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Kenwood eXcelon KFC-X688C

6"x8" Speakers

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Item # 113KFCX688

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Our take on the Kenwood eXcelon KFC-X688C

Your audio system will give the Kenwood eXcelon KFC-X688C 6"x8" speaker a rousing welcome when you introduce it into your vehicle.

Your audio system will give the Kenwood eXcelon KFC-X688C 6"x8" speaker a rousing welcome when you introduce it into your vehicle.

Engineered for high power handling and efficiency, the durable PBO (an ultra-rigid crystal polymer) woofer cone combines with its butyl rubber surround for superior bass. The PEI (polyetherimide) film tweeter fills in the details with vibrant highs. Grilles are not included. (Factory grilles are appropriate for most installations.)

Priced per pair

Product Highlights:

  • PBO (polyphenylenebenzobisoxazole) advanced fiber woofer with butyl rubber surround
  • 1-3/16" PEI film tweeter
  • frequency response 30-32,000 Hz
  • recommended power range 2-55 watts RMS
  • peak power handling 220 watts
  • sensitivity 92 dB
  • top-mount depth 2-9/16"
  • 2-year warranty

What's in the Box:

  • Two 2-way speakers
  • Two 11" lengths of speaker wire (each has female quick-slides on one end and bare wire on the other end)
  • 8 Self-tapping screws
  • Warranty Card
  • Important Safeguards

Hands-on research

Features and Specs

Design 2-way
Tweeter Design Balanced dome
Tweeter Composition Polyetherimide
Woofer Composition PBO advanced fiber
Woofer Surround Butyl rubber
Parts Warranty 2 Years
Labor Warranty 2 Years
Sensitivity 92 dB at 1 watt
Frequency Response 30 - 32k Hz
RMS Power Range (Watts) 2-55
Peak Power Handling (Watts) 220
Impedance (Ohms) 4
Top-mount Depth (Inches) 2 9/16
Bottom-mount Depth (Inches) 2 15/16

Product Research

Warranty Note


Woofers: The woofer cones are PBO advanced fiber. PBO is a high-performance fiber that has superior strength, thermal stability and very low moisture retention. Since PBO resists flexing and is heat-resistant, the speaker has lower distortion and improved power handling. The low moisture retention allows the speaker to retain its original performance for a longer period of time without being changed by the elements. For a smoother response and improved durability, each speaker uses a butyl rubber surround.

Tweeters:Each speaker uses a 1-3/16" PEI balanced-dome tweeter. PEI (Poly-Ether Imide) is a polymer film that has ideal sound characteristics, making it perfect for use as a tweeter. A PEI balanced-dome tweeter produces a wide soundstage for superior imaging.

Warranty Note

Warranty Note: Although these speakers come with a 1 year warranty card, they are covered by the Kenwood eXcelon 2 year warranty.

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 verify what’s in the box, 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.