Jehnert 75156 EBA Engl Web

8/18/2019 Jehnert 75156 EBA Engl Web

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Packing unit Check list

door panel, covered (right / left) 2

Speaker grill, covered (right / left) 2

Tweeter 26 mm 2

Midrange 100 mm Q (each mounted on the panel with 4 Sheet metal-screws) 2

Subwoofer 160 mm (each mounted on the panel with 2 Sheet metal-screws) 8

Crossover (right / left) 2

standart cables for subwoofer (right / left) je 1

Hardware bag:

Flat head screws, M 4 x 20 2



Hex nut M 4 22

Washer Ø 12mm 2

Washer Ø 20mm 22

Washer Ø 20mm as spacer for Velcro fastener 4

Sheet metal screws, black 3,9x13 (f. subwoofer) 16

Sheet metal screws, black 3,5x13 (f. crossover) 4

Velcro strip à 2,5 cm (reserve) 4

Preassembled hardware:

Velcro fastener plus strips 18

Sheet metal screws, black 3,9x13 (f. subwoofer) 16

Sheet metal screws, black 3,5x13 (8xMR+18xVelcro. ) 26


Flat head screws, M 4 x 50 2The product was carefully packed and checked for its completeness. If you find anything missing, damaged or

defective, please notice our guarantee services on the back of these assembly instructions.

Hardware bag:

Packing list 75156

Hardware bag: Hardware bag:

75156 - Audi A 4 - 2 - © JEHNERT SOUND DESIGN

Hardware bag: Hardware bag: Hardware bag: Hardware bag: Hardware bag: Hardware bag: Hardware bag: Hardware bag: Hardware bag: Hardware bag: Hardware bag: Hardware bag:


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1.1. Roll down window completely.

1.2. Unscrew the head cap screws at the inner door latch lever (A) and pull away upward. Remove the head cap screws D1 + D2 underneath.

1.3. Remove the head cap srews C1 + C2 from both sides of the door lining.

1.4. Carefully squeeze the door panel out of the sealing above and simultaneously move it horizontally and forward away from the inner door metal.

1.5. Unlook door lock Bowden pull wire.

1.6. Pull off the switch of the electric window control.1.7. Unplug the original cables and remove the original subwoofer.

A

1 . Disassembly of the door lining


C1

D1

D2

C2


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2.1. After dismantling of the door lining, dismount the metal fastening ring of the original tweeter with a pincer. Remove the original tweeter.

2.2. cut the edge on the adapter-flange of the tweeter with a side cutting plier.

2.3. Insert the Jehnert-tweeter precisely and click in the metal fastening ring with a pincer.

2.4. Precable the tweeter (measure up the length of the cable up to the crossover in the door build)

2 . Installation tweeter


original mount of tweeter

metal ring for fastening

the tweeter


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fig.2: lower edge of panel

75156 - Audi A 4 - 5- © JEHNERT SOUND DESIGN

3 . Panel alignment

3.1. Place the door lining on a plane surface.

3.2. Dismount the loudspeakers attached to the panel for transport protection. Retain the screws for later assembly.

3.3. Place the panel without loudspeakers and grill on the door lining and align it:

Reference points for fitting:

Only precise alignment of the panel with the door

lining warrants optimal fit.

Reference line 1: the lower edge of the panel is parallel

to the lower edge of the door lining. (see fig.2)

Reference line 2: the front edge of the panel must be inline with

the design line of the door lining. end of panel is in line with the door lining

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Design line of the door lining

reference point 2: panel edge and lateral edge of the design line are in line

reference point 1: lower edge of panel is parallel to the lower edge of the door lining


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1. Use the precisely aligned panel as pattern for theposition of the fastening points(fig. 1-11).

2. Use a thin awl to set the marks of all fastening points

3. Mark the cut-outs for the loudspeakers on the door lining.

4. Remove the panel and mark the fastening points.

5. Cut out the cut-outs for the loudspeakers (see fig.):

6. Use a 6 mm drill for the screw holes at the marked fastening points.

7. Screw the 11 included M 4-screws. Affix the door panel to the door lining by turning the screws hand tight (see fig below)

Secure all screws with washers and nuts.

8. Check again for precise fit and tighten screws.

All cutting edges of the panelmust fit to the door linings snugly all around without gap.

1. Use the precisely aligned panel as pattern for theposition of the fastening points(fig. 1-11).

2. Use a thin awl to set the marks of all fastening points

3. Mark the cut-outs for the loudspeakers on the door lining.

4. Remove the panel and mark the fastening points.

5. Cut out the cut-outs for the loudspeakers (see fig.):

6. Use a 6 mm drill for the screw holes at the marked fastening points.

7. Screw the 11 included M 4-screws. Affix the door panel to the door lining by turning the screws hand tight (see fig below)

Secure all screws with washers and nuts.

8. Check again for precise fit and tighten screws.

All cutting edges of the panelmust fit to the door linings snugly all around without gap.

fastening points of the door panel

4. Handling of door lining / installation of the door panel


Cut-outs door lining

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M 4 x 30

M 4 x 20

M 4 x 30

M 4 x 30

M 4 x 30

M 4 x 40M 4 x 40M 4 x 30

M 4 x 40

911 6 7

4 3

1

10 8 5 2


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5. Installation of loudspeaker cables

Loudspeaker cable into the doors:

5.1. carefully remove the moisture protection foil 5.2. install cables:

Lead 1 speaker cable (1,5 - 4 mm 2) from amplifier into the door. (mount of crossover circuit: door panel) - see page 10

5.3. reinstall the moisture protection foil



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6. Insulation of the car lining

Insulation of the car lining or door panel is not necessary.

6. Insulation of the car lining

Insulation of the car lining or door panel is not necessary.

Important tip:

Preventive measurements against vibration noise:

- by knocking on the car door, vibrations caused by mechanic parts (e.g. Bowden pull wire etc. )

and wiring harness may be found out. Cover these parts with foamed material, felt or something like that

- cut off overlapping cable tie (rattle noise)

- adhere felt or foamed material under the original wiring harness

- asphalt mat instead of the moisture protection foil


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7. Installation of the door lining onto car door

7.1. Put in the door lining in the sealing above.

7.2. Fit the door lining in contrary order (described on page 3).

7.3. Cut (like a U) the moisture protection foil and stabilize

the edges of the foil against vibrations.

(for example with packing tape)



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8. Crossover circuit - Speaker connection

8.1. precable crossovers - see fig. page 11.

8.2. Insert the crossover in the hollow space between door build and door lining

mount of crossover•

between the two front and rear subwoofers• vertically, coil down, connection in direction of the

rear subwoofers• fasten sheet bar with 2 sheet metal screws 3,9x13 onto the door lining

8.3. Insert subwoofer and midrange and connect all loudspeakers

with the included standard cables for subwoofer to the crossover circuit:

parallel wiring see diagram on page 11.

Notice: You should check the polarity of all subwoofers before connecting them to the crossover circuit

with a 9 volt battery:

pole of the crossover circuit input to of a 9 Volt battery


All subwoofers must move uniformly!

Wrong polarity of a subwoofer can totally

equalize the bass sound!

8. Crossover circuit - Speaker connection

8.1. precable crossovers - see fig. page 11.

8.2. Insert the crossover in the hollow space between door build and door lining

mount of crossover•

between the two front and rear subwoofers• vertically, coil down, connection in direction of the

rear subwoofers• fasten sheet bar with 2 sheet metal screws 3,9x13 onto the door lining

8.3. Insert subwoofer and midrange and connect all loudspeakers

with the included standard cables for subwoofer to the crossover circuit:

parallel wiring see diagram on page 11.

Notice: You should check the polarity of all subwoofers before connecting them to the crossover circuit

with a 9 volt battery:



All subwoofers must move uniformly!

Wrong polarity of a subwoofer can totally

equalize the bass sound!

IMPORTANT!

installation of crossover

vertically, coil down connection

line in direction of the back

subwoofers


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You should check the polarity of all woofers after havingconnected them to the crossover circuit with a 9 volt battery(input cable on the side of the amplier).


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Loudspeaker wiring diagram

Connect all loudspeakers and crossover circuits:

Loudspeaker wiring diagram

Connect all loudspeakers and crossover circuits:

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Circuit diagram of 3-way crossover / 4x subwoofer

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tweeter subwoofer

Sound Sound D E S I G N

JEHNERT

midrange i n p u t

3-way crossover circuit

Audi A 4 - 75156

= s e t o f c a b l e s s u p p l i e d w i t h

a m p l i f i e r

f r o m2 0 0 W a t t R M S / 4 O h m

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Removing the grills: The Velcro fasteners stick together very strongly!The grills can be removed anytime by carefully lifting them off.Please, avoid any way of forceful yanking at the grills.

It could break!

9.3.

9.2. Our Tip: If the panel cannot be pressed on completely at some points. . .

Cause: the special form at these points and the result ing differences inmaterial cross section of the grill.

Solution: the distance can be levelled out with spacers 3 under theVelcro disc.

(Spacers included with the screw kit)

9.1. Precisely align and carefully press grill into the Velcro fasteners.

The Velcro fastener makes a crackling sound when it is closed correctly.


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9. Installation of the speaker ’ s grill:

grill

2 self-adhesive Velcro-strip

1 Velcro fastener

3 Washer M4 ø 20 as spacer

doorpanel


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T e c h n i c a l i n f o r m a t i o n

Equipment: electric window control

Model/ year : Sedan / Avant, models from 1994

Insulation: Insulation not necessary

Note about setting: To obtain optimal stereoscopic sound, all settingson the radio (bass, treble, loudness etc) should be

set to zero or neutral.

Recommendedamplif ier power : from 2x 200 - 360 Watt RMS / 4 Ohm

Metal cutwork : not necessary

Cut-outs for loudspeaker/ 4 x 144mm (max.outer dimensions subwoofer 165 mm)each side (max.installation depth subwoofer 65 mm)

Euro-Norm-standard basket ø 6“ made to fit 1 x 92mm (max.outer dimensions midrange 100 mm)

(max.installation depth midrange 60 mm)

Sound-System: 3-ways 4 x 160 mm subwoofer/ side

1 x 100 mm midrange / side 1 x 26 mm tweeter / side car-customized crossover network

max.continuous Watt/RMS: 2 x 300/500Watt car specific frequenzy range: 48-22.000 Hz

Total impedance: 4 Ohm

Time for Installation car hifi-specialist: 3 hours

We reserve the right to make technical changes, as well as development.


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Steffen KretzschmarSaddlery / Completion


Technical questions Hotline: 0049-711-77 97 87-87

We thank you for your support!

Mirko SchwarzDevelopment

It is our pleasure to help you!

Dear customer,

We have taken great care to explain the procedures in our installation instructionsmore detailed and “step by step”.

Your tips and suggestions help us for the future to eliminate uncertainties andmisinterpretation. Therefore, please inform us. what you would like to be improved

or what we should still change.

Marc SitterExport / Service

Marc SitterExport / Service

The following notes serve to help troubleshoot and eliminate faults or malfunctionson your own. If the following measures are not effective, please call us.

What can it be if ... possible cause/ solution

..it doesn’t sound right. wrong polarity on the subwoofers ( page 10) crosover circuit attached wrong ( page 11)

Doorlining and moisture protection foil not cut out ( page 5+10)

amplifier doesn’t have enough power( page 13)

amplifier connection

...it doesn’t fit correctly. door panel customization ( page 8)

installation of the panels on the door lining (page 9)

.....grills do not hold. observe notes on page 12!

vibrations insulation, see notes on page 7

Self-help and fault diagnosis

Technical questions: Hotline 00 49 71 58 / 9 56 99-0

The following notes serve to help troubleshoot and eliminate faults or malfunctionson your own. If the following measures are not effective, please call us.

What can it be if ... possible cause/ solution

..it doesn’t sound right. wrong polarity on the subwoofers ( page 10) crosover circuit attached wrong ( page 11)

Doorlining and moisture protection foil not cut out ( page 5+10)

amplifier doesn’t have enough power( page 13)

amplifier connection

...it doesn’t fit correctly. door panel customization ( page 8)

installation of the panels on the door lining (page 9)

.....grills do not hold. observe notes on page 12!

vibrations insulation, see notes on page 7

Self-help and fault diagnosis


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G u a r a n t e e

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2001/by.AJ/FH - 15 -

We grant a manufacturers guarantee of 2 years starting from the date of purchaseof the door panels or sound system from the dealer.

Within this guarantee period to our choice we either repair or replace free of charge all defects due to material or workmanship.

Exempt from this guarantee are damages due to improper use, wear and tear ordamages which have to be led back on wear or interventions by third parties.The guarantee does not cover subsequent damages or such defects that onlyinsignificantly impair the value or the usability of the panels/sound system.The guarantee does not cover damages due to external influences.

Panels with additional or wrong assembly drill holes cannot be returned. These are damages to the panel which cannot be repaired again.

Jehnert 75156 EBA Engl Web

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