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G1 Specifications / Enclosure Recommendations

Model:

G112

G110

G108

Nominal Size:

12"

10"

8"

RMS Power Handling:

200w

200w

200w

Impedance:

4

or Dual 4

4

or Dual 4

4

or Dual 4

Frequency Response:

20-350Hz

24-350Hz

30-350Hz

(+/-3dB in car)

Mounting Cutout Diameter:

11 

3

16

"

1

4

"

7"

(283mm)

(235mm)

(178mm)

Mounting Depth:

5"

3

4

"

1

4

"

(126mm)

(120mm)

(107mm)

Recommended Sealed

1.0 ft

3

0.5 ft

3

0.3 ft

3

Enclosure Volume*:

(28.3L)

(14.2L)

(8.5L)

Q-Tune

†: (HP & Q Setting)

[email protected] 

[email protected]

[email protected]

Recommended Ported

2.0 ft

3

1.3 ft

3

0.8ft

3

Enclosure Volume*:

(56.6L)

(36.8L)

(22.6L)

Vent Diameter:

4" (10cm)

3" (7.6cm)

2" (5cm)

Vent Length:

13" (33cm)

10" (25cm)

8"(20cm)

Tuning Frequency:

34Hz

36Hz

38Hz

Q-Tune

†: (HP & Q Setting)

[email protected] 

[email protected] 

[email protected]

*Enclosure volumes include basket and port displacement
†Q-Tune

is a feature found on Boston GT Amplifiers 

Single G1 Enclosure Design Example    -    Ported 

Model:

G112"

G110"

G108"

H = Height:

15.5" (39.8cm)

12" (30.5cm)

9" (22.8cm)

W = Width:

16.5" (42.0cm)

13.25" (33.7cm)

12" (30.5cm)

D = Depth:

14" (35.6cm)

14" (35.6cm)

13" (33cm)

P = Port Clearance

*

:

4" (10cm) 

3" (7.6cm)

2" (5cm)

Gross Volume:

2.0 Ft

3

(56.6L)

1.3 Ft

3

(36.8L)

0.8 Ft

3

(22.6L)

Port Diameter:

4" (10cm)

3" (7.6cm)

2" (5cm)

Port Length:

13" (33cm)

10" (25cm)

8" (20cm)

Q-Tune

: (HP & Q)

[email protected]

[email protected]

[email protected]

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 G1 Enclosure Design Example    -    Sealed 

Model:

G112"

G110"

G108"

H = Height:

10.5" (26.7cm)

7.5" (19.1cm)

10" (25cm)

W = Width:

13.0" (33.1cm)

11.0" (28.0cm)

10" (25cm)

D = Depth:

13.0" (33.1cm)

11.0" (28.0cm)

5.5" (14cm)

Gross Volume:

1.0 Ft

3

(28.3L)

0.5 Ft

3

(14.2L)

0.3 Ft

3

(8.5L)

Q-Tune

: (HP & Q)

[email protected]

[email protected]

[email protected]

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.

1

4

2

-0

0

2

4

0

9

-1

D

W

H

D

P

W

H

B

d

6

0

6

-

2

1

-

8

1

-

4

2

-

0

3

-

6

3

-

z

H

5

0

1

0

5

0

0

1

0

0

5

In-Car Response w/ Q-Tune

Enclosure Response

B

d

6

0

6

-

2

1

-

8

1

-

4

2

-

0

3

-

6

3

-

z

H

5

0

1

0

5

0

0

1

0

0

5

In-Car Response w/ Q-Tune

Enclosure Response

SureSet

Fuse Configurations 

G1124 / G1104 / G1084

G11244 / G11044 / G10844

G1 Included Hardware

Model:

G112

G110

G108

Wood Screw M4 x 38mm: 

8

8

8

Note: The SureSet

feature utilizes standard mini 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

G1 Thiele-Small Parameters

Model:

G11244

G1124

G11044

G1104

G10844

G1084

Parallel     Series       

Parallel 

Series

Parallel Series

Fs: (Hz)

26 

26

25

30

30

29

45

45

46

Re: (Ohms)

1.75

7.00

4.06

1.75

7.00

4.06

1.67

6.67

3.45

Qms:

10.4

10.4

7.05

7.57

7.57

8.46

8.8

8.8

8.9

Qes:

0.57

0.57

0.49

0.63

0.63

0.57

0.64

0.64

0.72

Qts:

0.54

0.54

0.46

0.58

0.58

0.53

0.60

0.60

0.67

Vas: (Liters)

112

112

114

38

38

39

11.3

11.3

11.6

Mms: (Grams)

137

137

143

136

136

142

68.5

68.5

62.8

Cms: (µM/Newton)

275

275

275

205

205

205

185

185

190

Xmax: (Mm)

10.5

10.5

10.5

10.5

10.5

10.5

10.5

10.5

10.5

Xmech: (Mm)

22

22

22

22

22

22

18

18

18

Sd: (CM 

2

)

520

520

520

345

345

345

209

209

209

Bl: (Tesla-M)

8.27

16.53 13.81

8.27

16.53 13.81

7.08

14.17 9.34

SPL Eff: (dB @ 1w/1m)

87.4

87.4

87.7

84.0

84.0

84.2

84.0

84.0

84.0

SPL Sen: (dB @ 2.83v)

94.0

88.0

90.6

90.8

84.7

87.1

90.7

84.7

87.6

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