JL Audio 15W3v2-D2 Owner's Manual page 2

15W3v2_MAN.indd, Spread 2 of 2 - Pages (2, 3) 11/15/04 5:11 PM
JL AUDIO 15W3v2-D2 / 15W3v2-D4
U.S. PATENTS: #5,734,734 #6,219,431 #6,234,479 Other U.S. & Foreign patents pending.
WIRING OPTIONS
* Xmax specifications are derived via one-way voice coil overhang method with no correction
factors applied.
** Efficiency (1W/1m) is not an accurate indicator of a subwoofer's output capability and should not
be used as a comparison to other subwoofers to determine which one is "louder".
*** Re (DC resistance) is measured with the voice coils in series, for parallel-wired specification
divide Re by 4. All other specifications remain the same.
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15W3v2 SUBWOOFER PHYSICAL
SPECIFICATIONS
Nominal Diameter: 15 in / 381 mm
Overall Diameter (A): 15.2 in / 386 mm
Mounting Hole Dia. (B): 13.875 in / 353 mm
Bolt Hole Circle (C): 14.56 in / 370 mm
Magnet Diameter (D): 6.5 in / 165 mm
Mounting Depth (E): 8.125 in / 206 mm
Net Weight: 17.4 lbs. / 7.8 Kg
Driver Displacement: 0.14 cu. ft. / 3.9 litres
SUBWOOFER 15W3v2-D2 15W3v2-D4
Free Air Resonance (Fs): 22.5 Hz 23.0 Hz
Electrical "Q" (Qes): 0.510 0.464
Mechanical "Q" (Qms): 10.155 8.794
Total Speaker "Q" (Qts): 0.486 0.441
6.86 cu. ft. 6.94 cu. ft.
Equivalent Compliance (Vas):
194.3 litres 196.5 litres
0.675 in 0.675 in
One-way, Linear Excursion (Xmax)*:
17.1 mm 17.1 mm
Efficiency (1W/1m)**: 88.2 dB SPL 88.9 dB SPL
127.5 sq. in. 127.5 sq. in.
Effective Piston Area (Sd):
0.0822 sq. m. 0.0822 sq. m.
DC Resistance (Re)***: 3.44 ohm 6.80 ohm
Nominal Impedance: Dual 2 ohm Dual 4 ohm
Power Handling (continuous): 500W 500W
JL AUDIO 15W3v2-D2 / 15W3v2-D4
All specifications are subject to change without notice.
SUBWOOFER RECOMMENDED SEALED ENCLOSURES
Volume External Dimensions
(net int.) (Width x Height x Depth)
2.125 cu. ft. 22 in. x 16 in. x 14.75 in.
15W3v2-D2
60.2 litres 559 mm x 406 mm x 375 mm
2.125 cu. ft. 22 in. x 16 in. x 14.75 in.
15W3v2-D4
60.2 litres 559 mm x 406 mm x 375 mm
SUBWOOFER RECOMMENDED PORTED ENCLOSURES
Volume Enclosure External Dimensions
(net int.) (Width x Height x Depth)
3.50 cu. ft. 24 in. x 19 in. x 18 in.
15W3v2-D2
99.1 litres 610 mm x 483 mm x 457 mm
3.50 cu. ft. 24 in. x 19 in. x 18 in.
15W3v2-D4
99.1 litres 610 mm x 483 mm x 457 mm
• The enclosure recommendations listed above are
external dimensions which assume the use of 3/4"
(19mm) thick material. If you are using 5/8" (16mm)
thick material, subtract 1/4" (6.5mm) from each
dimension. Do not use any material with a thickness
of less than 5/8" (16mm) as this may compromise
the rigidity of the enclosure.
• All enclosure volumes listed above are net
internal volumes! Driver displacement, port
displacement and brace displacement must be
added to obtain the final gross internal volume.
All enclosure dimensions above have already taken
this into account.
• When using multiple subwoofers in a common
enclosure you will need to recalculate the enclosure
and port dimensions. For assistance please contact
your authorized JL Audio dealer or JL Audio
Prolonged exposure to sound pressure levels in excess of 100dB can cause permanent hearing loss. This high-performance
Technical Support at 954-443-1100. speaker can exceed this level. Please exercise restraint in its operation in order to preserve your ability to enjoy its fidelity.
• We recommend the use of this speaker in a
When installing a subwoofer in your vehicle, it is extremely important to secure the enclosure firmly. We recommend
bi-amplified system using high-quality satellite
bolting the enclosure through the metal of the floorpan or the frame of the vehicle with large diameter washers for
speakers and a high-quality amplifier. We do reinforcement. If an enclosure is not firmly attached, it can become a projectile in a collision. This is particularly important
in a hatchback, station wagon, sports utility vehicle, or van.
not recommend the use of this subwoofer with a
passive crossover (coil), as this type of device will
adversely affect performance.
JL AUDIO 15W3v2-D2 / 15W3v2-D4
F3 Fc
Qtc
(Hz) (Hz)
38.9 44.7 0.97
41.6 46.0 0.88
Ports Tune to:
(Inside Diameter x Length) (Hz) (Hz)
(2) 3.0 in. x 11.6 in.
28.0 28.8
(2) 76 mm x 295 mm
(2) 3.0 in. x 10.9 in.
30.0 30.0
(2) 76 mm x 277 mm
F3
3