JL Audio 12W6v2-D4

12″ subwoofer · dual 4 Ω · 600 W RMS

Fs 25 HzQts 0.45Vas 2.82 ft³Xmax 0.65″

Recommended box

For a sedan, one sub, 600 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 volume1.31 ft³ (37 L)
Qtc0.80
Fc44 Hz
F3 (−3 dB, no cabin gain)42 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 16 7/16″
Open sealed box in designer

Ported

Net volume3.00 ft³ (85 L)
Tuning (Fb)28 Hz
Portslot 2 3/16 × 14 5/16″, 30 5/8″ long
Port velocity at 600 W65 ft/s
F3 (−3 dB, no cabin gain)26 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 16 11/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs25 Hz
Qts0.45
Qes0.48
Qms7.1
Vas2.82 ft³
Re (one coil)3.38 Ω
Sd77.8 in²
Xmax0.65″
Vd50.5 in³ calc.
Mms181 g calc.
BL14.2 T·m calc.
EBP52 — sealed or ported calc.
Sensitivity, 1 W / 1 m86.2 dB calc.

General

Size12″
Voice coilsdual 4 Ω
RMS power600 W

Mounting dimensions

Ø≈ 12 3/16″cutout Ø11″mounting depth 7 5/8″magnet Ø≈ 7 1/8″
Cutout diameter11″
Mounting depth7 5/8″

“≈” 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 12″ models