Skar Audio VD-10 D4

10″ subwoofer · dual 4 Ω · 500 W RMS

Fs 41.9 HzQts 0.38Vas 0.61 ft³Xmax 0.45″
The published specs don’t add up:

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 volume0.49 ft³ (14 L)
Qtc0.57
Fc63 Hz
F3 (−3 dB, no cabin gain)84 Hz
Example box (outside)12 5/8″ × 12 5/8″ × 9 1/8″
Open sealed box in designer

Ported

Net volume1.02 ft³ (29 L)
Tuning (Fb)37 Hz
Portslot 1 9/16 × 14 5/16″, 39 1/8″ long
Port velocity at 500 W58 ft/s
F3 (−3 dB, no cabin gain)35 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 8 9/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs41.9 Hz
Qts0.38
Qes0.42
Qms4.2
Vas0.61 ft³
Re (one coil)≈ 3.4 Ω
Sd≈ 52.7 in²
Xmax0.45″
EBP100 — sealed or ported calc.
Sensitivity, 1 W / 1 m86.8 dB calc.

General

Size10″
Voice coilsdual 4 Ω
RMS power500 W

Mounting dimensions

Ø10 11/16″cutout Ø9 5/16″mounting depth 4 1/2″magnet Ø6″
Cutout diameter9 5/16″
Mounting depth4 1/2″
Overall diameter10 11/16″
Magnet diameter6″

“≈” 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 10″ models