Deaf Bonce Apocalypse DB-455-NEO D1

15″ subwoofer · dual 1 Ω · 7,500 W RMS

Fs 30 HzQts 0.23Vas 1.02 ft³Xmax 0.89″

Recommended box

For a sedan, one sub, 7,500 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 volume1.84 ft³ (52 L)
Qtc0.29
Fc37 Hz
F3 (−3 dB, no cabin gain)121 Hz
Example box (outside)18 1/8″ × 18 1/8″ × 13 7/8″
Open sealed box in designer

Ported

Net volume2.37 ft³ (67 L)
Tuning (Fb)25 Hz
Portround port Ø2 1/2″, 7 3/16″ long
Port velocity at 7,500 W1,415 ft/s
F3 (−3 dB, no cabin gain)110 Hz
Example box (outside)21 5/8″ × 18 7/8″ × 14″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs30 Hz
Qts0.23
Qes0.239
Qms6
Vas1.02 ft³
Re (one coil)≈ 0.85 Ω
Sd≈ 124 in²
Xmax0.89″
EBP126 — suits ported calc.
Sensitivity, 1 W / 1 m87.1 dB calc.

General

Size15″
Voice coilsdual 1 Ω
RMS power7,500 W

Mounting dimensions

Ø≈ 15 15/16″cutout Ø14 3/4″mounting depth 11 7/16″magnet Ø≈ 9 5/8″
Cutout diameter14 3/4″
Mounting depth11 7/16″

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