Kenwood KFC-W2005

8" 4-ohm Component Subwoofer

  • Kenwood KFC-W2005


  • Kenwood KFC-W2005


  • Kenwood KFC-W2005

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Item #: 113W2005
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Our take on the Kenwood KFC-W2005

by Steven Johnson

What's a component sub and why would I want one?

A component sub is simply a speaker that's designed to reproduce bass once it's installed in a compatible enclosure. Think about the impact of a movie soundtrack in a big theater or even in your own home HDTV setup. A component sub can add the same kind of power to the music in your car. And a car sub is not all about the boom that you hear on a street corner (although that's cool too) - you can pair a component sub with your choice of enclosure to get bass just the way you like it, from tight and punchy to fat and loose. And once you experience music in your car with a well-tuned subwoofer, you'll never go back.

Sporting the "tornado" woofer design, Kenwood's KFC-W2005 8" subwoofer generates a whirlwind of bass with its silver pearl mica-injected polypropylene woofer. Three raised ridges increase the cone's rigidity and dampen unwanted resonances for improved bass clarity.

Kenwood uses a two-layer vented voice coil, vented extended pole piece, and bumped-back plate so this sub won't bottom out when you put it to the test. The urethane surround stands up to extremes of temperature and humidity in the car environment. Designed for use in sealed or ported enclosures, the KFC-W2005 is extremely efficient.

  • silver pearl mica injection-molded polypropylene woofer cone
  • tornado-type raised ridge construction for improved rigidity and dampened resonance
  • urethane foam surround
  • extended pole piece and bumped back plate for increased cone excursion
  • power range 26-250 watts RMS
  • peak power 500 watts
  • frequency range 30-1000 Hz
  • sensitivity 91 dB SPL
  • top-mount depth 3-15/16"
  • sealed box volume 0.5-0.8 cubic feet
  • ported box volume 0.5-0.8 cubic feet
  • Recommended Q-Logic Box Type: none
  • 1-year warranty
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Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
8 -inch
4 ohms
Cone Material
Pearl Mica IMPP
Surround Material
Urethane Foam
Ideal Sealed Box Volume (cubic feet)
Ideal Ported Box Volume (cubic feet)
Port diameter (inches)
Port length (inches)
Dual Voice Coil
91 dB at 1 watt
Frequency Response
30 - 1000 Hz
RMS Power Range (Watts)
Peak Power Handling (Watts)
Top Mount Depth (inches)
3 15/16
Bottom Mount Depth (inches)
Cutout Diameter or Length (inches)
7 1/8
Vas (liters)
Fs (Hz)
Xmax (millimeters)
Parts Warranty
1 Year
Labor Warranty
1 Year
Product Research
What's in the box?

Download owner's manual

  • Silver 8" Woofer
  • 1 Self-adhesive foam strip
  • 4 Self-adhesive gaskets
  • 8 Mounting screws
  • 8 Speed clips
  • Cutout template
  • Warranty card
  • Instruction manual

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Power Handling Note


Woofers: The cone is constructed of silver Pearl Mica Injection-Molded Polypropylene. Uniform pearl mica crystals form an overlapping structure that adds strength and heat resistance to polypropylene; the result is reduced distortion and improved reliability. The woofer uses a urethane foam surround.

Tornado Woofer Cone: The cone is formed with three raised ridges around the circumference of the cone. The width of each ridge is graduated, making a tornado-like appearance. The ridges make the Tornado Cone much more rigid than conventional cones, with resonances that are more than an octave higher. Additionally, the Tornado Cone's resonances are of a more random nature than those of conventional cones, which reduces their intensity. Since these resonances are lower in amplitude and far above the woofer's useable frequency range, they are much less audible, resulting in clearer, more detailed bass sound.

Surround Material: The urethane foam surround has very high internal loss, which reduces speaker cone distortion.

Extended Pole Piece: The pole piece has been extended to provide a more linear magnetic field for woofer operation. This lowers distortion and provides the woofer with better low frequency response.

Vented Pole Piece: The vented pole piece allows air to circulate in the voice coil gap; air circulating in the voice coil gap helps dissipate heat and results in greater power handling and increased reliability.

Vented and Bumped Back Plate: The back plate has been stepped deeper to allow the woofer more room for excursion without bottoming out. This enables the speaker to be used in a smaller enclosure. Additionally, the back plate has a vent, which efficiently and quietly circulates cool air around the voice coil. By keeping the voice coil cooler, power handling is improved.

Voice Coil: The two layer vented voice coil keeps the woofer cooler and is designed for higher power handling.

Enclosure Compatibility: The woofer is designed to work best in a sealed enclosure with an internal volume of 0.6 cubic feet, or a ported box of 0.56 cubic feet (port diameter 2", port length 5").

Power Handling Note

Power Handling: Although the specifications section of the manual lists two power handling specifications, "RMS Power Handling" and "Peak Power Handling", Kenwood has established "Rated", "Maximum" and "Peak" input power ratings for this woofer. The "Rated" input power spec is equivalent to the "RMS Power Handling" spec listed in the manual, the "Maximum" input power rating is a continuous power handling specification, and the "Peak" input power rating is equal to the "Peak Power Handling" spec listed in the manual. The power ratings are as follows:

  • "Rated" input power: 125 watts 
  • "Maximum" continuous input power: 250 watts 
  • "Peak" input power: 500 watts
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