Cerwin-Vega Mobile XED12 (XED 12" SVC 4ohm)

12″ subwoofer · 4 Ω · 150 W RMS

Fs 27.4 HzQts 0.55Vas 3.64 ft³Xmax 0.70″
The published specs don’t add up:

Recommended box

For a sedan, one sub, 150 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 volume1.73 ft³ (49 L)
Qtc0.97
Fc48 Hz
F3 (−3 dB, no cabin gain)41 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 8 3/4″
Open sealed box in designer

Ported

Net volume2.93 ft³ (83 L)
Tuning (Fb)35 Hz
Portslot 1 9/16 × 14 5/16″, 12 7/8″ long
Port velocity at 150 W43 ft/s
F3 (−3 dB, no cabin gain)32 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 14 1/2″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs27.4 Hz
Qts0.55
Qes0.62
Qms4.82
Vas3.64 ft³
Re3.9 Ω
Sd76 in²
Xmax0.70″
Vd53.2 in³ calc.
Mms111 g calc.
BL11 T·m calc.
EBP44 — suits sealed calc.
Sensitivity, 1 W / 1 m87.4 dB calc.

General

Size12″
Voice coils4 Ω
RMS power150 W

Mounting dimensions

Ø12 1/2″cutout Ø10 13/16″mounting depth 5 1/4″magnet Ø≈ 7 1/16″
Cutout diameter10 13/16″
Mounting depth5 1/4″
Overall diameter12 1/2″

“≈” 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