Ground Zero GZPW 10SQ (2x2 Ohm)

10″ subwoofer · dual 2 Ω · 400 W RMS

34 HzFs, resonance
0.58Qts
0.83 ft³Vas
0.59″Xmax
400 WRMS

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

smaller, tighter
0.92 ft³ (26 L)
Net volume
Qtc0.80
Fc47 Hz
F3 (−3 dB, no cabin gain)44 Hz
Example box (outside)12 3/16″ × 12 3/16″ × 16″
Open sealed box in designer

Ported

deeper, louder
2.05 ft³ (58 L)
Net volume
Tuning (Fb)29 Hz
Portslot 1 9/16 × 14 5/16″, 31 1/8″ long
Port velocity at 400 W65 ft/s
F3 (−3 dB, no cabin gain)25 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 12 1/8″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs34 Hz
Qts0.58
Qes0.66
Qms4.89
Vas0.83 ft³
Re (one coil)2 Ω
Sd52.9 in²
Xmax0.59″
Vd31.3 in³ calc.
Mms154 g calc.
BL10 T·m calc.
EBP52 — sealed or ported calc.
Sensitivity, 1 W / 1 m83.5 dB calc.

General

Size10″
Voice coilsdual 2 Ω
RMS power400 W

Mounting dimensions

Ø≈ 10 5/16″cutout ≈ Ø9 1/8″mounting depth ≈ 5 1/8″magnet Ø≈ 5 15/16″
Cutout diameter≈ 9 1/8″
Mounting depth≈ 5 1/8″

Cone area (Sd) calculated from Fs, Vas and Mms: 52.9 in².

“≈” 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