Cerwin-Vega Mobile V82D (Vega 8" DVC 2ohm)

8″ subwoofer · dual 2 Ω · 250 W RMS

Fs 34.4 HzQts 0.64Vas 0.53 ft³Xmax 0.53″

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 volume0.71 ft³ (20 L)
Qtc0.84
Fc45 Hz
F3 (−3 dB, no cabin gain)41 Hz
Example box (outside)10 1/4″ × 10 1/4″ × 17 7/8″
Open sealed box in designer

Ported

Net volume1.20 ft³ (34 L)
Tuning (Fb)30 Hz
Portround port Ø3″, 15 3/16″ long
Port velocity at 250 W127 ft/s
F3 (−3 dB, no cabin gain)26 Hz
Example box (outside)30 3/4″ × 15 3/4″ × 6 7/8″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs34.4 Hz
Qts0.64
Qes0.7
Qms7.2
Vas0.53 ft³
Re (one coil)2 Ω
Sd31 in²
Xmax0.53″
Vd16.5 in³ calc.
Mms81 g calc.
BL7.1 T·m calc.
EBP49 — suits sealed calc.
Sensitivity, 1 W / 1 m81.4 dB calc.

General

Size8″
Voice coilsdual 2 Ω
RMS power250 W

Mounting dimensions

Ø8 3/4″cutout Ø7 1/16″mounting depth 4 7/16″magnet Ø≈ 4 5/8″
Cutout diameter7 1/16″
Mounting depth4 7/16″
Overall diameter8 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 Cerwin-Vega Mobile 8″ models