Deaf Bonce Apocalypse DB-3015R D2

15″ subwoofer · dual 2 Ω · 2,800 W RMS

Fs 32.5 HzQts 0.47Vas 2.46 ft³Xmax 0.75″

Recommended box

For a sedan, one sub, 2,800 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 volume1.47 ft³ (41.5 L)
Qtc0.77
Fc53 Hz
F3 (−3 dB, no cabin gain)52 Hz
Example box (outside)17 5/16″ × 17 5/16″ × 12 5/8″
Open sealed box in designer

Ported

Net volume4.24 ft³ (120 L)
Tuning (Fb)30 Hz
Portslot 5 5/16 × 16 11/16″, 54 3/8″ long
Port velocity at 2,800 W64 ft/s
F3 (−3 dB, no cabin gain)27 Hz
Example box (outside)31 1/2″ × 18 1/8″ × 27 1/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs32.5 Hz
Qts0.47
Qes0.51
Qms6
Vas2.46 ft³
Re (one coil)≈ 1.7 Ω
Sd≈ 124 in²
Xmax0.75″
EBP64 — sealed or ported calc.
Sensitivity, 1 W / 1 m88.7 dB calc.

General

Size15″
Voice coilsdual 2 Ω
RMS power2,800 W

Mounting dimensions

Ø≈ 15 3/16″cutout Ø14″mounting depth 10 3/16″magnet Ø≈ 9 1/16″
Cutout diameter14″
Mounting depth10 3/16″

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