American Bass HAWK-1244

12″ subwoofer · dual 4 Ω · 1,500 W RMS

Fs 33.5 HzQts 0.40Vas 0.94 ft³Xmax 0.61″

Recommended box

For a sedan, one sub, 1,500 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 volume0.78 ft³ (22 L)
Qtc0.59
Fc50 Hz
F3 (−3 dB, no cabin gain)64 Hz
Example box (outside)14 9/16″ × 14 9/16″ × 10 1/4″
Open sealed box in designer

Ported

Net volume1.38 ft³ (39 L)
Tuning (Fb)32 Hz
Port2 round ports Ø2 1/2″, 17 1/16″ long
Port velocity at 1,500 W243 ft/s
F3 (−3 dB, no cabin gain)30 Hz
Example box (outside)23 9/16″ × 15 3/4″ × 10 1/4″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs33.5 Hz
Qts0.40
Qes0.429
Qms5.12
Vas0.94 ft³
Re (one coil)≈ 3.4 Ω
Sd71.7 in²
Xmax0.61″
Vd43.8 in³ calc.
Mms256 g calc.
BL20.7 T·m calc.
EBP78 — sealed or ported calc.
Sensitivity, 1 W / 1 m85.7 dB calc.

General

Size12″
Voice coilsdual 4 Ω
RMS power1,500 W

Mounting dimensions

Ø≈ 12 1/2″cutout Ø11 5/16″mounting depth 7 11/16″magnet Ø≈ 7 3/8″
Cutout diameter11 5/16″
Mounting depth7 11/16″

Cone area (Sd) calculated from Fs, Vas and Mms: 71.7 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 American Bass 12″ models