Kicker CompR 8" 4-Ohm DVC (48CWR84)

8″ subwoofer · dual 4 Ω · 300 W RMS

Fs 44.4 HzQts 0.79Vas 0.33 ft³Xmax 0.51″

Recommended box

For a sedan, one sub, 300 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 volume0.67 ft³ (19 L)
Qtc0.96
Fc54 Hz
F3 (−3 dB, no cabin gain)45 Hz
Example box (outside)10 1/4″ × 10 1/4″ × 17 1/8″
Open sealed box in designer

Ported

Net volume1.13 ft³ (32 L)
Tuning (Fb)34 Hz
Port2 round ports Ø2 1/2″, 18 9/16″ long
Port velocity at 300 W109 ft/s
F3 (−3 dB, no cabin gain)29 Hz
Example box (outside)31 3/8″ × 15 3/4″ × 6 11/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs44.4 Hz
Qts0.79
Qes0.836
Qms14.04
Vas0.33 ft³
Re (one coil)3.84 Ω
Sd29.2 in²
Xmax0.51″
Vd15 in³ calc.
Mms70 g calc.
BL9.5 T·m calc.
EBP53 — sealed or ported calc.
Sensitivity, 1 W / 1 m81.9 dB calc.

General

Size8″
Voice coilsdual 4 Ω
RMS power300 W

Mounting dimensions

Ø8 1/2″cutout Ø6 15/16″mounting depth 4 1/8″magnet Ø4 15/16″
Cutout diameter6 15/16″
Mounting depth4 1/8″
Overall diameter8 1/2″
Magnet diameter4 15/16″

“≈” 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 8″ models