B2 Audio RAGE12 D2 v4

12″ subwoofer · dual 2 Ω · 2,000 W RMS

Fs 26.9 HzQts 0.34Vas 0.70 ft³Xmax 0.79″

Recommended box

For a sedan, one sub, 2,000 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 volume0.83 ft³ (23.5 L)
Qtc0.46
Fc37 Hz
F3 (−3 dB, no cabin gain)65 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 11 3/8″
Open sealed box in designer

Ported

Net volume1.38 ft³ (39 L)
Tuning (Fb)25 Hz
Portround port Ø2 1/2″, 13 5/8″ long
Port velocity at 2,000 W539 ft/s
F3 (−3 dB, no cabin gain)23 Hz
Example box (outside)20 1/8″ × 15 3/4″ × 11 7/16″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs26.9 Hz
Qts0.34
Qes0.36
Qms5.58
Vas0.70 ft³
Re (one coil)1.9 Ω
Sd72 in²
Xmax0.79″
Vd56.7 in³ calc.
Mms541 g calc.
BL22 T·m calc.
EBP75 — sealed or ported calc.
Sensitivity, 1 W / 1 m82.3 dB calc.

General

Size12″
Voice coilsdual 2 Ω
RMS power2,000 W

Mounting dimensions

Ø12 1/4″cutout Ø11 1/8″mounting depth 8 7/8″magnet Ø≈ 7 3/16″
Cutout diameter11 1/8″
Mounting depth8 7/8″
Overall diameter12 1/4″

“≈” 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 B2 Audio 12″ models