JL Audio 18W6 User's Manual
Contents
1. Subwoofer Specifications 8W6 10W6 12W6 Fs free air resonance 32 5 Hz 23 2 Hz 20 9 Hz Qts total speaker Q 0 466 0 432 0 433 Qes electrical Q 0 511 0 463 0 462 Qms mechanical Q 5 500 6 567 6 897 Vas equivalent compliance 0 79 f 22 4 liters 2 30 f 65 1 liters 5 73 f 162 3 liters Xmax linear excursion one way 0 388 in 9 9 mm 0 469 in 11 9mm 0 438 in 11 1 mm Efficiency 1W 1m Sd effective piston surface area 83 6 dB 30 7 in 0 0198 m 84 53 6 in 2 dB 0 0346 m 86 9 dB 82 5 in 0 0532 m Re DC resistance 10 6 Q in series 10 8 Q in series 10 8 Q in series Dual 6 Q Dual 6 Q Dual 6 Q 200 Watts 300 Watts 300 Watts Efficiency 1W 1m is not an accurate indicator of a subwoofers output capability and should not be used as a comparison to other subwoofers to determine which one is louder Physical Dimensions Znom nominal impedance Pt continuous thermal power handling in 209 55 mm 10 125 in Mounting Hole Diameter B in 177 8 mm 9 125 i Mounting Depth C in 107 95 mm 4 875 i Overall Depth D 4 6875 in 119 06 mm 5 5 Magnet Diameter E 4 875 in 123 82 mm 6 5 Displacement 0 035 ft 0 989 liters 0 06 1 696 liters 0 085 ft Be sure to allow 0 75 inches 19mm for pole vent clea2. ed volumes and use two of the recommended ports when needed Likewise when using three subwoofers in a common enclosure simply triple the required volume and number of ports when needed With coils wired in series a dual 6Q speaker will present a 12Q load 7 gt Ri 7 With coils AND speakers wired in parallel With the coils wired in series and the speakers wired in parallel 2 dual 6Q speakers D6 will present a 1 5Q load 2 dual 6Q speakers D6 will present a 6Q load A OT f With coils AND speakers wired in parallel With the coils wired in series and the speakers wired in parallel 3 dual 6Q speakers D6 will present a 1Q load 3 dual 6Q speakers D6 will present a 4Q load Do NOT use different impedance speakers when using multiple subwoofers JL Audio recommends using subwoofers as part of a bi amplified system using high quality satellite speakers like our Evolution line of coaxial and component speakers We do not recommend the use of passive crossover components coils on subwoofers These components may adversely affect the performance of a subwoofer When dealing with exceedingly long port lengths we recommend the use of JL Audio s Flex Port System The Flex Port tubing is flexible allowing it to fit in otherwise tight locations The Port mouths provide not only a convenient method of securing the port but a smooth rounded edge for the port termination as well
3. rance on this driver Normal Recommended Enclosures single driver 8W6 10W6 12W6 width X height X depth width X height X depth width X height X depth 16 x 9 x 8 18 x 11 x9 18 x 13 x 13 75 406mm x 229mm x 203mm 457mm x 279mm x 229mm 457mm x 330mm x 349mm 15 x 10 x 12 25 17 x 12 x 13 75 20 x 14 x 17 75 381mm x 254mm x 311mm 432mm x 305mm x 349mm 508mm x 356mm x 451mm 2 5 X 15 4 3 X 18 6 TWO 2 5 X 13 6 64mm X 391mm 76mm X 472mm TWO 64mm X 345mm Frame Diameter A Model Volume Net Int 1 25 ft 35 41 2 25 ft 63 7 1 Volume Net Int 0 625 ft 17 71 1 00 ft 28 3 1 Volume Net Int 0 375 ft 10 61 0 625 ft 17 71 Sealed Enclosure Ported Enclosure Port inside dia X length wee Sealed Enclosure Ported Enclosure Enclosure dimensions listed are external dimensions which assume the use of 0 75 inch 19mm thick material If you are using 0 625 inch 16mm thick material subtract 0 25 inches 6 5mm from each dimension Do not use material with a thickness of less than 0 625 inches 16mm Enclosure volumes listed are NET internal volumes Driver displacement port displacement and brace displacement must be added to obtain the final gross volume The dimensions listed have already taken this into account eWhen using two subwoofers in a common enclosure simply double the requir
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