Alpine SWS-10D2 (Type-S)

10″ subwoofer · dual 2 Ω · 500 W RMS

Fs 35 HzQts 0.49Vas 0.88 ft³Xmax 0.59″

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 volume0.53 ft³ (15 L)
Qtc0.79
Fc57 Hz
F3 (−3 dB, no cabin gain)54 Hz
Example box (outside)12 3/16″ × 12 3/16″ × 10 1/4″
Open sealed box in designer

Ported

Net volume1.66 ft³ (47 L)
Tuning (Fb)31 Hz
Portslot 1 3/4 × 14 5/16″, 38 3/8″ long
Port velocity at 500 W60 ft/s
F3 (−3 dB, no cabin gain)28 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 11 5/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs35 Hz
Qts0.49
Qes0.52
Qms7.54
Vas0.88 ft³
Re (one coil)1.8 Ω
Sd51.6 in²
Xmax0.59″
Vd30.5 in³ calc.
Mms130 g calc.
BL9.9 T·m calc.
EBP67 — sealed or ported calc.
Sensitivity, 1 W / 1 m85.1 dB calc.

General

Size10″
Voice coilsdual 2 Ω
RMS power500 W

Mounting dimensions

Ø10 11/16″cutout Ø8 7/8″mounting depth 5 9/16″magnet Ø≈ 5 13/16″
Cutout diameter8 7/8″
Mounting depth5 9/16″
Overall diameter10 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 Alpine 10″ models