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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 or ported enclosures. 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) Height Width Depth 10.5" 13.0" 13.0" 7.5" 11.0" 11.0" 6.5" 9.0" 9.0" 10" 16" 16" 10.5" 13.0" 13.0" 7.5" 11.0" 11.0" 6.5" 9.0" 9.0" 20" 16" 13.5" 16" 14" 12" 12" 11" 9.75" Ported Enclosures (Generator Series only) Gross Internal Volume Tuning Frequency Port Diameter Port Length GS1500 2.5ft3 35Hz 4"D 11"L GS1200 1.5ft3 35Hz 3"D 7.3"L GS1000 1.25ft3 33Hz 3"D 11"L Recommended Enclosure Dimensions (Internal) Height 20" 16" 14" Width 16" 14" 11.5" Depth 13.5" 12" 14" 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 1ft3 = 28.32 liters 1ft3 = 1,728in3 Remember to account for material thickness when determining external dimensions. DW H Building an Enclosure Use at least 3.4-inch MDF to build the enclosure (1-inch is preferable). 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 leaks at all joints, around the subwoofer perimeter, and at the wire entrance location. Screws Glue Sealant Locating Subwoofer Enclosure in Vehicle The placement of the enclosure is one of the most important factors concerning installation. As each vehicle’s interior acoustics are different, experimentation is the key to optimizing performance. Hatchbacks/Sport Utility Vehicles Locate the enclosure in a rear corner for maximum output. Experiment with the ...
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