Ground Zero GZUW 10CF (2x2 Ohm)

10″ subwoofer · dual 2 Ω · 450 W RMS

Fs 40.2 HzQts 0.54Vas 0.77 ft³Xmax 0.79″

Recommended box

For a sedan, one sub, 450 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 volume0.64 ft³ (18 L)
Qtc0.80
Fc60 Hz
F3 (−3 dB, no cabin gain)56 Hz
Example box (outside)12 5/8″ × 12 5/8″ × 11 1/16″
Open sealed box in designer

Ported

Net volume1.98 ft³ (56 L)
Tuning (Fb)32 Hz
Portslot 1 3/4 × 14 5/16″, 29 3/8″ long
Port velocity at 450 W64 ft/s
F3 (−3 dB, no cabin gain)29 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 11 7/8″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs40.2 Hz
Qts0.54
Qes0.593
Qms6
Vas0.77 ft³
Re (one coil)≈ 1.7 Ω
Sd≈ 52.7 in²
Xmax0.79″
EBP68 — sealed or ported calc.
Sensitivity, 1 W / 1 m85.8 dB calc.

General

Size10″
Voice coilsdual 2 Ω
RMS power450 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