Ground Zero GZHW 25X (2x2 Ohm)

10″ subwoofer · dual 2 Ω · 600 W RMS

Fs 27.1 HzQts 0.37Vas 0.95 ft³Xmax 0.47″

Recommended box

For a sedan, one sub, 600 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 volume0.46 ft³ (13 L)
Qtc0.65
Fc48 Hz
F3 (−3 dB, no cabin gain)55 Hz
Example box (outside)12 5/8″ × 12 5/8″ × 8 5/8″
Open sealed box in designer

Ported

Net volume0.99 ft³ (28 L)
Tuning (Fb)29 Hz
Portround port Ø2 1/2″, 14 3/16″ long
Port velocity at 600 W239 ft/s
F3 (−3 dB, no cabin gain)28 Hz
Example box (outside)21 3/16″ × 15 3/4″ × 8 1/4″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs27.1 Hz
Qts0.37
Qes0.41
Qms4.09
Vas0.95 ft³
Re (one coil)2 Ω
Sd52 in²
Xmax0.47″
Vd24.6 in³ calc.
Mms203 g calc.
BL13 T·m calc.
EBP66 — sealed or ported calc.
Sensitivity, 1 W / 1 m83.2 dB calc.

General

Size10″
Voice coilsdual 2 Ω
RMS power600 W

Mounting dimensions

Ø≈ 10 11/16″cutout Ø9 1/2″mounting depth 5 7/8″magnet Ø6 3/16″
Cutout diameter9 1/2″
Mounting depth5 7/8″
Magnet diameter6 3/16″

Cone area (Sd) calculated from Fs, Vas and Mms: 52 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