

TALK

mute

0

masters left+6 oo

0

masters right+6 oo

global pre

ON

5

5

0

TALK TO MATRIX

PREPOST

MASTER

LEFT

MASTERRIGHT

GROUP 1

(1 OF 16

SHOWN)

MATRIX

RIGHT

OUTPUT

+

-

0

+6mix 1

oo

solo

MTX

STEREO AUX

TO MATRIX

+21++18++15++12++9++6++3+

0-3--6--9-

-12-

-15--18--21--24--27--30--33--36-

change over

matrix

STEREO AUXILIARY SECTION

XL4 MATRIX MODULE BLOCK DIAGRAM

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M E T E R

P R E

S O L O

O N

S O L O

L E F T

S O L O

R I G H T

M A S T E R

L E F T

I N J E C T

M A S T E R

R I G H T

I N J E C T

T A L K T O M A S T E R L

T A L K T O M A S T E R M

M A S T E R A U X

B U S L E F T

M A S T E R A U X

B U S R I G H T

M E T E R P R E

R

E C O R D M E T E R S R E A D S H I G H E S T

L E V E L O F L E F T O R R I G H T

M U T E A L L

S O L O I / P

P F L

A F L L E F T

A F L R I G H T

H E A D P H O N E S L E F T

H E A D P H O N E S R I G H T

M A S T E R

L E F T

O U T P U T

M A S T E R

M O N O

O U T P U T

M A S T E R

R I G H T

O U T P U T

R E C O R D 1

L E F T

O U T P U T

R E C O R D 1

R I G H T

O U T P U T

R E C O R D 2

L E F T T

O U T P U T

R E C O R D 2

R I G H T

O U T P U T

M A T R I X L E F T

M A T R I X R I G H T

A U T O M A T I O N

m a s t e r s

m o

n o

M A S T E R

B U S L E F T

0 V

O L T S

N O I S E R E F B U S

( F O R F I E L D

R E J E C T I O N )

M A S T E R

B U S R I G H T

+ 1 8

+ 1 5

+ 1 2

+ 9

+ 6 + 3 0 - 3 - 6 - 9

I N S

+ 2 1

+ 1 8

+ 1 5

+ 1 2

+ 9

+ 6

+ 3 0 - 3 - 6 - 9

- 1 2

- 1 5

- 1 8

- 2 1

- 2 4

- 2 7

- 3 0

- 3 3

- 3 6

I N S

I N S

5 5 0

l

c

r

b a l a n c e

I N S E R T P O I N

T

R E T U R N

S E N D

+ -

+ _

+ - + - + - + - + - + - + -

I N S E R T P O I N

T

R E T U R N

S E N D

+ -

+ _

I N S E R T P O I N

T

R E T U R N

S E N D

+ -

+ _

∑ ∑

∑ ∑ ∑

∑

V C A

V C A

V C A

V C A

∑

S O L O

m u t e a l l

s o l o i n p l a c e

+ 1 8

+ 1 5

+ 1 2

+ 9

+ 6 + 3 0 - 3 - 6 - 9

0 + 1 0

r e c o r d

10

+ 1 0

r e c o r d

2

O N

m a t r i x

s e n d

p r e

a u x i / p m u t e s

5 5 0

+ 2 1

+ 1 8

+ 1 5

+ 1 2

+ 9

+ 6

+ 3 0 - 3 - 6 - 9

- 1 2

- 1 5

- 1 8

- 2 1

- 2 4

- 2 7

- 3 0

- 3 3

- 3 6

I N M E T E R

B R I D G E

+ 2 1

+ 1 8

+ 1 5

+ 1 2

+ 9

+ 6

+ 3 0 - 3 - 6 - 9

- 1 2

- 1 5

- 1 8

- 2 1

- 2 4

- 2 7

- 3 0

- 3 3

- 3 6

XL4 MASTERS MODULE BLOCK DIAGRAM

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+

-

+

-

+

-

-

PHASEREVERSE

L/R REVERSE R TO BOTH

L OFF

R OFF

L TO BOTHMONO

DIM

INTERNAL

LEVEL

EXTERNALLEVEL

EXTERNAL

OSC / TALK MIC C/O

+10

0

level

+10

0

level

C/O

AUTO

MUTE 5

AUTO

MUTE 4

AUTO

MUTE 3

AUTO

MUTE 2

AUTO

MUTE 1

AUTO

MUTE 8

AUTO

MUTE 7

AUTO

MUTE 6

+V

SOLO

SOLORESET ADD

MODE

SOLO SENSE

SOLO RESET

TALK

TALK TO AUXES

TALK TALK TO MONO

TALK TALK TO MASTERS

TALK TALK TO MATRIX

TALK TALK TO GROUPS

+

-

TALK

TALK TO EXTERNAL

+10

0

level

+10

0

level

EXTERNAL

DIM

C/O

C/O+V

GLOBALMETERING

PRE

2 TRACK RETURN

SOLO TO

MONITORS

ENABLE

PFL TO

MONITORS

ENABLE

PFL

BUS

COMMS LINK TO TALK

INTERCOM

2 TRACK

INPUT

LEFT

2 TRACK

INPUT

RIGHT

MASTER

BUS

LEFT

MASTER

BUSRIGHT

SOLO

BUS

RIGHT

SOLOI / P

RIGHT

SOLOBUS

LEFT

SOLO

I / P

LEFT

INTERNAL

TALK ON

EXTERNAL

TALK ON

PFL SPEAKER

O/P

+

-

SOLO O/PLEFT

+

-

METERO/P RIGHT

+

-

OSC O/P

+

-

METERO/P LEFT

+

-

PFL BUS

O/P

+

-

SOLO O/PRIGHT

SOLO O/P 'A'

SOLO O/P 'B'

PFL O/P

LEVEL

SOLO O/P

LEVEL

A/BSPEAKERS

PFL INPUT

LEVEL

+10

0

level

+10

0

level

C/OHEADPHONES

HEADPHONE

LEVEL

HEADPHONESOURCE

+10

0

level

OSC

1k

freq20

60 160

400

OSCILLATOR

PINK

PINK NOISE

OSC

LEVEL

+10

0

level

+10

0

level

+10

0

level

EXTERNAL

INPUT 1

EXTERNAL

INPUT 2

EXTERNAL 1LEVEL

EXTERNAL 2

LEVEL

TALK

EXTERNAL

TALK

MIC

ON

ON ON

COMMS

CANCELATION

CALL

COMMSON

COMMS

LEVEL

COMMS

HEAD

SET

ON

LINK

+10

0

level

PFL I/P

+21+18+15+12+9+6+3

0-3-6-9

-12-15-18-21-24

-27-30-33-36

+21+18+15+12+9+6+3

0-3-6-9-12-15-18-21-24

-27-30-33-36

C/O

talkint

exttalk

XL4 COMMS MODULE BLOCK DIAGRAM

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INPUTS1 - 8

MASTERSLINKS

MATRIX1 - 8

STEREOI NPUTSRIGHT

41- 48

STEREOINPUTSRIGHT

17- 24

GROUPS9 - 16

GROUPS1 - 8

INPUTS9 - 16

INPUTS25 - 32

INPUTS41 - 48

INPUTS33 - 40

INPUTS17 - 24

INPUTS

1 - 8

MASTERSLINKS

MATRIX1 - 8

GROUPS9 - 16

GROUPS1 - 8

INPUTS

9 - 16

INPUTS

25 - 32

INPUTS

41 - 48

INPUTS

33 - 40

INPUTS

17 - 24

XL4

Edac Mono Inputs Panel

XL4

CON 1 CON 2 CON 3 CON 4 CON 5 CON 6 CON 7 CON 8 CON 9 CON 10 CON 11 CON 12

INPUTS

1 - 16

MATRIX &

MASTERS

GROUPS

1 - 16

INPUTS

33 - 48

INPUTS

17 - 32

XL4

CON 1 CON 2 CON 4 CON 5 CON 6

Harting Mono Inputs Panel

Edac Mono & Stereo Inputs Panel

Using Siemens remote all connections

Typical All Connections Multi-Pin

Typical Remote Patch Bay Option Panels

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L e f t R e a r V i e w

8

7

6

5

4

3

2

1

8

7

6

5

4

3

2

1

8

7

6

5

4

3

2

1

8

7

6

5

4

3

2

1

8

7

6

5

4

3

2

1

L O C A L A

L O C A L B

S O L O R

P F L

S O L O L

M A S T E R R

M A S T E R M

M A S T E R L

M A S T E R B U S O U T P U T S

M O N I T O R I N G B U S O U T P U T S

M A T R I X O U T P U T S

G R O U P

O U T P U T S

G R O U P B U S I N P U T S

A U X I L I A R Y

L I N E I N P U T S

M A T R I X B U S I N P U T S

1 6

1 5

1 4

1 3

1 2

1 1

1 0

9

1 6

1 5

1 4

1 3

1 2

1 1

1 0

9

1 6

1 5

1 4

1 3

1 2

1 1

1 0

9

R i g h t R e a r V i e w

S t e r e o

I n p u t P o d

R e a r V i e w

M o n o

I n p u t P o d

R e a r V i e w

8

7

6

5

4

3

2

1

8

7

6

5

4

3

2

1

8

7

6

5

4

3

2

1

8

7

6

5

4

3

2

1

M I D I T H R U

M I D I O U T

M I D I I N

S P A R E

O U T P U T

I N P U T

C O M M S

S O L O R

P F L

S O L O L

M A S T E R

R

M A S T E R L

M O N I T O R I N G B U S I N P U T S

A U T O M A T I O N

S T E R E O A U X I L I A R Y O U T P U T S

A U X I L I A R Y

S E N D O U T P U T S

A U X I L I A R Y S

E N D B U S I N P U T S

M A

S T E R B U S I N P U T S

S T E R E O A U X I L I A R Y B U S I N P U T S

1 6

1 5

1 4

1 3

1 2

1 1

1 0

9

1 6

1 5

1 4

1 3

1 2

1 1

1 0

9

R E C O R D 2 R

R E C O R D 2 L

R E C O R D 1 R

R E C O R D 1 L

T A L K

A N C I L L A R Y M A S T E R O U T P U T S

C

e n t e r R e a r V i e w

P O W E R

S U P P L Y

T E S T

I N P U T

D I M

L A M P S

I N O U T

T H R U

M I D I

R S 2 3 2 - 1

R S 2 3 2 - 2

D C L I N K

I N P U T

D C L I N K

O U T P U T

S O L O L O G I C

I N P U T

S O L O L O G I C

O U T P U T

M I D A S X L 4 0 2

I N P U T

I N P U T

M I C R O P H O N E

L I N E

D I R E C T

O U T P U T

M I D A S

X L 4 0 5

I N P U T

I N P U T

L E F T

R I G

H T

L E F T D I R E C T

R I G H T D

I R E C T

O U T P U T

O U T P U T

O S C O U T

P U T

2 T R A C K

I / P L

2 T R A C K

I / P R

E X T E R N A L

I / P 1

E X T E R N A L

I / P 2

D I M

I / P

P F L S P E A K E R O / P

M E T E R

O / P L

M E T E R

O / P R

R E A R P A N E L D E T A I L

7/16/2019 xl4-b-op-man


7/16/2019 xl4-b-op-man


MIDAS

XL402

+70

+25 +35

+15mic

30 100

10 400

40k

10k

1k

3k

0

+20-20

line

hi-pass

lo-pass

+21+18+15+12+9+6+3

0-3-6

-9-12-15-18-21-24-27-30-33-36

/O

48V

-20

1

MIDAS XL402

Input Pod

FUNCTION: To control microphone and line input levels with phantom and phase reversefacility plus incorporating high and low pass filters.

7/16/2019 xl4-b-op-man


MIDAS

XL402

+70

+25 +35

+15

mic

30 100

10 400

40k

10k

1k

3k

0

+20-20

line

hi-pass

lo-pass

+21+18+15+12+9+6+3

0-3-6

-9-12-15-18-21-24-27-30-33-36

/O

48V

-20 The MIC control givescontinuous adjustment of themic amp gain from + 15dB to +70dB.

The LINE control givescontinuous adjustment of theline amp gain from - 20dB to +20dB.

The LINE switch connects theline input to the signal path anddisconnects the mic amplifier.This switch is under automationcontrol.

The LO PASS filter control actson the mic input only and iscontinuously adjustable from1K to 40K. When the filter isset to 40K there is no loss at20K.

The HI PASS filter control acts

on the mic input only and iscontinuously adjustable from10Hz to 400Hz. When the filter is set to 10Hz there is no loss at20Hz.

The PHASE switch activatesa 180 degrees phase changeon both the mic and lineinputs. This switch is under automation control.

The METER monitors the peak signal level of the input

channel pre fader. When theGLOBAL METER CHANGEOVER switch on theCOMMS module is activatedthe meter monitors the micamp or line amp output(which ever is in use ).

The 48V switch connects 48volt phantom power to themic input suitable for acondenser microphone or DI

box.

The PAD switch gives 20dBof attenuation to the micsignal and will allow theconnection of high outputmicrophones or line levelsignals. If the mic amp istransformer coupled ( option )the pad greatly reduces therisk of saturation at very lowfrequencies.

2

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freqbell

freq

bellfreq

1515

6 6

0

hi-mid

width

+/-20.1

10.3

1515

6 6

0

treble

width

+/-20.1

10.3

1515

6 6

0

lo-mid

width

+/-20.1

10.3

1515

6 6

0

bass

width

+/-20.1

10.3

freqpre

insert

eq

pre fade

pre ins. & eq.

MIDAS XL401

direct o/p

0

+10

input

1k

3k 8k

20k

400

1k 3k

8k

100

300 800

2k

20

60 160

400

EQ

The DIRECT output controlgives continuous adjustment of the direct output level from +10dB to off. The output isderived from the input channel

post fader signal.The PRE FADE switch reconfigures the direct output toderive signal from the inputchannel pre fader.

The PRE INS & EQ switch reconfigures the direct output toderive signal from the inputchannel pre insert and

The TREBLE ( dual concentrictop ) control gives continuousadjustment of boost and cutfrom + 15dB to - 15dB with a0dB centre detent.

The treble WIDTH ( dualconcentric bottom ) controlgives continuous adjustmentof bandwidth from 0.1 to 2octaves with a 0.5 octavecentre detent. This onlyoperates when the BELLswitch is activated.

The treble FREQ control givescontinuous adjustment of thefrequency range that the trebleequaliser acts on from 1K to20K.The treble BELL switch

converts the treble equaliser

from traditional MIDASshelving response to full

parametric operation.

The HI MID ( dual concentrictop ) control gives continuousadjustment of boost and cutfrom + 15dB to - 15dB with a0dB centre detent.

The hi mid WIDTH ( dualconcentric bottom ) controlgives continuous adjustment of

bandwidth from 0.1 to 2 octaves

The hi mid FREQ control givescontinuous adjustment of thefrequency range that the hi midequaliser acts on from 400Hz to

8K.

The EQ switch connects theequaliser in the input channel

signal path and is under automation control.

The LO MID ( dualconcentric top ) control givescontinuous cut from + 15dBto - 15dB with a 0dB centredetent.

The lo mid WIDTH ( dualconcentric bottom ) controlgives continuous adjustment of

bandwidth from 0.1 to 2 octaveswith a 0.5 octave centre detent.

The lo mid FREQ control givescontinuous adjustment of thefrequency range that the lo mid

equaliser acts on from 100Hz to2K.

The INSERT PRE EQarranges the input channelsignal to pass through the

insert point before theequaliser when activated andafter the equaliser when notactivated.

The BASS ( dual concentrictop ) control gives continuousadjustment of boost and cutfrom + 15dB to - 15dB with a0dB centre detent.

The bass WIDTH ( dualconcentric bottom ) controlgives continuous adjustment of

bandwidth from 0.1 to 2 octaveswith a 0.5 octave centre detent.This only operates when theBELL switch is activated.

The bass FREQ control givescontinuous adjustment of thefrequency range that the bassequaliser acts on from 20Hz to400Hz.

The bass BELL switchconverts the bass equaliser from traditional MIDASshelving response to full

parametric operation.

4

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The mono AUX controls ( 1 to16 ) give continuous adjustmentof the level sent from the inputchannel to the aux busses. Thelevel adjustment is from + 6dBto off.

The mono aux ON switches(1 to 16) connect signals fromthe input channel to the monoaux busses and are under automation control.

The mono aux PRE switcheschange the signal sent to themono aux busses from postfader to pre fader.

pre

0

+6

ON

pre

0

+6

ON

pre

0

+6

ON

pre

0

+6

ON

pre

0

+6

ON

pre

0

+6

ON

pre

0

+6

ON

pre

0

+6

ON

pre

0

+6

ON

pre

0

+6

ON

pre

0

+6

ON

+6

aux 3

aux 4

aux 5

aux 6

aux 7

aux 8

aux 9

aux10

aux11

aux12

pre

0ON

aux 1

aux 2

5

1 - 16

7/16/2019 xl4-b-op-man


MIDAS XL401

panl r

c

mute

pre

pre

pre

pre

st aux 1&2

st aux 3&4

st aux 5&6

st aux 7&8st aux 7&8

0

+6

0

+6

0

+6

0

+6

ON

ON

ON

ON

INS

ST

The stereo aux ON switches

(1-4) connect signals from theinput channel to the stereo aux

busses and are under automation control.

The stereo aux PRE switches(1-4) change the signal sent tothe stereo aux busses from postfader to pre fader whilstretaining the post pan stereo

image.

The PAN control places theinput channel within a stereomix and has a constant power law i.e. - 3dB at the centre

position.The INS switch connects theinput insert return signal to theinput channel before or after the equaliser (see insert pre eqswitch on page 4) and is under automation control.

The ST switch connects theinput channel post fader signalto the stereo master buss viathe pan control and is under automation control.

The MUTE switch mutes theinput channel at all pointsexcept the insert send and preinsert / eq direct output. This

switch is under automation andauto mute group control.

The ST AUX controls (1 to 8)

give continuous adjustment of the level sent from the inputchannel (post pan) to the stereoaux busses. The leveladjustment is from + 6dB tooff.

ST AUX OPTION:- Consolescan be ordered with dualconcentric controls to giveindependent adjustment of thelevels sent from the input

channel (pre pan) to the stereo busses. The top control givesadjustment of left signals from+6dB to off while the bottomcontrol adjusts the right signallevels.

6

7/16/2019 xl4-b-op-man


MIDAS

XL405

+70

+25 +35

+15mic

30 100

10 400

rl

C

hi-pass

balance

left

right

+18++15++12++9++6++3+

0-3--6--9-

-25-

/O

/O

48V

-25

MIDAS XL405

Stereo InputPod

7

7/16/2019 xl4-b-op-man


MIDAS

XL405

+70

+25 +35

+15

mic

30 100

10 400

rl

C

hi-pass

balance

left

right

+18++15++12++9++6++3+

0-3--6-

-9--25-

/O

/O

48V

-25The MIC control givescontinuous adjustment of leftand right mic amp gains from+15dB to +70dB.

The PAD switch gives 25dB of

attenuation to the mic signalsand will allow the connectionof high output microphones or line signals. If the mic ampsare transformer coupled(option) the pad greatlyreduces the risk of saturation atvery low frequencies.

The 48V switch connects 48volt phantom power to both

mic inputs as required for condenser microphones etc.

The METERS monitors the peak signal level of the leftand right input channels prefader. When the GLOBALMETER CHANGE OVER switch on the COMMSmodule is activated the metersmonitor the left and right

mic/line amp outputs.

The left PHASE switchactivates a 180 degrees phasechange on the left mic/lineinput.

The right PHASE switchactivates a 180 degrees phasechange on the right mic/lineinput.

The BALANCE control givescontinuous and reciprocaladjustment of the stereo leftand right signal levels by+10dB to -10dB. This allowsfine adjustment of the left andright signal levels andimaging.

The HI PASS switch connectsthe high pass filter into the leftand right signal path.

The HI PASS filter control is

continuously adjustable from10Hz to 400Hz.

The stereo input pod provides a left and rightDIRECT OUTPUT which can be internallylinked as pre or post insert/eq.

8

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7/16/2019 xl4-b-op-man


himid

1515

6 6

0

1515

6 6

0

treble

lomid

1515

6 6

bass

MIDAS XL404

stereo input

freq

2k

5k 10k

20k

1515

6 6

0

0

freq

400

1k 3k

8k

width

0.3

0.6 1.3

2

freq

100

300 800

2k

width

0.3

0.6 1.3

2

freq20

50 100

200

EQ

The TREBLE control givescontinuous adjustment of leftand right shelving filters boostand cut from +15dB to -15dBwith a 0dB centre detent.

The treble FREQ controlgives continuousadjustment of the frequencyrange that the trebleequalisers act on from 2K to 20K.The HI MID control gives

continuous adjustment of leftand right boost and cut from+15dB to -15dB with a 0dBcentre detent.

The hi mid FREQ controlgives continuousadjustment of the frequencyrange that the hi midequalisers act on from400Hz to 8K.

The hi mid WIDTH controlgives continuous

adjustment of the filter bandwidths from 0.3 to 2octaves with 1 octave beingthe centre position.

The LO MID control givescontinuous adjustment of leftand right boost and cut from+15dB to -15dB with a 0dBcentre detent.

The lo mid FREQ controlgives continuousadjustment of the frequencyrange that the lo midequalisers act on from100Hz to 2K.

The lo mid WIDTH controlgives continuousadjustment of the filter

bandwidths from 0.3 to 2octaves with 1 octave beingthe centre position.

The EQ switch connects theleft and right equalisers in the

input channel signal paths andis under automation control.

The BASS control givescontinuous adjustment of theleft and right shelving filters

boost and cut from +15dB to -15dB with a 0dB centre detent.

The bass FREQ controlgives continuousadjustment of the frequency

range that the bassequalisers act on from 20Hzto 200Hz.

10

7/16/2019 xl4-b-op-man


aux 3

aux 4

aux 5

aux 6

aux 7

aux 8

aux 9

aux10

aux11

aux12

pre0

+6

ON

pre

0

+6

ON

pre

0

+6

ON

pre

0

+6

ON

pre

0

+6

ON

pre

0

+6

ON

pre

0

+6

ON

pre

0

+6

ON

pre

0

+6

ON

pre

0

+6

ON

pre

0

+6

ON

pre

0

+6

ON

aux 1

aux 2

The mono AUX controls (1 to16) give continuousadjustment of the level sentfrom the input channel to theaux busses. The signal is amono sum of the left and rightsignals and the leveladjustment is from + 6dB tooff.

The mono aux ON switchesconnect signals from the inputchannel to the mono aux


The mono aux PRE switcheschange the signal sent to themono aux busses from postfader to pre fader.

11

7/16/2019 xl4-b-op-man


MIDAS XL404

pan panl lr r

c c

mute

pre

pre

pre

pre

st aux 1&2

st aux 3&4

st aux 5&6

st aux 7&8st aux 7&8

0

+6

0

+6

0

+6

0

+6

ON

ON

ON

ON

INS

ST

The ST AUX controls (1 to 8)give continuous adjustment of the level sent from the inputchannel (post pan) to the stereoaux busses. The leveladjustment is from + 6dB tooff.

The stereo aux ON switchesconnect signals from the inputchannel to the stereo aux


The stereo aux PRE switcheschange the signal sent to thestereo aux busses from postfader to pre fader whilstretaining the post pan stereoimage.

The left and right PANcontrols are used to place the

input channel signals within astereo mix. As well as image

placement, the controls canalso adjust the image widthfrom stereo through mono toreverse stereo (left and rightcrossed over). The controlshave a constant power law i.e.-3dB at the centre position.

The INS switch connects theleft and right input insertreturn signals to the inputchannel and is under automation control.

The ST switch connects theinput channel post fader signals to the stereo master

buss via the pan controls and isunder automation control.

The MUTE switch mutes theinput channel at all pointsexcept the insert send and preinsert/eq direct output. Thisswitch is under automation andauto mute group control.

12

7/16/2019 xl4-b-op-man


solo solo solo solo solo solo solo solo

1 1 1 1 1 1 1 1

2 2 2 2 2 2 2 2

3 3 3 3 3 3 3 3

4 4 4 4 4 4 4 4

5 5 5 5 5 5 5 5

6 6 6 6 6 6 6 6

7 7 7 7 7 7 7 7

8 8 8 8 8 8 8 8

9

10

9

10

9

10

9

10

9

10

9

10

9

10

9

10

group

assignswitches

group

assignswitches

group

assignswitches

group

assignswitches

group

assignswitches

group

assignswitches

group

assignswitches

group

assignswitches

1&2 1&2 1&2 1&2 1&2 1&2 1&2 1&2

3&4 3&4 3&4 3&4 3&4 3&4 3&4 3&4

5&6 5&6 5&6 5&6 5&6 5&6 5&6 5&6

7&8 7&8 7&8 7&8 7&8 7&8 7&8 7&8

9&10 9&10 9&10 9&10 9&10 9&10 9&10 9&10

11&12 11&12 11&12 11&12 11&12 11&12 11&12 11&12

13&14 13&14 13&14 13&14 13&14 13&14 13&14 13&14

15&16 15&16 15&16 15&16 15&16 15&16 15&16 15&16

XL403MIDAS

safe safe safe safe safe safe safe safe

isolate isolate isolate isolate isolate isolate isolate isolate

10

10

5

5

0

20

30

40

50

60dB

10

10

5

5

0

20

30

40

50

60dB

10

10

5

5

0

20

30

40

50

60dB

10

10

5

5

0

20

30

40

50

60dB

10

10

5

5

0

20

30

40

50

60dB

10

10

5

5

0

20

30

40

50

60dB

10

10

5

5

0

20

30

40

50

60dB

10

10

5

5

0

20

30

40

50

60dB

MIDAS XL403Input VCA Fader

13

FUNCTION: Fader control of 48 input levels to stereo bus, audio sub groups and VCA subgroups with solo and mute group assign.

7/16/2019 xl4-b-op-man


solo

1

2

3

4

5

6

7

8

9

10

groupassignswitches

1&2

3&4

5&6

7&8

9&10

11&12

13&14

15&16

MIDAS

safe

isolate

10

10

5

5

0

20

30

40

50

60

dB

The SOLO switch sends theinput channel signal to the PFLmono and AFL stereo busses. If

the switch is pressed for a shorttime it will latch on or off, but,if it is held on for more than 1second the latching is disabledand when the switch is releasedthe channel solo will turn off.

The ISOLATE switchdisconnects the input channelfrom automation scene recall.

Scene storage is still active.

The SAFE switch disconnectsthe input channel mute fromthe 8 auto mute busses.

The GROUP ASSIGNSWITCHES 1 to 10 are under automation control and

perform 3 major functions:-

The VCA INPUT fader givescontinuous adjustment of theinput channel level from +10dB to off.

14

i. They are used to assign theinput channel post fader signal to the 16 AUDIOgroups via the pan control.

ii. They are used to assign theinput channel to the 10 VCAsub groups.

iii. They are used to assignthe input channel to the 8 autoMUTE groups.

The function of theseswitches is globally selected

by pressing the large AUDIO,VCA or MUTE switches onthe AUTOMATIONCENTRAL CONTROL

panel. A fourth large switch

LOCK is used to disable allthe input channel groupassign switches throughoutthe console so as to avoidaccidental operation. It is still

possible to view the switchstatus of all three group typeswhen in this mode.

7/16/2019 xl4-b-op-man


MIDAS XL414Group Module

15

fader fader

C/O C/O

SOLO SOLO

MUTE MUTE

0 0

+10 +10

aux sends

MIDAS

MIDAS

XL414

XL414

9

10

1

2

3

4

5

6

7

8

10

9

1

2

3

4

5

6

7

8

A

B

1

2

3

4

5

6

7

8

SAFE

A

B

1

2

3

4

5

6

7

8

SAFE

ll

cc

r rpan pan

TALK TALK

INS INS

ST ST

mute mute

solo solo

group

auto

mute

groups

auto

mute

groups

v ca

groups

v ca

groups

grand master vca's

10

10

5

5

0

20

30

40

50

60

dB

SOLO SOLO

MUTE MUTE

+48 +48

0 0

+50

+20 +20

+50-30 -30

-15 -15 +15+15

-15 -15

0 0

0 0

+15 +15

ll

cc

r rpan pan

treble

gain

bass

gain

SUB SUB

7/16/2019 xl4-b-op-man


fader fader

C/O C/O

SOLO SOLO

MUTE MUTE

0 0

+10 +10

aux sends

MIDAS XL414

9

10

1

2

3

4

5

6

7

8

10

9

1

2

3

4

5

6

7

8

v ca

gr

oups

v ca

gr

oups

The AUX SEND controls givecontinuous adjustment of themono aux bus output levelsfrom + 10dB to off.

The aux send MUTE switchesmute the aux bus outputs.

The aux send SOLO switchessend mono aux bus signals tothe PFL and AFL busses. If aswitch is pressed for a shorttime it will latch on or off, butif it is held on for more than 1second the latching isdisabled and when the switchis released the solo will turnoff.

The FADER CHANGE

OVER switches swap themono aux busses with theaudio group busses so that theconsole can be used for monitor applications.

The VCA GROUP switchesassign the mic/line returns to

16

AUX SENDS

MIC/LINE RETURNS

7/16/2019 xl4-b-op-man


A

B

1

2

3

4

5

6

7

8

SAFE

A

B

1

2

3

4

5

6

7

8

SAFE

aut

omute

groups

aut

omute

groups

grand master vca's

The TREBLE controls givecontinuous adjustment of boostand cut from +15dB to -15dBwith a 0dB centre detent. Thefrequency is fixed at 10KHz.

The BASS Controls givecontinuous adjustment of

boost and cut from +15dB to -15dB with a 0dB centredetent. The frequency is

fixed at 100Hz.

The SUB switches disconnectthe mic/line returns from thestereo master buss and routethe signals to the audio subgroups directly below,without passing through the

pan control.

The GRAND MASTER VCAswitches assign the audio subgroups to the 2 grand master vca sub groups.

The AUTO MUTE GROUP

switches assign the audio subgroups to the 8 auto mutegroups.

The SAFE switchesdisconnect the audio subgroup mutes from the automute busses.

17

MIC/LINE RETURNS

GROUPS

SOLO SOLO

MUTE MUTE

+48 +48

0 0

+50

+20 +20

+50-30 -30

-15 -15 +15+15

-15 -15

0 0

0 0

+15 +15

ll

cc

r rpan pan

treble

gain

bass

gain

SUB SUB

The GAIN controls givecontinuous adjustment of themic/line return gains from+50dB to -30dB. The specialinput circuits maintain fullheadroom from mic level toline level without the use of a

pad.

The mic/line return PANcontrols place the returnsignals within the stereomaster mix and have aconstant power law i.e. -3dBat the centre position.

The mic/line return MUTEswitches mute the returnsignals and are under

automation control.

The mic/line return SOLOswitches send the returnsignals to the mono PFL andstereo AFL busses. If a switchis pressed for a short time itwill latch on or off, but if it isheld on for more than 1 secondthe latching is disabled andwhen the switch is released the

solo will turn off.

The 48V switches connect 48volt phantom power to themic/line inputs as required for condenser microphones etc.

7/16/2019 xl4-b-op-man


MIDAS XL414

ll

cc

r rpan pan

TALK TALK

INS INS

ST ST

mute mute

solo solo

group

10

10

5

5

0

20

30

40

50

60

dB

The TALK switches connect theaudio sub groups to theCOMMS module. When theTALK TO GROUPS switch onthe COMMS module isactivated it is then able to routeits oscillator, pink noise,

external input, talk mic or comms mic to the audio subgroups.

The INS switches connect thegroup insert return signals tothe audio sub groups.

The ST switches connect the post fader audio sub group

signals to the stereo master bus via the pan controls.

The group PAN controls placethe audio groups within thestereo master mix and have aconstant power law i.e. -3dB atthe centre position.

The group MUTE switchesmute the audio groups at all

points except the insert sendand are under automation andautomute group control.

The group SOLO switches sendthe group input signals to themono PFL and stereo AFL

busses. If a switch is pressed for a short time it will latch on or off, but if it is held on for morethan 1 second the latching isdisabled and when the switch isreleased the solo will turn off.

The GROUP FADERS givecontinuous adjustment of theaudio sub group levels from +

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MIDAS XL412

aux aux aux aux aux aux aux aux

group group group group group group group group

mix groups mix groups mix groups mix groups mix groups mix groups mix groups mix groups

sends sends sends sends sends sends sends sends

returns returns returns returns returns returns returns returns

+21++18++15++12++9++6++3+

0-3--6--9-

-12--15--18--21--24--27--30--33--36-

+21++18++15++12++9++6++3+

0-3--6--9-

-12--15--18--21--24--27--30--33--36-

+21++18++15++12++9++6++3+

0-3--6--9-

-12--15--18--21--24--27--30--33--36-

+21++18++15++12++9++6++3+

0-3--6--9-

-12--15--18--21--24--27--30--33--36-

+21++18++15++12++9++6++3+

0-3--6--9-

-12--15--18--21--24--27--30--33--36-

+21++18++15++12++9++6++3+

0-3--6--9-

-12--15--18--21--24--27--30--33--36-

+21++18++15++12++9++6++3+

0-3--6--9-

-12--15--18--21--24--27--30--33--36-

+21++18++15++12++9++6++3+

0-3--6--9-

-12--15--18--21--24--27--30--33--36-

MIDAS XL412

Group Pod

FUNCTION: To meter 16 group outputs, 16 aux master sends and 16 line level returns.

19

7/16/2019 xl4-b-op-man


MIDAS

aux

group

mix groups

sends

returns

+21++18++15++12++9++6++3+

0-3--6--9-

-12--15--18--21--24--27--30--33--36-

The AUX switch changes thefunction of the left and rightmeters so that they monitor the aux send outputs in placeof the audio group outputs.

The RETURN switch changesthe function of the left and rightmeters so that they monitor the

post fader line return signals. If the AUX switch is not activated

the meters return to monitoringthe audio group outputsregardless of the RETURNswitch position.

The METERS monitor the peak signal level of the group,aux or returns as describedabove but when the GLOBALMETER CHANGE OVER switch on the COMMSmodule is activated themeters monitor the group bus,aux bus or line return input

amplifiers ( which ever isselected ).

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solo solo solo solo solo solo solo solo solo solo

s oi s oi s oi s oi s oi s oi s oi s oi s oi s oi soi

mute mute mute mute mute mute mute mute mute mute mute

MIDAS XL413

solo

1 2 3 4 5 6 7 8 9 10 B

10

10

5

5

0

20

30

40

50

60dB

10

10

5

5

0

20

30

40

50

60dB

10

10

5

5

0

20

30

40

50

60dB

10

10

5

5

0

20

30

40

50

60dB

10

10

5

5

0

20

30

40

50

60dB

10

10

5

5

0

20

30

40

50

60dB

10

10

5

5

0

20

30

40

50

60dB

10

10

5

5

0

20

30

40

50

60dB

10

10

5

5

0

20

30

40

50

60dB

10

10

5

5

0

20

30

40

50

60dB

10

10

5

5

0

20

30

40

50

60dB

soi

mute solo

A

10

10

5

5

0

20

30

40

50

60dB

MIDAS XL413Grand Master A

VCA Fader

FUNCTION: Moving fader control of 10 VCA sub groups and 2 grand masters with facility to meter andsolo listen.

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solo

s oi

mute

MIDAS

1

10

10

5

5

0

20

30

40

50

60

dB

The vca SOLO switches areused to monitor VCA subgroups by creating acorresponding AUDIO subgroup on the stereo AFL busses.

All input channels and linereturns that are assigned to aspecific vca sub group will besummed onto the solo busseswhen that vca solo is active.

Note i. If large numbers of inputs areassigned to one vca sub group, therewill be a higher than usual signal levelsent to the solo busses when the vcasolo is active (+ 6 to + 10 dB approx.).

Note ii. When vca solo switches are

active the PFL buss also receivessignals from the vca sub group inputs

but it will NOT be a truerepresentation of the relative levelswithin the vca sub group. This featureis however useful as it allowsconfirmation of signal present andsignal quality when the vca fader isdown or the vca sub group is muted. Itis therefore important to know thestatus of the PFL MONITOR switchon the COMMS module before usingthe vca solo switches.

Note iii. If a vca solo switch is pressedfor a short time it will latch on or off,

but if it is held on for more than 1second the latching is disabled andwhen the switch is released the solowill turn off.

The ISOlate switchesdisconnect the vca sub groupfaders and mutes fromautomation screen recall.Screen storage is still active.

The vca MUTE switchesmute any post fader inputchannel signals which areassigned to the corresponding

The VCA GROUP faders aremotorised and under automation control. They givecontinuous adjustment of thevca sub group gains from+10dB to off.

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s oi

mute solo

A

10

10

5

5

0

20

30

40

50

60

dB

The grand master A and B vcaSOLO switches are used tomonitor the grand master A andB VCA sub groups by creatinga corresponding AUDIO subgroups on the stereo AFL

busses. All AUDIO sub groupsthat are assigned to grandmaster vca A or B will besummed onto the solo busseswhen the vca solo is active.

Note i. When a grand master vca soloswitch is active the PFL buss alsoreceives signals but they are NOT atrue representation of the relativelevels within the grand master vca subgroup. This feature is however usefulas it allows confirmation of signal

present and signal quality when thegrand master vca fader is down or muted. It is therefore important toknow the status of the PFLMONITOR switch on the COMMSmodule before using the grand master vca solo switches.

Note ii. If a grand master vca soloswitch is pressed for a short time itwill latch on or off, but if it is held onfor more than 1 second the latching isdisabled and when the switch isreleased the solo will turn off.

The ISOlate A and B switchesdisconnect the grand master vca A and B sub group fadersand mutes from automationscreen recall. Screen storageis still active.

The vca MUTE A and Bswitches mute any AUDIOgroup post fader signalswhich are assigned to thegrand master A or B vca subgroups.

The grand master A and BVCA GROUP faders aremotorised and under automation control. They givecontinuous adjustment of thegrand master vca sub groupgains from +10dB to off.

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MIDAS XL421Master Module

25

0

0

+10

+10

MIDAS

MIDAS

XL421

XL421

l

c

r

INS

ON

INS

mute mute

solo solo

masters

dB

balance

record 2

record 1

mute

mute

+18

+18

+15

+15

+12

+12

+9

+9

+6

+6

+3

+3

0

0

-3

-3

-6

-6

-9

-9

solo in place

mute all

SOLO

VCA

INS

mute

+21+18+15+12+9+6+3

0

-3-6-9-12-15-18-21-24-27-30-33-36

aux i/p mutes

monooutput

left

matrix send pre

right

10

10

5

5

0

20

30

40

50

60

dB

10

10

5

5

0

20

30

40

50

60

dB

7/16/2019 xl4-b-op-man


0

0

+10

+10

MIDAS XL421

record 2

record 1

mute

mute

+18

+18

+15

+15

+12

+12

+9

+9

+6

+6

+3

+3

0

0

-3

-3

-6

-6

-9

-9

solo in place

mute all

The RECORD controls ( 1 and2 ) give continuous adjustmentof the stereo record outputsfrom + 10dB to off. The recordsignals are derived from the preinsert master left and rightsignals.

The record METERS monitor the peak signal level of theleft and right record outputs(which ever is the highest ).

The record MUTE switchesmute the record outputs.

The MUTE ALL switcheffectively switches the

console off by muting alloutputs.

The SOLO IN PLACE switchdisconnects the three pre insertmaster signals ( left, mono andright ) and replaces them withthe stereo AFL solo busses.This does not effect the master to matrix feeds which means the

matrix mixes can be "solo in placed" on the master outputs.

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dB

SOLO

VCA

INS

mute

+21+18+15+12+9+6+3

0-3-6-9

-12-15

-18-21-24-27-30-33-36

aux i/p mutes

monooutput

10

10

5

5

0

20

30

4050

60

dB

The mono INS switchconnects the mono insertreturn signal to the mono mix.

The VCA switch connects themono vca fader to the stereomaster fader so that the mono

output tracks any changes of the stereo master fader.

The mono SOLO switchsends the mono master signalto the PFL and AFL solo

busses. If the switch is pressed for a short time it willlatch on or off, but if it is heldon for more than 1 second thelatching is disabled and when

the switch is released the solowill turn off. The master mixsignal can not be sent to thesolo busses while any other solo is active.

The mono METER monitorsthe peak level of the postfader mono signal. When theGLOBAL METER CHANGEOVER switch on theCOMMS module is activatedthe meter monitors the mono

bus summing amplifier output.

The mono MUTE switch mutesthe mono output but not themono insert send. This switch is

under automation control.

The mono FADER givescontinuous adjustment of themono output level from + 10dBto off.

The AUX I/P MUTE mutesevery aux line return input onthe GROUP modules.

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MIDAS XL421

l

c

r

INS

ON

INS

mute mute

solo solo

masters

balance

left

matrix send pre

right

10

10

5

5

0

20

30

40

50

60

dB

MATRIX SEND PRE. Feedsto the matrix modules from thestereo busses are post fader asa default. When the MATRIXSEND PRE is active, the feedchanges to pre fader and preinsert.

The INS LEFT and RIGHTswitches connect the master left and right insert returnsignals to the stereo master mix.

The BALANCE (pan) controlgives continuous andreciprocal adjustment of thestereo left and right signallevels by + 3dB to off. Thisallows fine adjustment of theleft, right power levels andimaging.

The stereo master MUTEswitches mute the stereo master outputs but not the insert sends.These switches are under automation control.The stereo master SOLO

switches send stereo master signals to the PFL mono andAFL stereo busses. If theswitch is pressed for a shorttime it will latch on or off, butif it is held on for more than 1second the latching is disabledand when the switch isreleased the solo will turn off.The master mix signal can not

be sent to the solo busses whileany other solo is active. Thismeans that they can be left onto provide a stereo master signal in the headphones whichwill be overridden if any other solo is activated on theconsole.

The stereo MASTER FADER gives continuous adjustment of the stereo master mix levelfrom + 10dB to off.

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MIDAS XL422

+21+ +21+ +21+ +21+ +21+ +21++18+ +18+ +18+ +18+ +18+ +18++15+ +15+ +15+ +15+ +15+ +15++12+ +12+ +12+ +12+ +12+ +12++9+ +9+ +9+ +9+ +9+ +9++6+ +6+ +6+ +6+ +6+ +6++3+ +3+ +3+ +3+ +3+ +3+

0 0 0 0 0 0-3- -3- -3- -3- -3- -3--6- -6- -6- -6- -6- -6--9- -9- -9- -9- -9- -9-

-12- -12- -12- -12- -12- -12--15- -15- -15- -15- -15- -15--18- -18- -18- -18- -18- -18--21- -21- -21- -21- -21- -21--24- -24- -24- -24- -24- -24--27- -27- -27- -27- -27- -27-

-30- -30- -30- -30- -30- -30--33- -33- -33- -33- -33- -33--36- -36- -36- -36- -36- -36-

change over change over change over change overl r

pfl local

solol

1 3 5 7

r

2 4 6 8masters

matrix matrix matrix matrix

MIDAS XL422

Master Pod

29

FUNCTION: Metering for master stereo, solo, PFL and local busses plus matrix outputs and stereo auxsend outputs.

7/16/2019 xl4-b-op-man


+21++18++15+

+12++9++6++3+

0-3--6--9-

-12--15--18--21--24--27--30--33--36-

MIDAS XL422

master

l r

Master Stereo Bus Metering

The METERS monitor the

peak signal levels of thestereo master left and rightoutputs.When the GLOBAL METER CHANGE OVER switch onthe COMMS module isactivated the meters monitor the master left and right busamplifiers.

30

7/16/2019 xl4-b-op-man


+21++18++15++12++9++6++3+

0-3--6-

-9--12--15--18--21--24--27--30--33-

-36-

pfl local

solol r

Solo, PFL and Local Metering

The meters monitor the peak signal level of the stereo AFLleft and right solo busses or thePFL and local output level.

The change over is automaticas part of the PFL Monitor switch on the COMMSmodule.

31

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+21++18++15++12++9++6++3+

0-3--6-

-9--12--15--18--21--24--27--30--33--36-

change over

1 2

matrix

Matrix and Stereo Master Aux Send Metering

32

The CHANGE OVER switcheschange the function of the leftand right meters so that theymonitor the stereo aux sendoutputs in place of the matrix

outputs.

The METERS monitor the peak signal level of the matrix or stereo aux outputs as describedabove but when the GLOBALMETER CHANGE OVER

switch on the COMMS moduleis activated the meters monitor the matrix bus or stereo aux busamplifiers ( which ever isselected ).

7/16/2019 xl4-b-op-man


MIDAS XL432CommunicationsModule

33

MIDAS

MIDAS

XL432

XL432

pfl speaker

a/bspeakers

headphonessource

comms

C/O

C/O

SOLO

C/O

C/O

C/O

OSC

1kHz

ON

PINK

100

300 1k

external

oscillatorto talk

freq

TALK

TALK

TALK

TALK

TALK

to auxes

to groups

to mono

to l+r

to matrix

ON

LINK

talk ext talk int

talk mic

comms

call

+6

0

2tr-return

meteringglobal

add mode

+6 +6

0 0

1

2

3

4

5

6

7

8

auto

mute

rg

oup

mast

ers

10k

level+6

0

level+6

0

pfl-ls level+6

0

pfl+6

0

ext. 2+6

0

intercom+6

0

ext. 1+6

0

clearsolo

pfl to mon

solo to mon

local ls-level

0

+10

mono

-20dB

left right

l ef t r ig htm ut e m ut e

ext inttalk talk

to tob ot h b ot h

ON

ON

7/16/2019 xl4-b-op-man


MIDAS XL432

OSC

1kHz

ON

PINK

100

300 1k

external freq

TALK

TALK

TALK

TALK

TALK

to auxes

to groups

to mono

to l+r

to matrix

call

10k

level+6

0

The CALL switch andindicator has two functions:-i. It illuminates when anincoming "clearcom" call isexpected.ii. It fires a DC pulse when

pressed to signal "clearcom"devices (by illuminating their call lamps) that an outgoingcall is to be made.

The OSC switch activates theoscillator ready for connectionto the oscillator output or thetalk system .

The FREQ control givescontinuous adjustment of theoscillator frequency from

100Hz to 10K.The 1KHz switch overrides thefrequency control and sets theoscillator to 1KHz.

The EXTERNAL ON switchconnects the oscillator signalto the oscillator externaloutput socket.

The PINK noise switchdisconnects the oscillator and

replaces it with pink noise.

The oscillator LEVEL controlgives continuous adjustment of the oscillator and pink noiselevels and has a range from +6dB to off.

The TALK TO AUXES switchsends the talk system signalsto ALL the aux busses.

The TALK TO GROUPSswitch sends the talk systemsignals to any group buss whichhas its GROUP module TALK switch active.

The TALK TO MATRIXswitch sends the talk systemsignals to any matrix busswhich has its MATRIX module

TALK switch active.

The TALK TO MONO switchsends the talk system signals tothe mono master bus.

The TALK TO LEFT ANDRIGHT switch sends the talk

system signals to the stereomaster bus.

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7/16/2019 xl4-b-op-man


C/O oscillatorto talk

ON

LINK

talk ext talk int

talk mic

comms+6

0

+6 +6

0 0

1

2

3

4

5

6

7

8

auto

mute

rg

o

up

masters

ext inttalk talk

The OSCILLATOR TO TALK CHANGE OVER switchconnects the oscillator and

pink noise signals to the talk system in place of the talk mic.

The COMMS ON switch sendsthe comms headset mic

amplifier signal to the commsoutput / input connector.

The LINK switch connects thetalk mic to the intercom insuch a way that the talk mic,headphones and PFL speaker output can send and receive(respectively) "clearcom"signals as well as the headset.When in LINK mode theCOMMS ON switch activatesthe talk mic onto the commssystem with the side tonecancel circuit preventing howlround.

The COMMS control givescontinuous adjustment of theincoming "clearcom" signalsthat feed to the headset and hasa range from + 6dB to off.

The TALK XLR socket accepts balanced 150 Ohm microphonesignals from - 50dBu to -20dBu and uses an auto ranginggain system to bring the signal

The TALK EXTERNALcontrol gives continuousadjustment of the talk micamplifier signals that will feedthe talk external output. Theadjustment range is from +

6dB to off.The TALK EXTERNALswitch connects the talk mic tothe talk external output anddims the local monitor outputs

by 20dB to prevent howl

The TALK INTERNALcontrol gives continuousadjustment of the talk mic

amplifier signals that will feedthe internal talk system. Theadjustment range is from +6dB to off.

The TALK INTERNAL switchconnects the talk mic to theinternal talk system and dimsthe local monitor outputs by20dB to prevent howl round.

None of the talk internal and

external controls act on signalssent to the comms system whenin LINK mode.

The AUTO MUTE GROUPMASTER switches (1 to 8)activate the mute circuits onany appropriately mute groupassigned input channel or audio group.

35

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pfl speaker

a/bspeakers

headphones

source

C/O

C/O

SOLO

C/O

C/O

2tr-return

meteringglobal

add mode

level+6

0

pfl-ls level+6

0

pfl+6

0

ext. 2+6

0

intercom+6

0

ext. 1+6

0

clearsolo

pfl to mon

solo to mon

ON

ON

The SOLO ADD MODEswitch allows multiple channelaccess to the solo busses.When the solo add mode is off the action of pressing a soloswitch will cancel any other active solo except for themaster solo switches where the

cancelling effect is onlytemporary (see XL421 Master Module).

The GLOBAL METER CHANGE OVER switchchanges the operation of everymeter on the console except thecomms meters and the recordmeters. The "normal" meter operation is to monitor prefader on input channels and

post fader on all other signals.When the global meter changeover is active the meters changeto monitor input amplifiers or

bus amplifiers (as appropriate)on all signals.

The 2 TRACK RETURNCHANGE OVER switchconnects the 2 track inputsignals to the monitor systemoutputs in place of the master left and right signals.

The PFL TO MONITOR switch connects the PFLsignals to the monitor systemoutputs in place of the 2 track return or master left and rightsignals when ever a solo isactive within the console. Thisswitch overrides the SOLO TOMONITOR switch below.

The SOLO TO MONITOR switch connects the solo AFLsignals to the monitor systemoutputs in place of the 2 track

return or master left and rightsignals when ever a solo isactive within the console.

The SOLO ON / CLEAR switch and indicator has twofunctions:-i. It illuminates when any soloswitch (except a master soloswitch) is active.ii. When pressed it clears anyactive solo switches (except

master solo switches).

The INTERCOM level controlgives continuous adjustment of

the "clearcom" signal levelsthat can be fed into theheadphones and PFL speaker output. It has a range from +6dB to off.

The EXTERNAL 1 levelcontrol gives continuousadjustment of incoming signalsfrom the first external inputand has a range from + 6dB tooff.

The PFL level control givescontinuous adjustment of incoming signals from the PFL

bus and has a range from +6dB to off.

The EXTERNAL 2 levelcontrol gives continuousadjustment of incoming signalsfrom the second external inputand has a range from + 6dB tooff.

The A/B SPEAKER CHANGE OVER re-routes thestereo monitor signals to fromthe "A" speaker outputs to the"B" speaker outputs.

The PFL LS LEVEL controlgives continuous adjustment of signals sent to the PFL speaker output and has a range from +6dB to off.

The headphone SOURCECHANGE OVER connectsPFL signals to the headphoneamplifier in place of themonitor signals.

The headphone LEVEL controlgives continuous adjustment of signals sent to the headphones

and has a range from + 6dB tooff.

36

7/16/2019 xl4-b-op-man


MIDAS XL432

comms

local ls-level

0

+10

mono

-20dB

left right

left rightmute mute

to toboth both

The LOCAL LS LEVELcontrol gives continuousadjustment of signals sent tothe "A" or "B" monitor speaker outputs and has a range from +10dB to off.

The PHASE switch reversesthe phase of the left handmonitor signal.

The MONO switch adds theleft and right monitor signalswith a 4.5dB summing loss.

The left/right CROSSOVER routes the left hand monitor signal onto the right channeloutput speakers and the righthand monitor signal onto the

left channel output speakers.

The -20 DIM switch andindicator has two functions:-i. It can be used to switch themonitor speaker outputs to dim

by 20dB.ii. It illuminates when the talk system has activated a dim to

prevent howl round.The LEFT TO BOTH switchroutes left hand monitor signalto both the left and rightmonitor speaker outputs.

The RIGHT TO BOTH switchroutes right hand monitor signal to both the left and rightThe MUTE LEFT switch

controls the mute function onthe left hand side of the localmonitor speaker outputs.

The MUTE RIGHT switchcontrols the mute function onthe right hand side of the local

monitor speaker outputs.

37

7/16/2019 xl4-b-op-man


MIDAS

MIDAS

XL441

XL441

0 0

0 0

masters right

masters left

TA LK TA LK

INS INS

mute mute

solo solo

matrix

0

+10

MUTE

SOLO

MTX

stereoaux

master

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6

+6

+6

+6

+6

+6

mix 16

mix 15

mix 14

mix 13

mix 12

mix 11

mix 10

mix 9

mix 8

mix 7

mix 6

mix 5

mix 4

mix 3

mix 2

mix 1

global pre

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

ON

10

10

5

5

0

20

30

40

50

60

dB

MIDAS XL441

Matrix Module

38

7/16/2019 xl4-b-op-man


MIDAS XL441

0

+10

MUTE

SOLO

MTX

stereoaux

master

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

0 0

+6 +6

mix 16

mix 15

mix 14

mix 13

mix 12

mix 11

mix 10

mix 9

mix 8

mix 7

mix 6

mix 5

mix 4

mix 3

mix 2

mix 1

global pre

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

oo

ON

The STEREO AUX MASTER control gives continuousadjustment of the stereo auxoutput level from + 10dB to off.

The stereo aux MUTE switchmutes the stereo aux outputs.

The stereo aux SOLO switchsends stereo aux signals to thePFL mono and AFL stereo

busses. If the switch is pressed for a short time it willlatch on or off, but if it is heldon for more than 1 second thelatching is disabled and whenthe switch is released the solowill turn off.

The MTX switch sends the prefader stereo aux bus signals to

the matrix mix directly belowso that the console can be usedfor monitor applications.

The MIX controls ( 1 to 16 )give continuous adjustment of

the audio sub group levelssent to the matrix mixes from+ 6dB to off. If the FADER CHANGE OVER switch onthe GROUP module is activethe mono aux bus will routeto the matrix mix in place of the audio sub group.

The GLOBAL PRE ON switch

changes the audio sub groupsignals that are routed via themix controls to the matrix from

post fader to pre fader.

39

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MIDAS XL441

0 0

0 0

masters right

masters left

TALK TALK

INS INS

mute mute

solo solo

matrix

+6

+6

+6

+6

oo

oo

oo

oo

10

10

5

5

0

20

30

40

50

60

dB

The MASTER LEFT controlsgive continuous adjustment of master left signals that aresent to the matrix mixes. Theadjustment is from + 6dB tooff.

The MASTER RIGHT controlsgive continuous adjustment of master right signals that are sentto the matrix mixes. Theadjustment is from + 6dB to off.

The TALK switches connectthe matrix busses to theCOMMS module. When theTALK TO MATRIX switchon the COMMS module isactivated it is then able toroute its oscillator, pink noise,external input, talk mic or comms mic to the matrix mix.

The INS switches connect thematrix insert return signals tothe matrix mixes.

The matrix MUTE switchesmute the matrix outputs but notthe insert sends. These switchesare under automation control.

The MATRIX FADERS givecontinuous adjustment of thematrix levels from + 10dB tooff.

The matrix SOLO switchessend signals to the PFL monoand AFL stereo busses. If theswitch is pressed for a shorttime it will latch on or off, butif it is held on for more than 1second the latching is disabledand when the switch isreleased the solo will turn off.These solo switches can not beoperated if the console is

being used in SOLO INPLACE mode. This is a safetyfeature which prevents matrixoutput signals from beingrouted back to their inputs viathe master matrix feed.

40

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last nextnow

memory store system

program

recall

vcamuteaudio safe

group assignment mode

by

external

internal

memory

a1

a2

alt. scenes

pointmain

time code

scene name

secs framesminshours

scene number

out board electronics

automation system

1. The AUDIO switch changes the function of every GROUP ASSIGN SWITCHand its corresponding LED indicator on the INPUT channels so that AUDIOgroup assignment can be viewed or changed.

2. The VCA switch changes the function of every GROUP ASSIGN SWITCHand its corresponding LED indicator on the INPUT channels so that VCA groupassignment can be viewed or changed.

3. The MUTE switch changes the function of every GROUP ASSIGN SWITCHand its corresponding LED indicator on the INPUT channels so that MUTE groupassignment can be viewed or changed.

4. The SAFE switch changes the function of the audio, vca, and mute switchesabove so that the groupings can be viewed only. i.e. all GROUP ASSIGNSWITCH on the INPUT channels will be disabled.

41

VCA, Audio and Automute Group Assign

MIDAS XL443Automation Control

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MIDASXL4 Automation system

System operation

while every effort has been made to ensure it is accurate, there may be changes dependent on the software

version. This has been writen for Version 25.A

Should you find an error, or you find a section ambiguous, please let MIDAS know so that we may

correct the problem.

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Midas XL4 Automation system

Page 2

Information about this manual

In this document the following colours have been used to aid the text:

Descriptions of what can be seen on the Alpha-numeric displays are in green, such as

‘OVERSTORE’.

When a button is referred to, its name is in blue, such as ‘STORE’.

Functions or operation names are in red, such as ‘SCENE NAME’.

Warnings and important notes have their headings in magenta, such as ‘WARNING’.

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Page 3

Contents

Introduction. 5

Automation system overview. 5

The Central control unit. 6

Operating the system. 7

Input fader mode control. 7

System Start Up 7

Unlock The Automation System 7

Scene Storage 8

Scene Recall 8

System menu 9

Unlock 9

Lock 9

Chmidiout 10Chmidin 10

Automidi 10

RSLink 10

Faders 10

Mutes 10

Matrix 10

Contacts 10

XL4 Size 11

Mem Size 11

Format 11Test 1 11

Test 2 11

Test 3 11

Test 4 11

Open 11

Restrict 11

Totclear 11

Total Clear Format Procedure 12

Store Menu 15

New Scene 15

Overstoring 16

X-FADE (Crossfade). 16

Expand 16

Insert. 16

Delete. 16

Copy. 16

Edit. 16

Edit scene name. 16

Edit MIDI In 17Midi Clear 17

Edit midi Out 17

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Page 4

Contents Cont.

Memory menu. 18

Toggle 18

Internal. 18External. 18

Copy all. 18

Clear all. 18

Alternate Buttons 19

Using the system - general hints and tips. 19

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Page 5

Introduction.

Automation system overview.

The MIDAS XL4 is an ‘intelligent’ live mixing console. It utilises microprocessor technology to

provide the operator with unprecedented features for a live console, whilst remaining easy to use and

retaining the familiar look of a normal console.

The update speed of the MIDAS XL4 automation was a high priority of the system design, the

entire console is capable of updating itself over fifty times a second. Thus the delay between pressing the

‘RECALL’ button and the desk update is negligible.

Some sound engineers harbour concerns about giving control of a sound system over to

computers, in the case of the MIDAS XL4 these concerns are unfounded. For one thing, the MIDAS XL4

is a ‘computer assisted’ console. Most of the audio functions may be controlled without the aid of microprocessors, and all audio functions may be controlled without the central control CPU.

With the exception of the central controller CPU, the microprocessor chips used are ‘single chip

micro’s’ or ‘microcontrollers’. The CPU, program memory, RAM, data converters and timers are all

housed in a single chip. This gives the utmost in reliability as the ‘computer’ itself is protected from the

outside world by it’s input/output ports.

Fifty microprocessors (in a standard 48 input console) split the workload, resulting in high speed

operation and also providing the large degree of protection required for live performances. Should one

microprocessor ‘fall over’ the others will continue to operate normally.

In addition, the system has been designed is such a way that if a microprocessor does fail, the

audio circuits controlled by that unit will usually remain active in the state last recalled. The chances of a

microprocessor failing in such a way as to reconfigure its audio control circuits are extremely remote. The

most likely indication that a microprocessor has failed will be that it fails to respond to the central control

CPU. The audio circuits will continue to work.

Important controls such as the MUTE switch, whilst they can be over-ridden by microprocessor

control, will work without the intervention of a microprocessor.

Each input channel has its own microprocessor, the VCA master section has one and the finalmicroprocessor is in the central control section.

All the microprocessors are located in the fader bay of the XL4. No audio passes through the fader

bay, allowing a high degree of immunity to digital breakthrough to be achieved.

The use of multiple processors also means that the software, instead of being one large program, is

broken up into a number of small programs which are easier to test and debug, minimising the chances of

software problems.

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Page 6

The Central control unit.

The MIDAS XL4 Automation is controlled from the central control CPU mounted to the right of

the VCA Master faders.

The top four switches, labelled ‘AUDIO’, ‘MUTE’, ‘VCA’ & ‘LOCK’ are not directly part of the

central control CPU, these switches directly control the operating mode of the input fader automation.

(See Input fader mode control, later).

The central controller CPU has been developed by OUTBOARD ELECTRONICS Ltd. in

conjunction with MIDAS. The operation of the MIDAS XL4 Automation system is based on the control

system used on the OUTBOARD ELECTRONICS SS20 Moving fader system. Many operators used to

the SS20 will find operating the MIDAS XL4 Automation system very familiar.

Control of the system is achieved with eight buttons and a ‘jogwheel’. Operator feedback is done with

two displays, a four character ‘scene number’ display and an eight character ‘scene name’ display.

Auxiliary functions are accessed through a series of menus.

The main 1 Meg of internal memory is battery backed up and may also be downloaded on to a memory

card.

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Page 7

Operating the system.

Input fader mode control

The top four switches of the central control unit, labelled ‘AUDIO’, ‘MUTE’, ‘VCA’ & ‘LOCK’

directly control the operating mode of the input fader automation.

With the ‘AUDIO’ mode enabled, the fader bay switch bank controls the audio group routing.

Only switches 1-8 are used. Switches 9 & 10 are used to trigger a input moving fader calibration on the

input channel (when fitted, if no moving fader is fitted the function will time out). To use this function

press switch 9. The LEDs associated with switches 9 & 10 will flash. This indicates that the clear function

is ‘armed’. Pressing switch 10 will clear the channel.

If switch 9 is pressed, arming the calibrate function, and it is not desired to calibrate the channel,

pressing switch 9 again will disarm the clear function.

With the ‘MUTE’ mode enabled, the fader bay switch bank controls the automute assignments.

Only switches 1-8 are used for automutes. Switches 9 & 10 are used for the channel clear function.

The channel clear function resets all computer controlled settings on that channel to off. To use

this function press switch 9. The LEDs associated with switches 9 & 10 will flash. This indicates that the

clear function is ‘armed’. Pressing switch 10 will clear the channel.

If switch 9 is pressed, arming the clear function, and it is not desired to clear the channel, pressing

switch 9 again will disarm the clear function.

With the ‘VCA’ mode enabled, the fader bay switch bank controls the VCA assignments.

When the system is ‘locked’ (with the ‘LOCK’ switch illuminated) the three operating modes may

be called up, allowing the state of the switches to be seen, but the switches will not operate. This is to

prevent accidental operation of the fader bay switches.

SystemStart up

Following power up, the alpha-numeric display will briefly show the software release version,

followed by ‘READY’. This indicates that the initialisation is complete and the system is ready for use.

The system powers up in the ‘locked’ state. In this state scenes may be recalled but not stored. All

functions which modify the stored data are disabled until the system has been unlocked.

Unlocking The System

To unlock the system after start up the following procedure must be followed. Press the SYSTEM

button and UNLOCK will be displayed in the right hand screen. Press the YES button and the left hand

window will change to read 1200, using the jog wheel alter this screen until the correct password is

displayed. This password is found on the insert provided with this manual or can be obtained from Midas.

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Page 8

Scene storeage

Storing scenes may only be done when the system is unlocked.

To store a scene, first display the position you wish to store the scene in on the left hand windowby using the jog wheel. Scene 0000 is a preset scene and can not be overstored. Once the required position

is displayed press the ‘STORE’ button. The display will respond with ‘NEW’, if the scene does not yet

exist or ‘OVERSTORE’ if the scene does exist.

Following a scene store operation, the scene number is incremented by 1 or 0.1 depending on wether the

scene was expanded previously.

Scene recall

Recalling scenes is achieved using the ‘LAST’, ‘NOW’ and ‘NEXT’ buttons, and also using the

jogwheel.

Pressing the ‘NEXT’ button causes the system to step to the next scene number in memory and

recall it to the console. After the last scene has been recalled, pressing ‘NEXT’ will cause the display to

show ‘END’ and no other operation will occur.

Pressing the ‘LAST’ button causes the system to step to the previous scene number in memory

and recall it to the console. After the first scene has been recalled, pressing ‘NEXT’ will cause the display

to show ‘START’ and no other operation will occur.

Pressing ‘NOW’ will recall the scene number currently shown in the left hand section of thedisplay. This number may be adjusted using the jogwheel.

When the system is locked the jogwheel will only use the numbers of scenes that exist in memory.

No operations other than recall are available while the system is locked.

When the system is unlocked the jogwheel adjust the scene number in increments of one whether

the scene exists or not. Attempting to recall a scene number which does not exist will result in the

message ‘EMPTY’.

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Page 9

System menu.

To call the system menu, press the ‘SYSTEM’ button. The display will show ‘SYSTEM’ and the

‘SYSTEM’, ‘NO’ and ‘YES’ buttons will flash.

The jogwheel may then be used to scroll through the system options.

SYSTEM MENU – UNLOCK

LOCK

CHMIDOUT User Options

CHMIDIN

AUTOMIDI

RS-LINK

FADERS

MUTES

MATRIX

CONTACTS

XL4_SIZE

MEM.SIZE

FORMAT? System Set up

TEST- 1 Options

TEST- 2

TEST- 3

TEST- 4

TEST- 5OPEN

RESTRICT

TOTCLEAR

UNLOCKTo unlock the system, press the ‘YES’ button while the display is showing ‘UNLOCK’. The jogwheel

may then be used to adjust the password number shown in the left section of the display.

When the correct password number is shown, press ‘YES’. If the number is accepted the display will

briefly show ‘OK’. This indicates that the system is unlocked. The display will then return to showing the

title of the current scene.

If the display returns directly to the scene title without showing ‘OK’ then the number has not been

accepted and the system is still locked.

LOCK

To lock the system, rotate the jogwheel until the ‘LOCK’ option is displayed. Pressing ‘YES’ will then

lock the system, this will be indicated by the display briefly showing ‘DONE’. The display will then

return to showing the title of the current scene.

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Page 10

CHMIDOUTThis option allows the output MIDI Channel to be selected. To set the channel number, press the ‘ YES’

button while the display is showing ‘MIDI CH’. The jogwheel can then be used to select the required

channel. When the required channel number is displayed, press the ‘YES’ button to enter it.

CHMIDINThis option allows the input MIDI Channel to be selected. This is the channel down which program

changes can be sent that the XL4 will respond to when set up in the edit menu, see store menu. To set the

channel number, press the ‘YES’ button while the display is showing ‘MIDI CH’. The jogwheel can then

be used to select the required channel. When the required channel number is displayed, press the ‘YES’

button to enter it.

AUTOMIDIThis function when enabled automatically places a midi out message with every scene stored (0 to 99

only). This message is sent out on the midi channel selected using the MIDI CH selection. For example if

scene 0100 is stored after automidi is enabled, when recalled a program change one will be sent from the

midi out port on the midi channel selected in MIDI CH.

RS-LINKThis function allows you to enable and disable the RS link on the rear of the console (RS232-2). Pressing

the ‘YES’ button when this is displayed in the left hand display will then allow you to choose YES or NO

using the jog wheel. Once you have choosen pressing ‘YES’ will save your choice and drop you back out

of the menu. This function is used when 2 XL4s are linked, enabling the one consoles automation to

follow the others. You can either make one the consoles a master slave combination by disabling the

RS232 in one console or control the recall of the automation from either console if they are both enabled.

FADERSThis option is not used. However if the memory has been corrupted for some reason (during servicing for

example) this value should be set to zero. This procedure is decribed in the total clear and format

procedure.

MUTESThis option is not used. However if the memory has been corrupted for some reason (during servicing for


procedure.

MATRIXThis option is not used. However if the memory has been corrupted for some reason (during servicing for


procedure.

CONTACTSThis option is not used. However if the memory has been corrupted for some reason (during servicing for


procedure.

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Page 11

XL4 SIZEThis number should be set to 48. However if the memory has been corrupted for some reason (during

servicing for example) this value should be set to zero. This procedure is decribed in the total clear and

format procedure.

MEM SIZEThis number should be set to 31. However if the memory has been corrupted for some reason (during

servicing for example) this value should be set to zero. This procedure is decribed in the total clear and

format procedure.

FORMAT

Once the system settings have been entered, this option is used to format the memory

ready for use. This is done by pressing ‘YES’ when the display is showing ‘FORMAT’.

Test 1

This sets the speed of Test 2 and 3Test 2

This cycles through the scenes at a speed set by Test 1.

Test 3This is a continuous read/write test as a speed set by Test 1.

Test 4This is a system memory test, the automation control system will write and read to each bit of

memory individually and check for any errors. This test is extreamly time consuming and special

equipment is needed to see any results as there is no decipherable error messages are shown on the display

if a fault is found.

WARNING!During the test modes, the motorised faders should be disabled using the ‘ ISOLATE’ switch.

Allowing the faders to attempt to keep up with the test function for long periods may damage the servo

drivers.

OPENThis allows you to enter the password which then enables access to the RESTRICT function in the

menu. To access this press the YES button the left hand screen will then change to read 3200, using the

jog wheel enter the correct password and press the YES button. This password is found on the insert

provided with this manual or the separate password pdf provided.

RESTRICTThis function is only accessible after the correct password has been entered into the OPEN option.

This function allows Midas to look at the last 8 operations of the automation control system and aws

placed in for software debugging purposes.

Total ClearThis function allows you to do a complete low level format of the automation control system

memory. This procedure is shown next : WARNING if this procedure is carried out all user information

will be lost.

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Page 12

Total Clear and Format Procedure

P r e ss S Y S T E M b u t to n o nC P U p a n elS c ro ll to T O T C L E A R a n d

p r e ss C O N F I R M ( la r gegreen bu t ton)

T h e n a t PA S S W O R D ?p r o m p t , sc r o l l to 2 3 4 5 a n d

C O N F I R M

T O TA L C L E A R A N D F O R M A T P R O C E D U R E

D i s pl a y p ro m p t s R U S U R E ,p r es s C O N F I R M

C O N F IR M b u tt on

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Page 13

Display prompts TOTAL

CLE AR, then WA IT, then

D O N E

Press SYSTEM, Scroll to

FAD ERS, Press CON FIRM

Display prompts 2222

P A S S W O R D ?

Scroll to 2345, Press

Display prompts FAD ERS

then 000 SE TU P, PressCONF IRM

Scroll to M UTE S,Press

CONFIRM, d isp lay

promp ts 000 SETU P, press

CONF IRM

Scroll to M ATRIX, Press

CONFIRM, d isp laypromp ts 000 SETU P, press

CONF IRM

Scroll to CON TACTS,

Press CO NFIRM , d isp lay

promp ts 000 SETU P, press

CONF IRM

Reset the console by turning pow er off/on or by p ressing the reset button w ithin the

vent below the card socket.

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Page 14

Scroll to ME M SIZE, Press

CONF IRM

If display prom pts 031SETU P, press CONFIRM

If display prom pts 000

SET UP, scroll to 031, press

CONF IRM

Scroll to FORM AT, Press

CONF IRM

Display prom pts WAIT,then DO NE , then displays

START

I t is advisable to repeat this procedure at the beginning of each n ew production, f irs t making sure that

you have saved your data to your external mem ory data card.


SETU P, press CONFIRM


SET UP, scroll to 048, pressCONF IRM

Scroll to XL 4 SIZE,

press CON FIRM

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Page 15

Store Menu

There are 2 possible menus available when the ‘STORE’ button is pressed dependent on whether

you are storeing a new scene or editing an existing one.

If no scene is present in the location you are trying to store to (displayed in the left hand window) themenu you may access is shown below.

STORE – NEW

X-FADE

If a scene has previously been stored in the location you are trying to store to (displayed in the left hand

window)

Overstore - OVERSTORE

X FADE

EXPAND

INSERT

DELETE

EDIT - SC.NAME

MIDI_IN ------- Program Number ***

Midi CLR

MIDI OUT ----- 1-Ch No- Prog

Note on

Note Off

8-Ch No- Prog

Note On

Note Off

9- Exit

New scene.

If the scene number does not yet exist, the display will respond with ‘NEW’. To create the scene

press ‘YES’. The scene will be created and the current status of the console will be stored in it.

The scene number may be adjusted using the jog wheel before pressing ‘STORE’. The scene

number may be adjusted before or after setting the desired console configuration.

Should ‘STORE’ be pressed in error, the ‘NO’ button will exit the procedure without taking any

further action.

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Page 16

Overstoring

If the scene number does exist, the display will respond with ‘OVERSTORE’. To update the scene

press ‘YES’. The existing scene will be replaced with the current status of the console.

Pressing ‘NO’ will abandon the store procedure without taking any further action.

X-FADE (Crossfade).This allows the faders crossfade speed to be adjusted from 0.5 to 10 seconds in 99 equal steps.

The speed is set using the jogwheel, pressing ‘YES’ then stores the scene.

WARNING When editing the crossfade speed it is important to note that the speed you leave set in the

left hand window will be applied to any scene stored or overstored after.

Expand.This is used to set the scene number increment value to use the decimal places. This is used when the

number of expected scenes is greater than 99. It causes the auto-increment to step in 0.1 steps instead of 1.

InsertThis option allows extra scenes to be inserted between existing scenes. To insert a new scene dial up the

number of the scene that you wish to come a fter the new scene. The scene will be inserted before the

scene displayed.

The new scene will be given the number of the previous scene plus point five.

Once an extra scene has been added, decimal place numbered scenes will be accessible between theprevious scene with a whole number and the next scene with a whole number.

This can occur to two levels, that is scenes may be stored between decimal place numbered scenes using

the ‘hundredths’ digit as well.

DeleteThis option is used to delete the current scene from memory. There is currently no way to restore a scene

once it has been deleted, so this function should be used with caution.

EditEDIT calls up a further sub-menu for editing facilities.

Sc. NAMETo enter or edit a scene name, dial up this option and press ‘YES’.

The character in the left hand position of the scene name display may then be adjusted using the

jogwheel. When the desired character is visible, press ‘YES’ again and the character will be stored. The

next character on the right may then be adjusted. Continue until all eight characters have been entered,

when the normal system operation will resume. To leave a character as it is, press ‘YES without moving

the jogwheel.

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Page 17

MIDI INThis function allows you to edit the midi program change that the scene will be recalled by when

received. The XL4 will monitor the midi channel set in the CH.MIDI in located in the SYSTEM Menu.

MIDI CLR

This function allows you to clear all the mikdi information associated with the particular scene you areon.

This function is used to set up a MIDI message which will be transmitted whenever the scene

containing the message is recalled.

MIDI OUTThis function allows you to edit the 8 possible midi out messages the console can send out when a scene

is recalled.

To program the multiple-midi outputs the following procedure must be followed.

1/ Press STORE and scroll the screen using the jogwheel until EDIT is seen, press the YES button.

2/ Scroll the screen until MIDIOUT is seen, press the YES button.

3/ You may now select one of the eight midiout messages for editing. This may be done using the

jogwheel. When the required message number is displayed in the left hand window press the YES button.

4/ In the left hand window the midi channel the message is sent out on will be displayed. This may be

changed using the jogwheel, when the required channel is selected press YES.

5/ Using the jogwheel you may choose one of the following to edit in the right hand display NOTEOFF,

NOTEON, PROGRAM and CLEAR when the required perameter is displayed press YES. CLEAR willdelete that particular message from the group sent with that scene change.

6/ The chosen perameter may then be changed using the jogwheel and selected by pressing YES when the

required value is displayed.

7/ When all the midi out messages have been edited to exit scroll through the message list until 9 EXIT is

displayed and press YES.

NB: This Function edits the Midi information for the last scene recalled using the Now, Next or Last

button.

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Page 18

Memory menu

Memory – Mem Tog

Internal

ExternalCopy All

Clear All

Mem Tog (Memory Toggle)This allows you to swap from the memory you are currently working on to other. For example if you are

working on Internal memory mode choosing YES to Mem Tog will switch over to External memory.

InternalThis setting sets the system operation to operate with the central control unit’s internal memory.

ExternalThis setting sets the system operation to operate with the RAM card memory .

Copy allThis function copies the data to and from the RAM card.

If INTERNAL memory is active, the data will be copied from internal memory to the RAM card.

If EXTERNAL memory is active, the data will be copied from the RAM card to the internalmemory.

Clear all

This function clears the data in the memory or RAM card.

If INTERNAL memory is active, the data will be cleared from internal memory .

If EXTERNAL memory is active, the data will be cleared from the RAM card.

WARNING!

Use this function with care! Although future software releases may feature an UNDO function, the

current software does not. Once erased there is no way to retrieve the data unless you have saved it to a

RAM card which has been kept somewhere safe.

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Alt Scene Buttons A1 and A2

These buttons allow the recall of a scene assigned to the switch with a single button push. To assign a

scene to either ALT1 or ALT2, recall the scene you wish to assign. Press the STORE button, the right

hand screen will now read either NEW or OVERSTORE. Press the ALT button that you wish to assign

the scene to, the screen will read OK. The scene will now be recalled when ever that ALT button ispressed. To place a different scene to the button follow the above procedure and the new scene will

automatically be overstored to the ALT button pressed.

Using the system - general hints and tips.

Setting up a console can be a laborious process, setting it up separately for multiple scenes could

be worse!

Make use of the facilities to minimise the work. If you have already programmed in a scene which

is similar to the one you wish to create, RECALL it, make the required alterations then dial up the numberof the new scene you wish to create and STORE it.

Backing up.

At the end of a rehearsal session it is good practice to save the data entered to the RAM card. By

using three or four RAM cards and rotating them you will always have the last three or four sessions

saved ready to be reloaded in an emergency.

xl4-b-op-man

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