Kicker Comp 12" 4-Ohm SVC (43C124)

12″ subwoofer · 4 Ω · 150 W RMS

Fs 30 HzQts 0.56Vas 3.36 ft³Xmax 0.41″

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)
Qtc0.96
Fc51 Hz
F3 (−3 dB, no cabin gain)44 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)37 Hz
Portslot 1 9/16 × 14 5/16″, 11 1/8″ long
Port velocity at 150 W46 ft/s
F3 (−3 dB, no cabin gain)34 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 14 3/8″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs30 Hz
Qts0.56
Qes0.591
Qms10.22
Vas3.36 ft³
Re3.65 Ω
Sd≈ 76 in²
Xmax0.41″
EBP51 — sealed or ported calc.
Sensitivity, 1 W / 1 m88.4 dB calc.

General

Size12″
Voice coils4 Ω
RMS power150 W

Mounting dimensions

Ø12 5/8″cutout Ø11″mounting depth 5 7/8″magnet Ø5 3/4″
Cutout diameter11″
Mounting depth5 7/8″
Overall diameter12 5/8″
Magnet diameter5 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 Kicker 12″ models