JL Audio 15W3v2-D2

15″ subwoofer · dual 2 Ω · 500 W RMS

Fs 22.5 HzQts 0.49Vas 6.86 ft³Xmax 0.67″

Recommended box

For a sedan, one sub, 500 W. It’s the same math as the designer’s step-by-step mode, where you can fit the box to your space, vehicle and amp and get plans, a cut sheet and DXF.

Sealed

Net volume2.90 ft³ (82 L)
Qtc0.89
Fc41 Hz
F3 (−3 dB, no cabin gain)37 Hz
Example box (outside)31 1/2″ × 17 11/16″ × 12 1/4″
Open sealed box in designer

Ported

Net volume4.94 ft³ (140 L)
Tuning (Fb)30 Hz
Portslot 2 3/16 × 16 5/16″, 16 5/16″ long
Port velocity at 500 W64 ft/s
F3 (−3 dB, no cabin gain)28 Hz
Example box (outside)31 1/2″ × 17 11/16″ × 20 15/16″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs22.5 Hz
Qts0.49
Qes0.51
Qms10.15
Vas6.86 ft³
Re (one coil)1.72 Ω
Sd127.5 in²
Xmax0.67″
Vd85.8 in³ calc.
Mms247 g calc.
BL10.8 T·m calc.
EBP44 — suits sealed calc.
Sensitivity, 1 W / 1 m88.4 dB calc.

General

Size15″
Voice coilsdual 2 Ω
RMS power500 W

Mounting dimensions

Ø15 3/16″cutout Ø13 7/8″mounting depth 8 1/8″magnet Ø≈ 9 1/16″
Cutout diameter13 7/8″
Mounting depth8 1/8″
Overall diameter15 3/16″

“≈” means the value isn’t in the spec sheet and a typical value for the size is used; “calc.” means it’s calculated from the published parameters. Check the manufacturer’s spec sheet before you build.

Data sources

Other JL Audio 15″ models