Earthquake Subzero 10

10″ subwoofer · dual 4 Ω

Fs 28.7 HzQts 0.47Vas 1.08 ft³Xmax 1.25″

Recommended box

For a sedan, one sub, 300 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)
Qtc0.78
Fc47 Hz
F3 (−3 dB, no cabin gain)46 Hz
Example box (outside)12 5/8″ × 12 5/8″ × 11 1/16″
Open sealed box in designer

Ported

Net volume1.87 ft³ (53 L)
Tuning (Fb)27 Hz
Portslot 1 9/16 × 14 5/16″, 40 5/16″ long
Port velocity at 300 W44 ft/s
F3 (−3 dB, no cabin gain)25 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 12 1/16″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs28.7 Hz
Qts0.47
Qes0.699
Qms1.45
Vas1.08 ft³
Re (one coil)3.85 Ω
Sd51.2 in²
Xmax1.25″
Vd64 in³ calc.
Mms154 g calc.
BL12.4 T·m calc.
EBP41 — suits sealed calc.
Sensitivity, 1 W / 1 m82.2 dB calc.

General

Size10″
Voice coilsdual 4 Ω
RMS power—

Mounting dimensions

Ø≈ 10 7/16″cutout Ø9 1/4″mounting depth 8 11/16″magnet Ø≈ 6″
Cutout diameter9 1/4″
Mounting depth8 11/16″

“≈” 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 Earthquake 10″ models