Kicker :: 40CWRT81 :: $115.45

Kicker 40CWRT81

Item# 39355

8" Dual 1 Ohm CompRT Shallow-Mount Thin Car Subwoofer - Competition Series

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What's Included:

  • Manual (English/ Spanish/ German/ French)
  • Kicker logo stickers
  • One 8" Dual 1-ohm voice coil subwoofer
  • Template on box
  • Product Information Inside Box
  • Owner's Manual

Product Highlights:

  • top-mount depth: 2-5/8"
  • sealed box volume: .20 - 1.25 cu. ft.
  • peak power handling: 600 watts
  • sensitivity: 84.8 dB
  • rubber surround
  • ported box volume: 1.25 - 1.75 cu. ft.
  • 8" subwoofer with dual 1-ohm voice coils
  • power handling: 300 watts RMS
  • injection-molded polypropylene cone
  • frequency response: 30-500 Hz

The CompRT Eight-Inch Subwoofer is an all-weather thin sub with a pair of 1Ω voice coils. This shallow-mount subwoofer uses a large-diameter, progressive-roll spider and UV-protected Santoprene surround for truly linear cone movement. A uniquely shaped back plate and bumped top plate allow for full voice-coil movement. All this technology creates outstanding bass in a subwoofer less than three inches deep! The CompRT Eight-Inch Subwoofer works best with a sealed or ported enclosure and 300 watts of recommended power.


ported box volume: 1.25 - 1.75 cu. ft.
RMS Power Range (Watts) 100-300
Vas (liters) 10.32
Cutout Diameter or Length (inches) 6 7/8
Surround Material Santoprene
Dual Voice Coil Yes
Impedance 1 ohms
Fs (Hz) 49.2
Sensitivity 84.8 dB at 1 watt
Free-Air No
Qts 0.565
Top Mount Depth (inches) 2 5/8
Size 8 -inch
Cone Material Injection Molded Poly
Frequency Response 30 - 500 Hz
Peak Power Handling (Watts) 600
sealed box volume: .20 - 1.25 cu. ft.
  • Subwoofers are usually sold as a single unit unless otherwise noted.
  • UPC: 713034065487
  • Weight: 7.35
*Warranty: 1 Year warranty.
1 Year warranty from implies that repairs must be returned to, not the manufacturer. More information can be found in our help section under returns & warranties.
What's not covered : Misuse, abuse, defacement, physical damage of any kind, and improper installation / operation. Video and multimedia equipment with damaged or cracked screens.Subwoofers and speakers are not warranted against being blown, burned or abused.