American Bass XFL-1544

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

Fs 33 HzQts 0.49Vas 2.09 ft³Xmax 0.67″

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 volume1.34 ft³ (38 L)
Qtc0.78
Fc53 Hz
F3 (−3 dB, no cabin gain)51 Hz
Example box (outside)17 5/16″ × 17 5/16″ × 11 13/16″
Open sealed box in designer

Ported

Net volume3.99 ft³ (113 L)
Tuning (Fb)29 Hz
Portslot 3 3/4 × 16 11/16″, 43 3/16″ long
Port velocity at 1,500 W64 ft/s
F3 (−3 dB, no cabin gain)26 Hz
Example box (outside)31 1/2″ × 18 1/8″ × 21 15/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs33 Hz
Qts0.49
Qes0.537
Qms5.31
Vas2.09 ft³
Re (one coil)3 Ω
Sd≈ 124 in²
Xmax0.67″
EBP61 — sealed or ported calc.
Sensitivity, 1 W / 1 m88 dB calc.

General

Size15″
Voice coilsdual 4 Ω
RMS power1,500 W

Mounting dimensions

Ø≈ 15 1/4″cutout Ø14 1/8″mounting depth 9 5/16″magnet Ø≈ 9 3/16″
Cutout diameter14 1/8″
Mounting depth9 5/16″

“≈” 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 15″ models