JL Audio 15W3 18W3 user manual

Summary of the content on the page No. 1

15W3 18W3
Subwoofers
owner’s manual
Congratulations on your purchase of a JL Audio subwoofer component. Your JL Audio subwoofer is a
precision loudspeaker which has been engineered to produce the highest quality sub-bass performance in
your vehicle. Authorized JL Audio dealers have extensive technical information for many different
applications of your new speaker. They also have the knowledge, skills and tools to build a high-quality
enclosure that will maximize the performance of your spea

Summary of the content on the page No. 2

SUBWOOFER SPECIFICATIONS SUBWOOFER: 15W3-D2 15W3-D4 18W3-D2 18W3-D4 Free Air Resonance (Fs): 21.3 Hz 21.8 Hz 19.0 Hz 19.7 Hz Electrical “Q” (Qes): 0.4559 0.4302 0.4079 0.456 Mechanical “Q” (Qms): 8.854 8.854 8.7578 8.0183 Total Speaker “Q” (Qts): 0.434 0.41 0.39 0.432 3 3 3 3 Equiv. Compliance (Vas): 8.42 ft 8.42 ft 13.339 ft 13.339 ft 238.5 litres 238.5 litres 377.1 litres 377.1 litres One-way, Linear Excursion: 0.675 in 0.675 in 0.500 in 0.500 in (Xmax)* 17.1 mm 17.1 mm 12.7 mm 12.7 mm Efficie

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RECOMMENDED ENCLOSURES SUBWOOFER SEALED ENCLOSURE PORTED ENCLOSURE Volume External Dimensions Volume External Dimensions Port(s) (net int.) (Width x Height x Depth) (net int.) (Width x Height x Depth) (Inside Dia. x Length) 3 3 2.125 ft 22" x 16" x 14.75" 3.50 ft 24" x 19" x 18" (2) 3.0" x 11.6" 15W3-D2 60.2 litres 559mm x 406mm x 375mm 99.1 litres 610mm x 483mm x 457mm (2) 76mm x 295mm 3 3 2.125 ft 22" x 16" x 14.75" 3.50 ft 24" x 19" x 18" (2) 3.0" x 10.9" 15W3-D4 60.2 litres 559mm x 406mm x 3

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RECOMMENDED CONTINUOUS (RMS) POWER RANGE FOR ONE SUBWOOFER DRIVER: 30W 60W 125W 250W 500W 1000W 18W3 15W3 LEGEND: MED. GRAY: LIGHT GRAY: DARK GRAY: BLACK: MINIMUM OPTIMUM MAXIMUM WARRANTY VO ID MEDIUM GRAY (MINIMUM): LIGHT GRAY (OPTIMUM): DARK GRAY (MAXIMUM): BLACK (WARRANTY VOID): From a reliability standpoint, this zone represents This zone represents the best compromise In this zone, low-distortion output and long-term We do not recommend operating woofers at a very comfortable operating powe