Bomber Outdoor 1200W 4 Ohm (SW12OUT-1200-4)

12″ subwoofer · 4 Ω · 1,200 W RMS

Fs 41 HzQts 0.56Vas 1.94 ft³Xmax 0.41″

Recommended box

For a sedan, one sub, 1,200 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 volume1.80 ft³ (51 L)
Qtc0.80
Fc59 Hz
F3 (−3 dB, no cabin gain)55 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 9 1/16″
Open sealed box in designer

Ported

Net volume3.14 ft³ (89 L)
Tuning (Fb)39 Hz
Portslot 3 15/16 × 14 5/16″, 25 3/8″ long
Port velocity at 1,200 W63 ft/s
F3 (−3 dB, no cabin gain)35 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 18 1/8″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs41 Hz
Qts0.56
Qes0.58
Qms13.64
Vas1.94 ft³
Re3.17 Ω
Sd81.1 in²
Xmax0.41″
Vd33.2 in³ calc.
Mms107 g calc.
BL12.2 T·m calc.
EBP71 — sealed or ported calc.
Sensitivity, 1 W / 1 m90.1 dB calc.

General

Size12″
Voice coils4 Ω
RMS power1,200 W

Mounting dimensions

Ø12 1/16″cutout ≈ Ø10 7/8″mounting depth 6 5/8″magnet Ø7 1/2″
Cutout diameter≈ 10 7/8″
Mounting depth6 5/8″
Overall diameter12 1/16″
Magnet diameter7 1/2″

“≈” 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