American Bass KING-1511

15″ subwoofer · dual 1 Ω · 6,500 W RMS

Fs 43.6 HzQts 0.61Vas 0.63 ft³Xmax 0.89″

Recommended box

For a sedan, one sub, 6,500 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 volume1.68 ft³ (47.5 L)
Qtc0.71
Fc51 Hz
F3 (−3 dB, no cabin gain)52 Hz
Example box (outside)16 15/16″ × 16 15/16″ × 14 3/4″
Open sealed box in designer

Ported

Net volume2.33 ft³ (66 L)
Tuning (Fb)31 Hz
Port2 round ports Ø2 1/2″, 10 1/16″ long
Port velocity at 6,500 W682 ft/s
F3 (−3 dB, no cabin gain)27 Hz
Example box (outside)22″ × 17 11/16″ × 14 3/4″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs43.6 Hz
Qts0.61
Qes0.69
Qms4.95
Vas0.63 ft³
Re (one coil)0.8 Ω
Sd121.6 in²
Xmax0.89″
Vd107.7 in³ calc.
Mms649 g calc.
BL14.4 T·m calc.
EBP63 — sealed or ported calc.
Sensitivity, 1 W / 1 m85.3 dB calc.

General

Size15″
Voice coilsdual 1 Ω
RMS power6,500 W

Mounting dimensions

Ø≈ 14 15/16″cutout Ø13 3/4″mounting depth 12 3/16″magnet Ø≈ 8 15/16″
Cutout diameter13 3/4″
Mounting depth12 3/16″

“≈” 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