Ground Zero GZPW 10SQX (2x2 Ohm)

10″ subwoofer · dual 2 Ω · 400 W RMS

Fs 36 HzQts 0.59Vas 0.78 ft³Xmax 1.42″

Recommended box

For a sedan, one sub, 400 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 volume0.92 ft³ (26 L)
Qtc0.80
Fc49 Hz
F3 (−3 dB, no cabin gain)46 Hz
Example box (outside)12 5/8″ × 12 5/8″ × 15″
Open sealed box in designer

Ported

Net volume2.05 ft³ (58 L)
Tuning (Fb)30 Hz
Portslot 1 3/4 × 14 5/16″, 32 5/8″ long
Port velocity at 400 W60 ft/s
F3 (−3 dB, no cabin gain)26 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 12 7/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs36 Hz
Qts0.59
Qes0.654
Qms6
Vas0.78 ft³
Re (one coil)≈ 1.7 Ω
Sd≈ 52.7 in²
Xmax1.42″
EBP55 — sealed or ported calc.
Sensitivity, 1 W / 1 m84 dB calc.

General

Size10″
Voice coilsdual 2 Ω
RMS power400 W

Mounting dimensions

Ø≈ 10 1/2″cutout Ø9 5/16″mounting depth 5 13/16″magnet Ø≈ 6 1/16″
Cutout diameter9 5/16″
Mounting depth5 13/16″

Only Qts is published — Qms assumed to be 6 and Qes calculated (barely affects box design).

“≈” 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 Ground Zero 10″ models