JL Audio 12W6v3-D4

12″ subwoofer · dual 4 Ω · 600 W RMS

Fs 26.9 HzQts 0.46Vas 1.92 ft³Xmax 0.75″

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 volume0.95 ft³ (27 L)
Qtc0.80
Fc47 Hz
F3 (−3 dB, no cabin gain)44 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 12 11/16″
Open sealed box in designer

Ported

Net volume2.93 ft³ (83 L)
Tuning (Fb)26 Hz
Portslot 2 3/16 × 14 5/16″, 37 1/4″ long
Port velocity at 600 W65 ft/s
F3 (−3 dB, no cabin gain)24 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 17″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs26.9 Hz
Qts0.46
Qes0.487
Qms9.37
Vas1.92 ft³
Re (one coil)3.25 Ω
Sd75.3 in²
Xmax0.75″
Vd56.3 in³ calc.
Mms215 g calc.
BL15.6 T·m calc.
EBP55 — sealed or ported calc.
Sensitivity, 1 W / 1 m85.4 dB calc.

General

Size12″
Voice coilsdual 4 Ω
RMS power600 W

Mounting dimensions

Ø12 1/2″cutout Ø11″mounting depth 7 1/2″magnet Ø7″
Cutout diameter11″
Mounting depth7 1/2″
Overall diameter12 1/2″
Magnet diameter7″

“≈” 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