Audiofrog G12D2

12″ subwoofer · dual 2 Ω · 250 W RMS

Fs 32.2 HzQts 0.48Vas 2.01 ft³Xmax 0.54″

Recommended box

For a sedan, one sub, 250 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)
Qtc0.80
Fc53 Hz
F3 (−3 dB, no cabin gain)50 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 14 15/16″
Open sealed box in designer

Ported

Net volume3.07 ft³ (87 L)
Tuning (Fb)31 Hz
Portslot 1 9/16 × 14 5/16″, 16 1/2″ long
Port velocity at 250 W63 ft/s
F3 (−3 dB, no cabin gain)28 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

Fs32.2 Hz
Qts0.48
Qes0.52
Qms6.94
Vas2.01 ft³
Re (one coil)2 Ω
Sd79.2 in²
Xmax0.54″
Vd42.4 in³ calc.
Mms158 g calc.
BL11.1 T·m calc.
EBP62 — sealed or ported calc.
Sensitivity, 1 W / 1 m87.6 dB calc.

General

Size12″
Voice coilsdual 2 Ω
RMS power250 W

Mounting dimensions

Ø12 3/8″cutout Ø11 1/16″mounting depth 6 9/16″magnet Ø≈ 7 3/16″
Cutout diameter11 1/16″
Mounting depth6 9/16″
Overall diameter12 3/8″

“≈” 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 Audiofrog 12″ models