Alpine X-W10D4

10″ subwoofer · dual 4 Ω · 900 W RMS

Fs 31 HzQts 0.44Vas 0.81 ft³Xmax 0.94″

Recommended box

For a sedan, one sub, 900 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 volume0.48 ft³ (13.5 L)
Qtc0.72
Fc51 Hz
F3 (−3 dB, no cabin gain)53 Hz
Example box (outside)12 3/16″ × 12 3/16″ × 9 7/16″
Open sealed box in designer

Ported

Net volume1.17 ft³ (33 L)
Tuning (Fb)30 Hz
Portround port Ø3″, 15 3/4″ long
Port velocity at 900 W231 ft/s
F3 (−3 dB, no cabin gain)28 Hz
Example box (outside)21 7/8″ × 15 3/4″ × 9 1/4″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs31 Hz
Qts0.44
Qes0.49
Qms4.28
Vas0.81 ft³
Re (one coil)3 Ω
Sd47.3 in²
Xmax0.94″
Vd44.7 in³ calc.
Mms151 g calc.
BL13.4 T·m calc.
EBP63 — sealed or ported calc.
Sensitivity, 1 W / 1 m83.5 dB calc.

General

Size10″
Voice coilsdual 4 Ω
RMS power900 W

Mounting dimensions

Ø10 7/8″cutout Ø9″mounting depth 6 7/8″magnet Ø≈ 5 7/8″
Cutout diameter9″
Mounting depth6 7/8″
Overall diameter10 7/8″

“≈” 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 Alpine 10″ models