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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
  • Authorized Internet Dealer
*Warranty: 1 Year Manufacturer warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to for replacement within 30 days from the original date of purchase with proper return authorization. After the 30 day time period, products must be returned to their original manufacturer for the remainder of the manufacturer's warranty period.