Bomber Bicho Papão 800W 4+4 Ohm (SW12BPF800-4+4)

12″ subwoofer · dual 4 Ω · 800 W RMS

Fs 38 HzQts 0.49Vas 1.19 ft³Xmax 0.51″

Recommended box

For a sedan, one sub, 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 volume0.74 ft³ (21 L)
Qtc0.80
Fc61 Hz
F3 (−3 dB, no cabin gain)58 Hz
Example box (outside)14 9/16″ × 14 9/16″ × 9 7/8″
Open sealed box in designer

Ported

Net volume2.37 ft³ (67 L)
Tuning (Fb)33 Hz
Portslot 2 3/4 × 14 5/16″, 35 13/16″ long
Port velocity at 800 W62 ft/s
F3 (−3 dB, no cabin gain)30 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 15 5/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs38 Hz
Qts0.49
Qes0.53
Qms7.32
Vas1.19 ft³
Re (one coil)3.54 Ω
Sd70.2 in²
Xmax0.51″
Vd35.9 in³ calc.
Mms152 g calc.
BL15.6 T·m calc.
EBP72 — sealed or ported calc.
Sensitivity, 1 W / 1 m87.4 dB calc.

General

Size12″
Voice coilsdual 4 Ω
RMS power800 W

Mounting dimensions

Ø12 13/16″cutout ≈ Ø11 9/16″mounting depth 7 1/16″magnet Ø6 5/8″
Cutout diameter≈ 11 9/16″
Mounting depth7 1/16″
Overall diameter12 13/16″
Magnet diameter6 5/8″

“≈” 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 Bomber 12″ models