Skar Audio DDX-10 D2

10″ subwoofer · dual 2 Ω · 1,000 W RMS

Fs 35.8 HzQts 0.38Vas 0.31 ft³Xmax 0.59″
The published specs don’t add up:

Recommended box

For a sedan, one sub, 1,000 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)
Qtc0.48
Fc46 Hz
F3 (−3 dB, no cabin gain)76 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)29 Hz
Portround port Ø2 1/2″, 13 5/8″ long
Port velocity at 1,000 W360 ft/s
F3 (−3 dB, no cabin gain)26 Hz
Example box (outside)20 11/16″ × 15 3/4″ × 8 11/16″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs35.8 Hz
Qts0.38
Qes0.41
Qms4.8
Vas0.31 ft³
Re (one coil)≈ 1.7 Ω
Sd52.7 in²
Xmax0.59″
Vd31.1 in³ calc.
Mms372 g calc.
BL18.6 T·m calc.
EBP87 — sealed or ported calc.
Sensitivity, 1 W / 1 m81.9 dB calc.

General

Size10″
Voice coilsdual 2 Ω
RMS power1,000 W

Mounting dimensions

Ø10 5/8″cutout Ø9 5/16″mounting depth 6 1/8″magnet Ø7 5/8″
Cutout diameter9 5/16″
Mounting depth6 1/8″
Overall diameter10 5/8″
Magnet diameter7 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 Skar Audio 10″ models