American Bass HAWKSLIM-1244

12″ subwoofer · dual 4 Ω · 900 W RMS

Fs 37.5 HzQts 0.71Vas 1.20 ft³Xmax 0.33″

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 volume1.77 ft³ (50 L)
Qtc0.92
Fc49 Hz
F3 (−3 dB, no cabin gain)41 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 8 15/16″
Open sealed box in designer

Ported

Net volume3.00 ft³ (85 L)
Tuning (Fb)32 Hz
Portslot 2 15/16 × 14 5/16″, 31 7/16″ long
Port velocity at 900 W63 ft/s
F3 (−3 dB, no cabin gain)27 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 17 1/2″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs37.5 Hz
Qts0.71
Qes0.824
Qms5.33
Vas1.20 ft³
Re (one coil)3.8 Ω
Sd77.9 in²
Xmax0.33″
Vd26.1 in³ calc.
Mms191 g calc.
BL14.4 T·m calc.
EBP45 — suits sealed calc.
Sensitivity, 1 W / 1 m85.4 dB calc.

General

Size12″
Voice coilsdual 4 Ω
RMS power900 W

Mounting dimensions

Ø12 13/16″cutout Ø10 7/8″mounting depth 3 9/16″magnet Ø≈ 7 1/16″
Cutout diameter10 7/8″
Mounting depth3 9/16″
Overall diameter12 13/16″

“≈” 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 American Bass 12″ models