Deaf Bonce Hannibal HSS-2812 D2

12″ subwoofer · dual 2 Ω · 600 W RMS

Fs 35.3 HzQts 0.89Vas 1.30 ft³Xmax 0.43″

Recommended box

For a sedan, one sub, 600 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)
Qtc1.18
Fc47 Hz
F3 (−3 dB, no cabin gain)36 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 8 3/4″
Open sealed box in designer

Ported

Net volume2.93 ft³ (83 L)
Tuning (Fb)34 Hz
Portslot 2 3/8 × 14 5/16″, 21 7/8″ long
Port velocity at 600 W62 ft/s
F3 (−3 dB, no cabin gain)28 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 15 11/16″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs35.3 Hz
Qts0.89
Qes1.045
Qms6
Vas1.30 ft³
Re (one coil)≈ 1.7 Ω
Sd≈ 76 in²
Xmax0.43″
EBP34 — suits sealed calc.
Sensitivity, 1 W / 1 m83.9 dB calc.

General

Size12″
Voice coilsdual 2 Ω
RMS power600 W

Mounting dimensions

Ø≈ 12 3/8″cutout Ø11 3/16″mounting depth 6 1/8″magnet Ø≈ 7 1/4″
Cutout diameter11 3/16″
Mounting depth6 1/8″

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 12″ models