Kicker CompRT 12" 1-Ohm DVC (43CWRT121)

12″ subwoofer · dual 1 Ω · 500 W RMS

Fs 29.4 HzQts 0.59Vas 1.92 ft³Xmax 0.41″

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 volume1.80 ft³ (51 L)
Qtc0.85
Fc42 Hz
F3 (−3 dB, no cabin gain)38 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 9 1/16″
Open sealed box in designer

Ported

Net volume3.04 ft³ (86 L)
Tuning (Fb)30 Hz
Portslot 2 3/16 × 14 5/16″, 25 3/4″ long
Port velocity at 500 W63 ft/s
F3 (−3 dB, no cabin gain)26 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 16 5/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs29.4 Hz
Qts0.59
Qes0.616
Qms13.72
Vas1.92 ft³
Re (one coil)1.01 Ω
Sd78.5 in²
Xmax0.41″
Vd32.5 in³ calc.
Mms196 g calc.
BL7.7 T·m calc.
EBP48 — suits sealed calc.
Sensitivity, 1 W / 1 m85.5 dB calc.

General

Size12″
Voice coilsdual 1 Ω
RMS power500 W

Mounting dimensions

Ø12 9/16″cutout Ø11″mounting depth 3 3/4″magnet Ø≈ 7 1/8″
Cutout diameter11″
Mounting depth3 3/4″
Overall diameter12 9/16″

“≈” 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