Cerwin-Vega Mobile VPRO122D (VPRO 12" DVC 2ohm)

12″ subwoofer · dual 2 Ω · 750 W RMS

Fs 30.5 HzQts 0.57Vas 1.50 ft³Xmax 0.73″

Recommended box

For a sedan, one sub, 750 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 volume1.59 ft³ (45 L)
Qtc0.80
Fc43 Hz
F3 (−3 dB, no cabin gain)40 Hz
Example box (outside)13 3/4″ × 13 3/4″ × 20 9/16″
Open sealed box in designer

Ported

Net volume2.93 ft³ (83 L)
Tuning (Fb)28 Hz
Portslot 2 9/16 × 14 5/16″, 37 11/16″ long
Port velocity at 750 W65 ft/s
F3 (−3 dB, no cabin gain)24 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 17 1/2″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs30.5 Hz
Qts0.57
Qes0.6
Qms13.3
Vas1.50 ft³
Re (one coil)2 Ω
Sd76 in²
Xmax0.73″
Vd55.3 in³ calc.
Mms218 g calc.
BL11.8 T·m calc.
EBP51 — sealed or ported calc.
Sensitivity, 1 W / 1 m85 dB calc.

General

Size12″
Voice coilsdual 2 Ω
RMS power750 W

Mounting dimensions

Ø12 5/8″cutout Ø10 11/16″mounting depth 6″magnet Ø≈ 6 15/16″
Cutout diameter10 11/16″
Mounting depth6″
Overall diameter12 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 Cerwin-Vega Mobile 12″ models