Deaf Bonce Apocalypse DB-4515R D2

15″ subwoofer · dual 2 Ω · 4,500 W RMS

Fs 32.4 HzQts 0.36Vas 2.42 ft³Xmax 0.89″

Recommended box

For a sedan, one sub, 4,500 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 volume1.73 ft³ (49 L)
Qtc0.56
Fc50 Hz
F3 (−3 dB, no cabin gain)69 Hz
Example box (outside)17 5/16″ × 17 5/16″ × 14 7/16″
Open sealed box in designer

Ported

Net volume2.37 ft³ (67 L)
Tuning (Fb)35 Hz
Portround port Ø4″, 8 3/4″ long
Port velocity at 4,500 W442 ft/s
F3 (−3 dB, no cabin gain)34 Hz
Example box (outside)22 1/2″ × 18 1/8″ × 14 3/8″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs32.4 Hz
Qts0.36
Qes0.383
Qms6
Vas2.42 ft³
Re (one coil)≈ 1.7 Ω
Sd≈ 124 in²
Xmax0.89″
EBP85 — sealed or ported calc.
Sensitivity, 1 W / 1 m89.8 dB calc.

General

Size15″
Voice coilsdual 2 Ω
RMS power4,500 W

Mounting dimensions

Ø≈ 15 3/16″cutout Ø14″mounting depth 11 15/16″magnet Ø≈ 9 1/16″
Cutout diameter14″
Mounting depth11 15/16″

Only Qts is published — Qms assumed to be 6 and Qes calculated (barely affects box design).

“≈” 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 Deaf Bonce 15″ models