G3 Thiele-Small Parameters
Model: G31244 G3124 G31044 G3104
Parallel Series Parallel Series
Fs:(Hz) 31 31 30 35 35 35
Re:(Ohms) 1.68 6.70 3.33 1.69 6.76 3.30
Qms: 10.39 10.39 10.41 10.93 10.93 11.66
Qes: 0.65 0.65 0.79 0.60 0.60 0.70
Qts: 0.62 0.62 0.73 0.57 0.57 0.66
Vas: (Liters) 53 53 57 23 23 23
Mms: (Grams) 186 186 177 150 150 146
Cms: (µM/Newton) 144 144 154 139 139 140
Xmax:(Mm) 14.5 14.5 14.5 14.5 14.5 14.5
Xmech: (Mm) 35.0 35.0 35.0 35.0 35.0 35.0
Sd: (CM 2) 515 515 515 345 345 345
Bl: (Tesla-M) 9.6 19.3 12.0 9.6 19.3 12.3
SPL Eff: (dB @ 1w/1m) 85.6 85.6 85.0 84.0 84.0 83.4
SPL Sen: (dB @ 2.83v) 92.4 86.4 88.8 90.8 84.7 87.3
G3 Specifications/Enclosure Recommendations
Model: G31244 G3124 G31044 G3104
Nominal Size: 12" 12" 10" 10"
RMS Power Handling: 375w 375w 375w 375w
Impedance: Dual 4
Ω
Single 4
Ω
Dual 4
Ω
Single 4
Ω
Frequency Response: 20-350Hz 20-350Hz 24-350Hz 24-350Hz
(+/-3dB in car)
Mounting Cutout Diameter: 11 3/16" 11 3/16" 9 1/4" 9 1/4"
(283mm) (283mm) (235mm) (235mm)
Mounting Depth: 6 9/16" 6 9/16" 6 3/8" 6 3/8"
(166mm) (166mm) (161mm) (161mm)
Recommended Sealed 1.0 ft31.0 ft30.5 ft30.5 ft3
Enclosure Volume*: (28.3L) (28.3L) (14.2L) (14.2L)
Q-Tune™†:(HP & Q Set ting) 27Hz@0.7 27Hz@0.7 30Hz@0.7 30Hz@0.7
Recommended Ported 2.0 ft32.0 ft31.3 ft31.3 ft3
Enclosure Volume*: (56.6L) (56.6L) (36.8L) (36.8L)
Vent Di amete r: 4" (10cm) 4" (10cm) 3" (7.6cm) 3" (7.6cm)
Vent Le ngth: 13" (33cm) 13" (33cm) 10" (25cm) 10"(25cm)
Tuning Frequency: 34Hz 34Hz 36Hz 36Hz
Q-Tune™†:(HP & Q Set ting) 34Hz@0.7 34Hz@0.7 36Hz@0.9 36Hz@0.9
*Enclosure volumes include basket and port displacement
†Q-Tune™is a feature found on Boston GT Amplifiers
Single G3 Enclosure Design Example - Ported
Model: G312" G310"
H=Height: 15.5" (39.8cm) 12" (30.5cm)
W=Width: 16.5" (42.0cm) 13.25" (33.7cm)
D=Depth: 14" (35.6cm) 14" (35.6cm)
P= Port Clearance*:4" (10cm) 3" (7.6cm)
Gross Volume: 2.0 Ft3(56.6L) 1.3 Ft3(36.8L)
Port Diameter: 4" (10cm) 3" (7.6cm)
Port Length: 13" (33cm) 10" (25cm)
Q-Tune™†:(HP & Q) 34Hz@0.707 36Hz@0.9
Enclosure dimensions are internal and include basket and port displacement
This enclosure size is an example and these dimensions can be modified provided that the
exact internal volume is retained and that there is adequate space behind the vent (diameter
of port from the back and side walls)
3⁄4-inch thick M.D.F. is recommended as a minimum
*Recommended distance from sides and back walls of enclosure
†Q-Tune™ is a feature found on Boston GT Amplifiers
Single G3 Enclosure Design Example - Sealed
Model: G312" G310"
H=Height: 10.5" (26.7cm) 7.5" (19.1cm)
W=Width: 13.0" (33.1cm) 11.0" (28.0cm)
D=Depth: 13.0" (33.1cm) 11.0" (28.0cm)
Gross Volume: 1.0 Ft3(28.3L) 0.5 Ft3(14.2L)
Q-Tune™†:(HP & Q) 27Hz@0.707 30Hz@0.707
Enclosure dimensions are internal and include basket displacement
This enclosure size is an example and these dimensions can be modified provided that the
exact internal volume is retained
3⁄4-inch thick M.D.F. is recommended as a minimum
†Q-Tune™is a feature found on Boston GT Amplifiers
Boston Acoustics, Inc. 300 Jubilee Drive, Peabody, MA 01960 USA
T:978.538.5000 F: 978.538.5100 W:bostonacoustics.com
Q-Tune and SureSet are trademarks and Boston, Boston Acoustics, and the Boston Acoustics logo
are registered trademarks of Boston Acoustics, Inc.
Specifications are subject to change without notice. © 2007 Boston Acoustics, Inc.
All rights reserved. Covered by patents issued and/or pending.
142-002598-0
D
W
H
D
P
W
H
B
d
6
0
6
-
21
-
81
-
42
-
03-
63-
z
H
50
10
50
0
10
0
5
In-Car Response w/Q-Tune
™
Enclosure Response
B
d
6
0
6
-
21
-
81
-
42-
03
-
63
-
zH
501 05 001 005
In-Car Response w/Q-Tune
™
Enclosure Response
SureSet™Fuse Configurations
G3124 / G3104
G31244 / G31044
G3 Included Hardware
Model: G31244 G3124 G31044 G3104
7.5-Amp Fuse* : 2222
Wood Screw M4 x 38mm: 8 8 8 8
2.5mm Hex Key: 1 1 1 1
*Installed on Subwoofer
Note: The SureSet™feature utilizes standard automotive ATC fuses to
select between series or parallel voice-coil operation (DVC only). The
fuses also provide voice-coil protection under transient conditions such
as accidental momentary overdrive. The fuses will not protect against
voice-coil failure resulting from long term high power abuse.
2-ohm operation 8-ohm operation 4-ohm