American Bass XMAXXX-1522

15″ subwoofer · dual 2 Ω · 4,000 W RMS

Fs 31.8 HzQts 0.37Vas 1.70 ft³Xmax 0.89″

Recommended box

For a sedan, one sub, 4,000 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 volume1.64 ft³ (46.5 L)
Qtc0.53
Fc45 Hz
F3 (−3 dB, no cabin gain)66 Hz
Example box (outside)17 11/16″ × 17 11/16″ × 13 1/4″
Open sealed box in designer

Ported

Net volume2.33 ft³ (66 L)
Tuning (Fb)30 Hz
Portround port Ø3″, 6 3/4″ long
Port velocity at 4,000 W696 ft/s
F3 (−3 dB, no cabin gain)29 Hz
Example box (outside)23 3/16″ × 18 1/2″ × 13 3/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs31.8 Hz
Qts0.37
Qes0.426
Qms3.07
Vas1.70 ft³
Re (one coil)≈ 1.7 Ω
Sd121.9 in²
Xmax0.89″
Vd108 in³ calc.
Mms456 g calc.
BL19.1 T·m calc.
EBP75 — sealed or ported calc.
Sensitivity, 1 W / 1 m87.6 dB calc.

General

Size15″
Voice coilsdual 2 Ω
RMS power4,000 W

Mounting dimensions

Ø≈ 15 9/16″cutout Ø14 7/16″mounting depth 10 13/16″magnet Ø≈ 9 3/8″
Cutout diameter14 7/16″
Mounting depth10 13/16″

Cone area (Sd) calculated from Fs, Vas and Mms: 121.9 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