Boston Acoustics Recording Equipment 1000 User Manual

ProSeries 12.5LF  
10.5LF  
8.5LF  
Competitor Series 1500  
1200  
1000  
800  
Generator Series GS1500  
GS1200  
GS1000  
Boston Acoustics Subwoofer  
Installation Manual  
 
Enclosure Recommendations  
The ProSeries and Competitor Series subwoofers are  
designed to deliver optimum performance in small  
sealed enclosures. The Generator Series subwoofers are  
designed for either sealed or ported enclosures. The fol-  
lowing are the recommended enclosure volumes:  
ProSeries  
Competitor Series  
Generator Series  
Sealed Enclosures  
12.5LF 10.5LF 8.5LF 1500  
1200  
1000  
800  
GS1500 GS1200 GS1000  
3
3
3
3
3
3
3
3
3
3
Gross Internal Volume  
-3dB Down Point—In Car  
1.0ft  
0.5ft  
0.3ft  
1.5ft  
1.0ft  
0.5ft  
0.3ft 2.5ft  
20Hz 20Hz  
1.5ft  
.75ft  
20Hz  
0.9  
20Hz  
0.8  
20Hz  
0.6  
20Hz  
1.36  
1.56  
20Hz  
1.03  
1.12  
20Hz  
0.92  
0.98  
20Hz  
1.38  
1.29  
20Hz  
1.18  
1.09  
System "Q"  
(2)  
(4)  
0.69  
0.73  
1.63  
1.5  
1.1  
0.95  
0.7  
Recommended Enclosure Dimensions (Internal)  
Height  
Width  
Depth  
10.5"  
13.0"  
13.0"  
7.5"  
6.5"  
9.0"  
9.0"  
10"  
16"  
16"  
10.5"  
13.0"  
13.0"  
7.5"  
6.5"  
9.0"  
9.0"  
20"  
16"  
14"  
12"  
12"  
11.0"  
11.0"  
11.0"  
11.0"  
16"  
11"  
13.5"  
9.75"  
Ported Enclosures (Generator Series only)  
Gross Internal Volume  
Tuning Frequency  
GS1500  
GS1200  
GS1000  
3
3
3
2.5ft  
1.5ft  
1.25ft  
35Hz  
4"D  
35Hz  
3"D  
33Hz  
3"D  
Port Diameter  
Port Length  
11"L  
7.3"L  
11"L  
Recommended Enclosure Dimensions (Internal)  
Height  
Width  
Depth  
20"  
16"  
14"  
12"  
14"  
16"  
11.5"  
14"  
13.5"  
3
 
Calculating your enclosure volume:  
Internal dimensions  
Height (inches) x Width (inches) x Depth (inches) = Gross Internal Volume (cubic inches)  
Gross Internal Volume (cubic inches)  
= Gross Internal Volume (cubic feet)  
1728  
or:  
Height (cm) x Width (cm) x Depth (cm)  
= Gross Internal Volume (liters)  
1000  
Conversion Formulas  
1" = 2.54cm  
3
1ft = 28.32 liters  
3
3
1ft = 1,728in  
D
W
Remember to account for material thickness when  
determining external dimensions.  
H
4
 
Building an Enclosure  
Use at least 34-inch MDF to build the enclosure (1-inch is  
preferable). The joints should be liberally glued with car-  
penters wood glue and screwed together with wood  
screws and sealed internally with a bead of silicone rub-  
ber or hot melt glue.  
Drill pilot holes to prevent the wood from splitting and  
tighten the screws as much as possible. Excess glue can  
be wiped off with a damp sponge or paper towel.  
Warning  
It is extremely important to completely seal the enclo-  
sure. Even small leaks can have a dramatic effect on sub-  
woofer performance. Look, listen, and test for leaks at all  
joints, around the subwoofer perimeter, and at the wire  
entrance location.  
Glue  
Screws  
Sealant  
5
 
Locating Subwoofer Enclosure  
in Vehicle  
The placement of the enclosure is one of the most  
important factors concerning installation. As each vehi-  
cles interior acoustics are different, experimentation is  
the key to optimizing performance.  
Hatchbacks/Sport Utility Vehicles  
Locate the enclosure in a rear corner for maximum out-  
put. Experiment with the subwoofers placement.  
Hatchback Installation  
Warning  
Make sure the enclosure is securely mounted in such a  
way as to not shift or fly forward in the event of an acci-  
dent or sudden stop.  
6
 
Sedans  
Provide as clear a path as possible into the cabin by  
venting through a folded-down arm rest, venting through  
the rear deck, or venting through an unused speaker  
opening in the rear deck. Keep any restrictive materials  
such as wood, hard plastic or metal from directly block-  
ing the subwoofer.  
Sedan Installation  
7
 
Wiring  
2 ohm subwoofers  
One 2sub  
Two 2subs, series  
Two 2subs, parallel  
Three 2subs, series  
Four 2subs, series/parallel  
8
 
Wiring  
4 ohm subwoofers  
One 4sub  
Two 4subs, parallel  
Three 4subs, parallel  
Four 4subs, series/parallel  
Four 4subs, parallel  
9
 
ProSeries  
Competitor Series  
Specifications  
12.5LF  
10.5LF  
8.5LF  
1500  
Nominal Size  
12" (30cm)  
11" (280mm)  
10" (25cm)  
8" (20cm)  
15" (38cm)  
1
3
7
Mounting Cutout Diameter  
Mounting Depth—Front Mounted  
Mounting Depth—Rear Mounted  
Recommended Amplifier Power  
Nominal Impedance  
9 ⁄8" (232mm)  
7 ⁄16" (183mm)  
13 ⁄8" (353mm)  
5
3
1
3
5 ⁄8" (143mm)  
4 ⁄4" (121mm)  
4 ⁄16" (104mm)  
7 ⁄4" (197mm)  
3
11  
1
6 ⁄8" (162mm)  
5" (127mm)  
50–1100 watts  
2/4Ω  
4 ⁄16" (119mm)  
8 ⁄4" (210mm)  
50–1200 watts  
50–750 watts  
50–1000 watts  
2/4Ω  
2/4Ω  
2/4Ω  
ProSeries  
Competitor Series  
Theile/Small Parameters  
12.5LF  
(2)  
12.5LF  
10.5LF  
(2)  
10.5LF  
(4)  
8.5LF  
(2)  
8.5LF  
(4)  
1500  
(2)  
1500  
(4)  
(4)  
Resonant Frequency (F )  
30Hz  
84 liters  
2.97ft3  
0.45  
31Hz  
84 liters  
2.97ft3  
0.57  
33Hz  
35 liters  
1.24ft3  
0.44  
34Hz  
35 liters  
1.24ft3  
0.53  
35Hz  
21 liters  
0.74ft3  
0.33  
36Hz  
21 liters  
0.74ft3  
0.40  
34Hz  
35Hz  
s
Equivalent Volume (Vas)  
155 liters 155 liters  
5.47ft3  
0.72  
0.81  
8.3  
5.47ft3  
0.85  
0.97  
8.3  
Total Q (Qts  
Electrical Q (Qes  
Mechanical Q (Qms  
Compliance (Cms  
)
)
0.47  
0.61  
0.47  
0.57  
0.35  
0.42  
)
9.8  
9.6  
8.0  
7.8  
9.0  
9.0  
)
230µm/N 230µm/N 255µm/N 255µm/N 330µm/N 330µm/N  
142µm/N 142µm/N  
Moving Mass (Mms  
Cone Area (Sd)  
)
121g  
117g  
90g  
86g  
63g  
60g  
148g  
145g  
510cm2  
51mm  
1.6Ω  
510cm2  
51mm  
3.1Ω  
315cm2  
51mm  
1.6Ω  
315cm2  
51mm  
3.1Ω  
215cm2  
51mm  
1.6Ω  
215cm2  
51mm  
3.1Ω  
876cm2  
51mm  
1.6Ω  
876cm2  
51mm  
3.2Ω  
Voice Coil Diameter  
Voice Coil DCR (Re)  
Voice Coil Inductance @ 1kHz (Le)  
0.40mH  
8.5mm  
40mm  
0.46  
0.55mH  
8.5mm  
40mm  
0.39  
0.40mH  
8.5mm  
35mm  
0.26  
0.55mH  
8.5mm  
35mm  
0.25  
0.40mH  
8.5mm  
35mm  
0.25  
0.55mH  
8.5mm  
35mm  
0.22  
0.45mH  
5.5mm  
40mm  
0.73  
0.62mH  
5.5mm  
40mm  
0.64  
Linear Excursion—One Way (Xmax  
)
Peak-to-Peak Maximum Excursion  
Reference Efficiency (ηo  
)
We provide Theile/Small Parameters for those interested in  
studying subwoofers further. We do not recommend you use  
computer software to determine enclosure sizes or type.  
While high–end enclosure design software may be useful for  
engineering purposes, it cannot completely predict perform-  
ance in a given vehicle and should not replace a real enclosure  
that has been tested and listened to in a car. Please use our  
recommended enclosures for optimum performance.  
10  
 
Competitor Series (continued)  
Generator Series  
1200  
1000  
800  
GS1500  
GS1200  
10" (25cm)  
GS1000  
12" (30cm)  
11" (280mm)  
10" (25cm)  
8" (20cm)  
10" (25cm)  
10" (25cm)  
3
1
7
3
9 ⁄16" (234mm)  
7 ⁄8" (181mm)  
13 ⁄8" (353mm) 11" (280mm)  
9 ⁄16" (234mm)  
5
3
3
3
6 ⁄8" (169mm)  
6" (153mm)  
5 ⁄8" (137mm)  
6 ⁄4" (172mm)  
5 ⁄4" (146mm)  
5" (127mm)  
1
5
7
1
1
1
7 ⁄8 (181mm)  
6 ⁄8" (169mm)  
5 ⁄8" (150mm)  
7 ⁄4" (185mm)  
6 ⁄4" (159mm)  
5 ⁄2" (140mm)  
50–1000 watts 50–850 watts  
2/42/4Ω  
50–500 watts  
50–500 watts  
50–500 watts  
50–400 watts  
2/4Ω  
2/4Ω  
2/4Ω  
2/4Ω  
Competitor Series (continued)  
Generator Series  
1200  
(2)  
1200  
(4)  
1000  
(2)  
1000  
800  
800  
GS1500  
(2)  
GS1500 GS1200  
GS1200 GS1000 GS1000  
(4)  
(2)  
(4)  
(4)  
(2)  
(4)  
(2)  
(4)  
30Hz  
84 liters  
2.97ft3  
0.45  
31Hz  
84 liters  
2.97ft3  
0.57  
33Hz  
35 liters  
1.24ft3  
0.44  
34Hz  
35 liters  
1.24ft3  
0.53  
35Hz  
21 liters  
0.74ft3  
0.33  
36Hz  
21 liters  
0.74ft3  
0.40  
29Hz  
29Hz  
31Hz  
31Hz  
97 liters  
3.43ft3  
0.71  
33Hz  
37 liters  
1.31ft3  
0.71  
33Hz  
37 liters  
1.31ft3  
0.66  
215 liters 215 liters 97 liters  
7.58ft3  
0.81  
0.9  
7.58ft3  
0.75  
0.84  
7.5  
3.43ft3  
0.76  
0.85  
7.2  
0.47  
0.61  
0.47  
0.57  
0.35  
0.42  
0.79  
0.79  
0.74  
9.8  
9.6  
8.0  
7.8  
9.0  
9.0  
7.6  
7.1  
6.6  
6.7  
230µm/N 230µm/N 255µm/N 255µm/N 330µm/N 330µm/N  
200µm/N 200µm/N 200µm/N 200µm/N 200µm/N 200µm/N  
121g  
117g  
90g  
86g  
63g  
60g  
150g  
147g  
134g  
130g  
118g  
114g  
510cm2  
51mm  
1.6Ω  
510cm2  
51mm  
3.1Ω  
315cm2  
51mm  
1.6Ω  
315cm2  
51mm  
3.1Ω  
215cm2  
51mm  
1.6Ω  
215cm2  
51mm  
3.1Ω  
874.7cm2 874.7cm2 588.4cm2 588.4cm2 365cm2  
365cm2  
51mm  
3.6Ω  
51mm  
1.7Ω  
51mm  
3.6Ω  
51mm  
1.7Ω  
51mm  
3.6Ω  
51mm  
1.7Ω  
0.40mH  
8.5mm  
40mm  
0.46  
0.55mH  
8.5mm  
40mm  
0.39  
0.40mH  
8.5mm  
35mm  
0.26  
0.55mH  
8.5mm  
35mm  
0.25  
0.40mH  
8.5mm  
35mm  
0.25  
0.55mH  
8.5mm  
35mm  
0.22  
0.98mH  
4.4mm  
37mm  
0.56  
1.9mH  
5.3mm  
37mm  
0.63  
0.98mH  
4.4mm  
37mm  
0.32  
1.9mH  
5.3mm  
37mm  
0.36  
0.98mH  
4.4mm  
33mm  
0.16  
1.9mH  
5.3mm  
33mm  
0.18  
11  
 
Boston and Boston Acoustics are  
registered trademarks of Boston  
Acoustics, Inc. ©1999  
300 Jubilee Drive  
Peabody, MA 01960 U.S.A.  
978.538.5000  
Covered by patents issued and/or  
pending.  
42-001034-0  
 

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