Bomber Outdoor 300W 4 Ohm (SW10OUT300-4)

10″ subwoofer · 4 Ω · 300 W RMS

Fs 37 HzQts 0.70Vas 1.76 ft³Xmax 0.24″
The published specs don’t add up:

Recommended box

For a sedan, one sub, 300 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 volume1.17 ft³ (33 L)
Qtc1.11
Fc59 Hz
F3 (−3 dB, no cabin gain)46 Hz
Example box (outside)12 3/16″ × 12 3/16″ × 19 11/16″
Open sealed box in designer

Ported

Net volume1.94 ft³ (55 L)
Tuning (Fb)42 Hz
Portslot 1 9/16 × 14 5/16″, 13 11/16″ long
Port velocity at 300 W52 ft/s
F3 (−3 dB, no cabin gain)37 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 10 3/8″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs37 Hz
Qts0.70
Qes0.82
Qms4.75
Vas1.76 ft³
Re3.24 Ω
Sd50.5 in²
Xmax0.24″
Vd12.1 in³ calc.
Mms56 g calc.
BL7.2 T·m calc.
EBP45 — suits sealed calc.
Sensitivity, 1 W / 1 m86.9 dB calc.

General

Size10″
Voice coils4 Ω
RMS power300 W

Mounting dimensions

Ø10″cutout ≈ Ø9″mounting depth 4 13/16″magnet Ø4 3/4″
Cutout diameter≈ 9″
Mounting depth4 13/16″
Overall diameter10″
Magnet diameter4 3/4″

“≈” 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 10″ models