Alpine SWG-1044 (Type-G)

10″ subwoofer · 4 Ω · 150 W RMS

Fs 33 HzQts 0.34Vas 2.30 ft³Xmax 0.31″

Recommended box

For a sedan, one sub, 150 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 volume0.49 ft³ (14 L)
Qtc0.81
Fc78 Hz
F3 (−3 dB, no cabin gain)75 Hz
Example box (outside)12 5/8″ × 12 5/8″ × 9 1/8″
Open sealed box in designer

Ported

Net volume1.55 ft³ (44 L)
Tuning (Fb)40 Hz
Portslot 1 9/16 × 14 5/16″, 20 5/16″ long
Port velocity at 150 W37 ft/s
F3 (−3 dB, no cabin gain)40 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 9 5/16″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs33 Hz
Qts0.34
Qes0.37
Qms4.06
Vas2.30 ft³
Re3.6 Ω
Sd53.6 in²
Xmax0.31″
Vd16.9 in³ calc.
Mms61 g calc.
BL11.1 T·m calc.
EBP89 — sealed or ported calc.
Sensitivity, 1 W / 1 m90 dB calc.

General

Size10″
Voice coils4 Ω
RMS power150 W

Mounting dimensions

Ø≈ 10 7/16″cutout Ø9 1/4″mounting depth 5 1/2″magnet Ø≈ 6″
Cutout diameter9 1/4″
Mounting depth5 1/2″

“≈” 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