File: Alpha2-8SealedTeamSix120Watts.bb6 Alpha 2-8 SIx Driver Array in a Sealed Box By Jerry McNutt , Eminence Speaker LLC 120 Watts Power Handling. Use above 300 Hz. Make into a stick and put it on top of a 15" or a pair of 12" woofers. Box Properties --Description-- Name: Type: Closed Box Shape: Prism, square --Box Parameters-- Vb = 0.0948 cu.ft V(total) = 0.105 cu.ft Qtc = 0.688 QL = 20 F3 = 220 Hz Fill = heavy A B C --External Dimensions-- A = 22.34 in B = 4.557 in C = 3.403 in --Internal Dimensions-- A = 21.34 in B = 3.557 in C = 2.403 in --Wall Thickness-- Front = 0.5 in Side = 0.5 in Driver Properties --Description-- Name: Alpha 2-8 Type: Standard one-way driver Company: Eminence Speaker LLC Comment: 2" Full Range Driver --Configuration-- No. of Drivers = 6 Mounting = Standard Wiring = Series-Parallel Drivers sum coherently = Yes --Mechanical Parameters-- Fs = 185.6 Hz Qms = 3.06 Vas = 0.18 liters [1.08] Cms = 0.84 mm/N [0.14] Mms = 0.88 g [5.28] Rms = 0.33 kg/s [1.98] Xmax = 1.7 mm Xmech = 2.2 mm P-Dia = 39.55 mm [96.87] Sd = 12.37 sq.cm [74.22] P-Vd = 0.00209 liters [0.0125] --Electrical Parameters-- Qes = 0.94 Re = 6.4 ohms [4.267] Le = 0.13 mH [0.0867] Z = 8 ohms [5.333] BL = 2.64 Tm [5.287] Pe = 20 watts [120] --Electromech. Parameters-- Qts = 0.719 no = 0.118 % [0.709] 1-W SPL = 82.87 dB [90.65] 2.83-V SPL = 83.84 dB [93.38]
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File: Alpha2-8SealedTeamSix120Watts.bb6
Alpha 2-8 SIx Driver Array in a Sealed BoxBy Jerry McNutt, Eminence Speaker LLC120 Watts Power Handling. Use above 300 Hz.Make into a stick and put it on top of a 15" or a pair of 12" woofers.
Box Properties--Description--Name: Type: Closed BoxShape: Prism, square--Box Parameters--Vb = 0.0948 cu.ftV(total) = 0.105 cu.ftQtc = 0.688QL = 20F3 = 220 HzFill = heavy
A
B C
--External Dimensions--A = 22.34 inB = 4.557 inC = 3.403 in--Internal Dimensions--A = 21.34 inB = 3.557 inC = 2.403 in--Wall Thickness--Front = 0.5 inSide = 0.5 in
Driver Properties--Description--Name: Alpha 2-8Type: Standard one-way driverCompany: Eminence Speaker LLCComment: 2" Full Range Driver--Configuration--No. of Drivers = 6Mounting = StandardWiring = Series-ParallelDrivers sum coherently = Yes--Mechanical Parameters--Fs = 185.6 HzQms = 3.06Vas = 0.18 liters [1.08]Cms = 0.84 mm/N [0.14]Mms = 0.88 g [5.28]Rms = 0.33 kg/s [1.98]Xmax = 1.7 mmXmech = 2.2 mmP-Dia = 39.55 mm [96.87]Sd = 12.37 sq.cm [74.22]P-Vd = 0.00209 liters [0.0125]--Electrical Parameters--Qes = 0.94Re = 6.4 ohms [4.267]Le = 0.13 mH [0.0867]Z = 8 ohms [5.333]BL = 2.64 Tm [5.287]Pe = 20 watts [120]--Electromech. Parameters--Qts = 0.719no = 0.118 % [0.709]1-W SPL = 82.87 dB [90.65]2.83-V SPL = 83.84 dB [93.38]
Page Two -- Alpha2-8SealedTeamSix120Watts.bb6
Box Parts
top & bottom
front & back sides
c
b
d
a
c
Box Shape: Square Prism1 Top, 1 Bottom: depth (c) = 3.403 in width (b) = 4.557, thickness = 0.5 in1 Front, 1 Back: height (a) = 21.34 in width (d) = 3.557, thickness = 0.5 in2 Sides: height (a) = 21.34 in depth (c) = 3.403, thickness = 0.5 in
--Driver Mounting-- Mounting: Flush Aim: All drivers face same direction
Page Three -- Alpha2-8SealedTeamSix120Watts.bb6
Wiring Diagram
Alpha 2-8
Page Four -- Alpha2-8SealedTeamSix120Watts.bb6
Normalized Amplitude Response (dB-SPL/Hz) Eminence Designer
dB
6
0
-6
-12
-18
-24
-30
-36
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Custom Amplitude Response (dB-SPL/Hz at 1 m) with 120 watts Eminence Designer
dB
118
112
106
100
94
88
82
76
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Maximum Acoustic Power (dB-SPL/Hz at 1 m) Eminence Designer
dB
117
111
105
99
93
87
81
75
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Page Five -- Alpha2-8SealedTeamSix120Watts.bb6
Maximum Electric Input Power (W/Hz) Eminence Designer
watts
200
100
20
10
2
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Cone Displacement (mm/Hz) with 120 watts Eminence Designer
mm
16
14
12
10
8
6
4
2
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
System Impedance (ohms/Hz) Eminence Designer
ohms
80
70
60
50
40
30
20
10
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
File: Alpha2-8StraightSixVented120Watts.bb6
Custom Vented Box DesignBy Matt Marcum, Eminence Speaker LLC120 Watts Power Handling. Use steep high pass filter at 200 Hz.Great column array to pair with a subwoofer.
Box Properties--Description--Name: Alpha2-8StraightSixVented160WattsType: Vented BoxShape: Prism, square--Box Parameters--Vb = 0.0694 cu.ftV(total) = 0.0823 cu.ftFb = 221.8 HzQL = 7F3 = 176.3 HzFill = heavy--Vents--No. of Vents = 2Vent shape = rectangleVent ends = one flushHv = 1 inWv = 3 inLv = 2.5 in
A
BC
--External Dimensions--A = 16.8 inB = 4 inC = 4 in--Internal Dimensions--A = 15.8 inB = 3 inC = 3 in--Wall Thickness--Front = 0.5 inSide = 0.5 in
Driver Properties--Description--Name: Alpha2-8Type: Standard one-way driverCompany: Eminence Speaker LLC--Configuration--No. of Drivers = 6Mounting = StandardWiring = Series-ParallelDrivers sum coherently = Yes--Mechanical Parameters--Fs = 185.6 HzQms = 3.06Vas = 0.18 liters [1.08]Cms = 0.84 mm/N [0.14]Mms = 0.88 g [5.28]Rms = 0.33 kg/s [1.98]Xmax = 1.7 mmXmech = 2.55 mmP-Dia = 39.55 mm [96.88]Sd = 12.37 sq.cm [74.22]P-Vd = 0.00209 liters [0.0125]--Electrical Parameters--Qes = 0.94Re = 6.4 ohms [4.267]Le = 0.13 mH [0.0867]Z = 8 ohms [5.333]BL = 2.64 Tm [5.287]Pe = 20 watts [120]--Electromech. Parameters--Qts = 0.719no = 0.118 % [0.708]1-W SPL = 82.87 dB [90.65]2.83-V SPL = 83.84 dB [93.38]
Page Two -- Alpha2-8StraightSixVented120Watts.bb6
Box Parts
top & bottom
front & back sides
c
b
d
a
c
Box Shape: Square Prism1 Top, 1 Bottom: depth (c) = 4 in width (b) = 4, thickness = 0.5 in1 Front, 1 Back: height (a) = 15.8 in width (d) = 3, thickness = 0.5 in2 Sides: height (a) = 15.8 in depth (c) = 4, thickness = 0.5 in
--Vent Parts--2 Tops, 2 Bottoms: width (e) = 3, length (h) = 2.5 in thickness = 0.125 in4 Sides: height (g) = 1.25, length (h) = 2.5 in thickness = 0.125 in
--Driver Mounting-- Mounting: Flush Aim: All drivers face same direction
e
g
h
h
vent
Page Three -- Alpha2-8StraightSixVented120Watts.bb6
Wiring Diagram
Alpha2-8
Page Four -- Alpha2-8StraightSixVented120Watts.bb6
Normalized Amplitude Response (dB-SPL/Hz) Eminence Designer
dB
6
0
-6
-12
-18
-24
-30
-36
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Custom Amplitude Response (dB-SPL/Hz at 1 m) with 120 watts Eminence Designer
dB
118
112
106
100
94
88
82
76
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Maximum Acoustic Power (dB-SPL/Hz at 1 m) Eminence Designer
dB
117
111
105
99
93
87
81
75
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Page Five -- Alpha2-8StraightSixVented120Watts.bb6
Maximum Electric Input Power (W/Hz) Eminence Designer
watts
200
100
20
10
2
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Cone Displacement (mm/Hz) with 120 watts Eminence Designermm
16
14
12
10
8
6
4
2
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Vent Air Velocity ( m/sec/Hz) with 120 watts Eminence Designerm/s
48
42
36
30
24
18
12
6
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Page Six -- Alpha2-8StraightSixVented120Watts.bb6
System Impedance (ohms/Hz) Eminence Designerohms
80
70
60
50
40
30
20
10
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Phase Response (deg/Hz) Eminence Designerdeg
90
0
-90
±180
90
0
-90
±1805 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Group Delay (msec/Hz) Eminence Designermsec
24
20
16
12
8
4
0
-4
-8
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
File: Alpha2-8GreatEightSealed160Watts.bb6
Alpha 2-8 Eight Driver Array In Sealed BoxBy Jerry McNutt, Eminence Speaker LLC160 Watts Power Handling. Use above 300 Hz.Make into a stick and put it on top of a 15" or a pair of 12" woofers.
Box Properties--Description--Name: Type: Closed BoxShape: Prism, square--Box Parameters--Vb = 0.141 cu.ftV(total) = 0.155 cu.ftQtc = 0.681QL = 20F3 = 219.6 HzFill = heavy
A
BC
--External Dimensions--A = 22.34 inB = 4.557 inC = 4.522 in--Internal Dimensions--A = 21.34 inB = 3.557 inC = 3.522 in--Wall Thickness--Front = 0.5 inSide = 0.5 in
Driver Properties--Description--Name: Alpha 2-8Type: Standard one-way driverCompany: Eminence Speaker LLCComment: 2" Full Range Driver--Configuration--No. of Drivers = 8Mounting = StandardWiring = Series-ParallelDrivers sum coherently = Yes--Mechanical Parameters--Fs = 185.6 HzQms = 3.06Vas = 0.18 liters [1.44]Cms = 0.84 mm/N [0.105]Mms = 0.88 g [7.04]Rms = 0.33 kg/s [2.64]Xmax = 1.7 mmXmech = 2.2 mmP-Dia = 39.55 mm [111.9]Sd = 12.37 sq.cm [98.96]P-Vd = 0.00209 liters [0.0167]--Electrical Parameters--Qes = 0.94Re = 6.4 ohms [3.2]Le = 0.13 mH [0.065]Z = 8 ohms [4]BL = 2.64 Tm [5.287]Pe = 20 watts [160]--Electromech. Parameters--Qts = 0.719no = 0.118 % [0.945]1-W SPL = 82.87 dB [91.9]2.83-V SPL = 83.84 dB [95.88]
Page Two -- Alpha2-8GreatEightSealed160Watts.bb6
Box Parts
top & bottom
front & back sides
c
b
d
a
c
Box Shape: Square Prism1 Top, 1 Bottom: depth (c) = 4.522 in width (b) = 4.557, thickness = 0.5 in1 Front, 1 Back: height (a) = 21.34 in width (d) = 3.557, thickness = 0.5 in2 Sides: height (a) = 21.34 in depth (c) = 4.522, thickness = 0.5 in
--Driver Mounting-- Mounting: Flush Aim: All drivers face same direction
Page Three -- Alpha2-8GreatEightSealed160Watts.bb6
Wiring Diagram
Alpha 2-8
Page Four -- Alpha2-8GreatEightSealed160Watts.bb6
Normalized Amplitude Response (dB-SPL/Hz) Eminence Designer
dB
6
0
-6
-12
-18
-24
-30
-36
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Custom Amplitude Response (dB-SPL/Hz at 1 m) with 160 watts Eminence Designer
dB
121
115
109
103
97
91
85
79
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Maximum Acoustic Power (dB-SPL/Hz at 1 m) Eminence Designer
dB
120
114
108
102
96
90
84
78
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Page Five -- Alpha2-8GreatEightSealed160Watts.bb6
Maximum Electric Input Power (W/Hz) Eminence Designer
watts
200
100
20
10
2
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Cone Displacement (mm/Hz) with 160 watts Eminence Designer
mm
16
14
12
10
8
6
4
2
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
System Impedance (ohms/Hz) Eminence Designer
ohms
80
70
60
50
40
30
20
10
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
File: Alpha2vented.bb6
Custom Vented Box DesignBy Matt Marcum, Eminence Speaker LLC160 Watts Power Handling. Use steep high pass filter at 200 Hz.Great column array to pair with a subwoofer.
Box Properties--Description--Name: Alpha2-8GreatEightVented160WattsType: Vented BoxShape: Prism, square--Box Parameters--Vb = 0.0945 cu.ftV(total) = 0.106 cu.ftFb = 202.3 HzQL = 7F3 = 160.7 HzFill = heavy--Vents--No. of Vents = 2Vent shape = rectangleVent ends = one flushHv = 1 inWv = 3 inLv = 2 in
A
BC
--External Dimensions--A = 21.4 inB = 4 inC = 4 in--Internal Dimensions--A = 20.4 inB = 3 inC = 3 in--Wall Thickness--Front = 0.5 inSide = 0.5 in
Driver Properties--Description--Name: Alpha2-8Type: Standard one-way driverCompany: Eminence Speaker LLC--Configuration--No. of Drivers = 8Mounting = StandardWiring = Series-ParallelDrivers sum coherently = Yes--Mechanical Parameters--Fs = 185.6 HzQms = 3.06Vas = 0.18 liters [1.44]Cms = 0.84 mm/N [0.105]Mms = 0.88 g [7.04]Rms = 0.33 kg/s [2.64]Xmax = 1.7 mmXmech = 2.55 mmP-Dia = 39.55 mm [111.9]Sd = 12.37 sq.cm [98.96]P-Vd = 0.00209 liters [0.0167]--Electrical Parameters--Qes = 0.94Re = 6.4 ohms [3.2]Le = 0.13 mH [0.065]Z = 8 ohms [4]BL = 2.64 Tm [5.287]Pe = 20 watts [160]--Electromech. Parameters--Qts = 0.719no = 0.118 % [0.944]1-W SPL = 82.87 dB [91.9]2.83-V SPL = 83.84 dB [95.88]
Page Two -- Alpha2vented.bb6
Box Parts
top & bottom
front & back sides
c
b
d
a
c
Box Shape: Square Prism1 Top, 1 Bottom: depth (c) = 4 in width (b) = 4, thickness = 0.5 in1 Front, 1 Back: height (a) = 20.4 in width (d) = 3, thickness = 0.5 in2 Sides: height (a) = 20.4 in depth (c) = 4, thickness = 0.5 in
--Vent Parts--2 Tops, 2 Bottoms: width (e) = 3, length (h) = 2 in thickness = 0.125 in4 Sides: height (g) = 1.25, length (h) = 2 in thickness = 0.125 in
--Driver Mounting-- Mounting: Flush Aim: All drivers face same direction
e
g
h
h
vent
Page Three -- Alpha2vented.bb6
Wiring Diagram
Alpha2-8
Page Four -- Alpha2vented.bb6
Normalized Amplitude Response (dB-SPL/Hz) Eminence Designer
dB
6
0
-6
-12
-18
-24
-30
-36
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Custom Amplitude Response (dB-SPL/Hz at 1 m) with 160 watts Eminence Designer
dB
121
115
109
103
97
91
85
79
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Maximum Acoustic Power (dB-SPL/Hz at 1 m) Eminence Designer
dB
120
114
108
102
96
90
84
78
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Page Five -- Alpha2vented.bb6
Maximum Electric Input Power (W/Hz) Eminence Designer
watts
200
100
20
10
2
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Cone Displacement (mm/Hz) with 160 watts Eminence Designermm
16
14
12
10
8
6
4
2
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Vent Air Velocity ( m/sec/Hz) with 160 watts Eminence Designerm/s
48
42
36
30
24
18
12
6
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Page Six -- Alpha2vented.bb6
System Impedance (ohms/Hz) Eminence Designerohms
80
70
60
50
40
30
20
10
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Phase Response (deg/Hz) Eminence Designerdeg
90
0
-90
±180
90
0
-90
±1805 Hz 10 50 100 500 1 K 5 K 10 K 20 K
Group Delay (msec/Hz) Eminence Designermsec
24
20
16
12
8
4
0
-4
-8
5 Hz 10 50 100 500 1 K 5 K 10 K 20 K
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