2./4. 2./4. 2./4. 2./4. 2./4. Competitor Series (continued) Generator Series 1200 1200 1000 1000 800 800 GS1500 GS1500 GS1200 GS1200 GS1000 GS1000 (2.) (4.) (2.) (4.) (2.) (4.) (2.) (4.) (2.) (4.) (2.) (4.) 30Hz 31Hz 33Hz 34Hz 35Hz 36Hz 29Hz 29Hz 31Hz 31Hz 33Hz 33Hz 84 liters 84 liters 35 liters 35 liters 21 liters 21 liters 215 liters 215 liters 97 liters 97 liters 37 liters 37 liters 2.97ft3 2.97ft3 1.24ft3 1.24ft3 0.74ft3 0.74ft3 7.58ft3 7.58ft3 3.43ft3 3.43ft3 1.31ft3 1.31ft3 0.45 0.57 0.44

The following are the recommended enclosure volumes: Sealed Enclosures ProSeries 12.5LF 10.5LF 8.5LF Competitor Series 1500 1200 1000 800 Generator Series GS1500 GS1200 GS1000 Gross Internal Volume 1.0ft3 0.5ft3 0.3ft3 1.5ft3 1.0ft3 0.5ft3 0.3ft3 2.5ft3 1.5ft3 .75ft3 -3dB Down Point—In Car System "Q" (2.) (4.) 20Hz 0.9 1.1 20Hz 0.8 0.95 20Hz 0.6 0.7 20Hz 1.36 1.56 20Hz 1.03 1.12 20Hz 0.92 0.98 20Hz 0.69 0.73 20Hz 1.63 1.5 20Hz 1.38 1.29 20Hz 1.18 1.09 Recommended Enclosure Dimensions (Internal)

Keep any restrictive materials such as wood, hard plastic or metal from directly blocking the subwoofer. Sedan Installation Wiring 2 ohm subwoofers One 2. sub Two 2. subs, series Two 2. subs, parallel Three 2. subs, series Four 2. subs, series/parallel Wiring 4 ohm subwoofers One 4. sub Two 4. subs, parallel Three 4. subs, parallel Four 4. subs, series/parallel Four 4. subs, parallel ProSeries Competitor Series Specifications 12.5LF 10.5LF 8.5LF 1500 Nominal Size 12" (30cm) 10" (25cm) 8" (20cm)

Warning This manual explains only the basic installation of the subwoofers—not the techniques required to perform the installation. If you do not have the experience that these procedures require, we strongly suggest you consult your Boston Acoustics dealer about professional installation. 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 o

3.1. 1.6. 3.1. 1.6. 3.1. 1.6. 3.2. Voice Coil Inductance @ 1kHz (Le) 0.40mH 0.55mH 0.40mH 0.55mH 0.40mH 0.55mH 0.45mH 0.62mH Linear Excursion—One Way (Xmax) 8.5mm 8.5mm 8.5mm 8.5mm 8.5mm 8.5mm 5.5mm 5.5mm Peak-to-Peak Maximum Excursion 40mm 40mm 35mm 35mm 35mm 35mm 40mm 40mm Reference Efficiency (. o) 0.46 0.39 0.26 0.25 0.25 0.22 0.73 0.64 We provide Theile/Small Parameters for those interested in studying subwoofers further. We do not recommend you use computer software to determine enclosure

3.1. 1.6. 3.1. 1.6. 3.1. 1.7. 3.6. 1.7. 3.6. 1.7. 3.6. 0.40mH 0.55mH 0.40mH 0.55mH 0.40mH 0.55mH 0.98mH 1.9mH 0.98mH 1.9mH 0.98mH 1.9mH 8.5mm 8.5mm 8.5mm 8.5mm 8.5mm 8.5mm 4.4mm 5.3mm 4.4mm 5.3mm 4.4mm 5.3mm 40mm 40mm 35mm 35mm 35mm 35mm 37mm 37mm 37mm 37mm 33mm 33mm 0.46 0.39 0.26 0.25 0.25 0.22 0.56 0.63 0.32 0.36 0.16 0.18 300 Jubilee Drive Boston and Boston Acoustics are registered trademarks of Boston Acoustics, Inc. ©1999 Covered by patents issued and/or Peabody, MA 01960 U.S.A. pending. 9

3.1. 1.6. 3.1. 1.6. 3.1. 1.6. 3.2. Voice Coil Inductance @ 1kHz (Le) 0.40mH 0.55mH 0.40mH 0.55mH 0.40mH 0.55mH 0.45mH 0.62mH Linear Excursion—One Way (Xmax) 8.5mm 8.5mm 8.5mm 8.5mm 8.5mm 8.5mm 5.5mm 5.5mm Peak-to-Peak Maximum Excursion 40mm 40mm 35mm 35mm 35mm 35mm 40mm 40mm Reference Efficiency (. o) 0.46 0.39 0.26 0.25 0.25 0.22 0.73 0.64 We provide Theile/Small Parameters for those interested in studying subwoofers further. We do not recommend you use computer software to determine enclosure

The joints should be liberally glued with carpenter’s wood glue and screwed together with wood screws and sealed internally with a bead of silicone rubber 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 enclosure. Even small leaks can have a dramatic effect on sub- woofer performance. Look, listen, and test for

o) 0.46 0.39 0.26 0.25 0.25 0.22 0.73 0.64 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 performance 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 perform

2./4. 2./4. 2./4. ProSeries Competitor Series Theile/Small Parameters 12.5LF 12.5LF 10.5LF 10.5LF 8.5LF 8.5LF 1500 1500 (2.) (4.) (2.) (4.) (2.) (4.) (2.) (4.) Resonant Frequency (Fs) 30Hz 31Hz 33Hz 34Hz 35Hz 36Hz 34Hz 35Hz Equivalent Volume (Vas) 84 liters 84 liters 35 liters 35 liters 21 liters 21 liters 155 liters 155 liters 2.97ft3 2.97ft3 1.24ft3 1.24ft3 0.74ft3 0.74ft3 5.47ft3 5.47ft3 Total Q (Qts) 0.45 0.57 0.44 0.53 0.33 0.40 0.72 0.85 Electrical Q (Qes) 0.47 0.61 0.47 0.57 0.35 0.42 0.8