Deaf Bonce Apocalypse DB-315 D1

15″ subwoofer · dual 1 Ω · 3,000 W RMS

Fs 30 HzQts 0.51Vas 2.14 ft³Xmax 0.98″

Recommended box

For a sedan, one sub, 3,000 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 volume1.73 ft³ (49 L)
Qtc0.76
Fc45 Hz
F3 (−3 dB, no cabin gain)44 Hz
Example box (outside)18 1/8″ × 18 1/8″ × 13 1/4″
Open sealed box in designer

Ported

Net volume4.63 ft³ (131 L)
Tuning (Fb)26 Hz
Portslot 5 1/8 × 17 1/2″, 68 11/16″ long
Port velocity at 3,000 W64 ft/s
F3 (−3 dB, no cabin gain)23 Hz
Example box (outside)31 1/2″ × 18 7/8″ × 30 1/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs30 Hz
Qts0.51
Qes0.557
Qms6
Vas2.14 ft³
Re (one coil)0.7 Ω
Sd≈ 124 in²
Xmax0.98″
EBP54 — sealed or ported calc.
Sensitivity, 1 W / 1 m86.7 dB calc.

General

Size15″
Voice coilsdual 1 Ω
RMS power3,000 W

Mounting dimensions

Ø≈ 15 15/16″cutout Ø14 3/4″mounting depth 10 13/16″magnet Ø≈ 9 5/8″
Cutout diameter14 3/4″
Mounting depth10 13/16″

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