Skar Audio VS-12 D4

12″ subwoofer · dual 4 Ω · 500 W RMS

Fs 37 HzQts 0.79Vas 1.31 ft³Xmax 0.36″

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 volume1.87 ft³ (53 L)
Qtc1.03
Fc48 Hz
F3 (−3 dB, no cabin gain)39 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 9 3/8″
Open sealed box in designer

Ported

Net volume3.18 ft³ (90 L)
Tuning (Fb)33 Hz
Portslot 2 3/16 × 14 5/16″, 19 3/8″ long
Port velocity at 500 W66 ft/s
F3 (−3 dB, no cabin gain)27 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 16 5/16″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs37 Hz
Qts0.79
Qes0.95
Qms4.68
Vas1.31 ft³
Re (one coil)≈ 3.4 Ω
Sd82.3 in²
Xmax0.36″
Vd29.5 in³ calc.
Mms199 g calc.
BL12.9 T·m calc.
EBP39 — suits sealed calc.
Sensitivity, 1 W / 1 m85 dB calc.

General

Size12″
Voice coilsdual 4 Ω
RMS power500 W

Mounting dimensions

Ø12 3/4″cutout Ø11″mounting depth 4 7/16″magnet Ø6 3/4″
Cutout diameter11″
Mounting depth4 7/16″
Overall diameter12 3/4″
Magnet diameter6 3/4″

“≈” 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 Skar Audio 12″ models