Kicker Comp 8" 4-Ohm SVC (43C84)

8″ subwoofer · 4 Ω · 100 W RMS

Fs 39.8 HzQts 0.57Vas 0.56 ft³Xmax 0.43″

Recommended box

For a sedan, one sub, 100 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 volume0.57 ft³ (16 L)
Qtc0.80
Fc56 Hz
F3 (−3 dB, no cabin gain)53 Hz
Example box (outside)10 1/4″ × 10 1/4″ × 14 3/4″
Open sealed box in designer

Ported

Net volume1.27 ft³ (36 L)
Tuning (Fb)34 Hz
Portslot 1 9/16 × 14 5/16″, 37 1/8″ long
Port velocity at 100 W28 ft/s
F3 (−3 dB, no cabin gain)30 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 9 5/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs39.8 Hz
Qts0.57
Qes0.61
Qms7.83
Vas0.56 ft³
Re3.97 Ω
Sd32.7 in²
Xmax0.43″
Vd13.9 in³ calc.
Mms63 g calc.
BL10.1 T·m calc.
EBP65 — sealed or ported calc.
Sensitivity, 1 W / 1 m84.2 dB calc.

General

Size8″
Voice coils4 Ω
RMS power100 W

Mounting dimensions

Ø8 1/2″cutout Ø6 15/16″mounting depth 4″magnet Ø≈ 4 1/2″
Cutout diameter6 15/16″
Mounting depth4″
Overall diameter8 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 Kicker 8″ models