American Bass GF-1511

15″ subwoofer · dual 1 Ω · 3,000 W RMS

Fs 28.9 HzQts 0.40Vas 2.40 ft³Xmax 0.69″

Recommended box

For a sedan, one sub, 3,000 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 volume1.36 ft³ (38.5 L)
Qtc0.67
Fc48 Hz
F3 (−3 dB, no cabin gain)54 Hz
Example box (outside)16 15/16″ × 16 15/16″ × 12 7/16″
Open sealed box in designer

Ported

Net volume2.65 ft³ (75 L)
Tuning (Fb)31 Hz
Portslot 3 9/16 × 16 5/16″, 54 3/8″ long
Port velocity at 3,000 W78 ft/s
F3 (−3 dB, no cabin gain)29 Hz
Example box (outside)31 1/2″ × 17 11/16″ × 18 3/4″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs28.9 Hz
Qts0.40
Qes0.438
Qms5.04
Vas2.40 ft³
Re (one coil)≈ 0.85 Ω
Sd120.8 in²
Xmax0.69″
Vd83.2 in³ calc.
Mms384 g calc.
BL11.6 T·m calc.
EBP66 — sealed or ported calc.
Sensitivity, 1 W / 1 m87.7 dB calc.

General

Size15″
Voice coilsdual 1 Ω
RMS power3,000 W

Mounting dimensions

Ø≈ 14 15/16″cutout Ø13 3/4″mounting depth 9 15/16″magnet Ø≈ 8 15/16″
Cutout diameter13 3/4″
Mounting depth9 15/16″

Cone area (Sd) calculated from Fs, Vas and Mms: 120.8 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 15″ models