Kicker CompQ 12" 4-Ohm DVC (42CWQ124)

12″ subwoofer · dual 4 Ω · 850 W RMS

Fs 37.8 HzQts 0.60Vas 0.88 ft³Xmax 0.91″

Recommended box

For a sedan, one sub, 850 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 volume1.09 ft³ (31 L)
Qtc0.80
Fc51 Hz
F3 (−3 dB, no cabin gain)47 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 14 3/16″
Open sealed box in designer

Ported

Net volume3.00 ft³ (85 L)
Tuning (Fb)28 Hz
Portslot 2 15/16 × 14 5/16″, 42 11/16″ long
Port velocity at 850 W65 ft/s
F3 (−3 dB, no cabin gain)24 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 18 7/8″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs37.8 Hz
Qts0.60
Qes0.639
Qms8.79
Vas0.88 ft³
Re (one coil)3.05 Ω
Sd78.5 in²
Xmax0.91″
Vd71.7 in³ calc.
Mms258 g calc.
BL17.1 T·m calc.
EBP59 — sealed or ported calc.
Sensitivity, 1 W / 1 m85.3 dB calc.

General

Size12″
Voice coilsdual 4 Ω
RMS power850 W

Mounting dimensions

Ø12 1/2″cutout Ø11 1/16″mounting depth 7 1/8″magnet Ø7 3/16″
Cutout diameter11 1/16″
Mounting depth7 1/8″
Overall diameter12 1/2″
Magnet diameter7 3/16″

“≈” 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 Kicker 12″ models