Ground Zero GZIW 10SPL (2x2 Ohm)

10″ subwoofer · dual 2 Ω · 500 W RMS

Fs 40.8 HzQts 0.62Vas 0.50 ft³Xmax 0.43″

Recommended box

For a sedan, one sub, 500 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 volume0.74 ft³ (21 L)
Qtc0.80
Fc53 Hz
F3 (−3 dB, no cabin gain)49 Hz
Example box (outside)12 3/16″ × 12 3/16″ × 13 3/8″
Open sealed box in designer

Ported

Net volume1.91 ft³ (54 L)
Tuning (Fb)29 Hz
Portslot 1 15/16 × 14 5/16″, 42 5/8″ long
Port velocity at 500 W60 ft/s
F3 (−3 dB, no cabin gain)25 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 12 15/16″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs40.8 Hz
Qts0.62
Qes0.7
Qms5.31
Vas0.50 ft³
Re (one coil)1.93 Ω
Sd53.7 in²
Xmax0.43″
Vd23.3 in³ calc.
Mms181 g calc.
BL11.3 T·m calc.
EBP58 — sealed or ported calc.
Sensitivity, 1 W / 1 m83.4 dB calc.

General

Size10″
Voice coilsdual 2 Ω
RMS power500 W

Mounting dimensions

Ø10 1/8″cutout Ø9 1/16″mounting depth 5 13/16″magnet Ø5 7/8″
Cutout diameter9 1/16″
Mounting depth5 13/16″
Overall diameter10 1/8″
Magnet diameter5 7/8″

Cone area (Sd) calculated from Fs, Vas and Mms: 53.7 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