Year-End SaleEnds 1/1/26. Limited quantities. No rainchecks.

Main Content
product image

KICKER - CompRT 8" Dual-Voice-Coil 1-Ohm Subwoofer - Black

Model: 40CWRT81
SKU: 1681975
This item is no longer available in new condition. See similar items below
  • Key Specs
    • RMS Power: 600 watts (The maximum amount of continuous power the device is able to handle.)
    • Peak Power Handling: 600 watts (The maximum amount of power an electronic device, like a speaker, can handle without damage. This refers to short bursts of power, while root mean square (RMS) power handling indicates the amount of continuous power a device can sustain. Higher levels of distortion can also occur at peak power levels when the device is powered beyond its recommended usage.)
    • Impedance: 1 ohms (Describes the resistance of an electric signal throughout the system. Devices with low impedance require less power to deliver optimal signals but are more at risk for damage from overloading. Higher impedance requires more power but is more protected from overload damage.)
    • Dual Voice Coils: true
    • Woofer Size: 8 inches
    • Mount Depth: 2.6875 inches
    • Woofer Composition: Injection-molded polypropylene
    • Woofer Surround Material: Santoprene
  • General
    • Product Name: CompRT 8" Dual-Voice-Coil 1-Ohm Subwoofer
    • Brand: KICKER
    • Model Number: 40CWRT81
  • Audio Power
    • RMS Power: 600 watts (The maximum amount of continuous power the device is able to handle.)
    • Peak Power Handling: 600 watts (The maximum amount of power an electronic device, like a speaker, can handle without damage. This refers to short bursts of power, while root mean square (RMS) power handling indicates the amount of continuous power a device can sustain. Higher levels of distortion can also occur at peak power levels when the device is powered beyond its recommended usage.)
    • Integrated Amplifier: false
  • Audio
    • Impedance: 1 ohms (Describes the resistance of an electric signal throughout the system. Devices with low impedance require less power to deliver optimal signals but are more at risk for damage from overloading. Higher impedance requires more power but is more protected from overload damage.)
    • Efficiency: 84.8 decibels
  • Features
    • Dual Voice Coils: true
  • Dimensions
    • Woofer Size: 8 inches
    • Cutout Diameter: 7 inches
    • Mount Depth: 2.6875 inches
    • Magnet Size: 24 ounces
    • Product Height: 1 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
    • Product Width: 8.325 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Depth: 1 inches (The out of box depth of the item. Depth is measured as the distance from the front of the item to the back as it would be primarily used or placed.)
    • Product Weight: 7.3 pounds (The out of box weight of the item.)
  • Design
    • Woofer Composition: Injection-molded polypropylene
    • Woofer Surround Material: Santoprene
    • Frame Material(s): Cast
  • Enclosure
    • Enclosed: false
  • Other
    • UPC: 713034065487

This Kicker CompRT 40CWRT81 subwoofer features a 8", cone with Santoprene surround and handles up to 600W peak power (300W RMS), so you can easily achieve booming bass in your vehicle.

Geek Squad® Installation Recommended
Visit your local Best Buy store for more information.

  • Handles up to 600W peak power (300W RMS): For rich, dynamic bass.
  • 84.8dB sensitivity: Delivers powerful output.
  • 7" mounting cutout; 2-11/16" mounting depth: For easy installation in your vehicle.
  • 8" polypropylene woofer cone: For tremendous bass.
  • 1 ohms impedance: Conducts power to keep speakers working at optimal levels.
  • Santoprene surround: For truly linear cone movement.
  • Cast-aluminum basket: With unique heat management system for lasting use.
Whats Included
  • CompRT 8" Dual-Voice-Coil 1-Ohm Subwoofer