Cerwin-Vega Mobile VMAX154 (VMAX 15" DVC 4ohm)

15″ subwoofer · dual 4 Ω · 500 W RMS

Fs 30.3 HzQts 0.69Vas 2.69 ft³Xmax 0.54″

Recommended box

For a sedan, one sub, 500 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 volume2.83 ft³ (80 L)
Qtc0.97
Fc42 Hz
F3 (−3 dB, no cabin gain)35 Hz
Example box (outside)31 1/2″ × 17 11/16″ × 12″
Open sealed box in designer

Ported

Net volume4.84 ft³ (137 L)
Tuning (Fb)30 Hz
Portslot 2 3/8 × 16 5/16″, 18 1/2″ long
Port velocity at 500 W60 ft/s
F3 (−3 dB, no cabin gain)26 Hz
Example box (outside)31 1/2″ × 17 11/16″ × 20 7/8″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs30.3 Hz
Qts0.69
Qes0.796
Qms5.32
Vas2.69 ft³
Re (one coil)3.6 Ω
Sd124.6 in²
Xmax0.54″
Vd67.7 in³ calc.
Mms332 g calc.
BL16.9 T·m calc.
EBP38 — suits sealed calc.
Sensitivity, 1 W / 1 m86.2 dB calc.

General

Size15″
Voice coilsdual 4 Ω
RMS power500 W

Mounting dimensions

Ø15 3/8″cutout Ø13 9/16″mounting depth 7 9/16″magnet Ø≈ 8 13/16″
Cutout diameter13 9/16″
Mounting depth7 9/16″
Overall diameter15 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 Cerwin-Vega Mobile 15″ models