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Kicker KM42CW

4" 2-way marine speakers (2-ohm)

Item #: 20641M42CW

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5 Reviews

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Small speakers, sweet sound

Kicker's KM42CW 4" marine speakers sound terrific and look great on any boat. Designed for life on the water, these speakers feature sealed motors, rubber cone surrounds, and locking terminal covers to keep spray away from the internal componentry. They'll also stand up to harsh sunlight, thanks to special UV treatments on the cones, surrounds, baskets, and grilles. Whether you're on fresh water or salt, these speakers will give you years of outstanding performance. And their 2-ohm impedance will draw a little extra power out of your marine amplifier.

The package includes white and charcoal grilles so these speakers will match up with just about any interior.

Rugged and versatile

These 4" speakers are rugged enough for marine duty, but they're easy on your ears. The durable poly woofers and balanced dome tweeters cut through wind, waves, and engine roar to deliver great sound without annoying harshness. Whether you're mounting them in a bulkhead, or installing them in a set of Kicker's custom enclosures, Kicker KM42CW speakers will make your day on the water just a little bit better than it was already.

Product Highlights:

  • 2-way 4" marine speakers (pair)
  • UV-treated polypropylene woofer with Santoprene rubber surround
  • 1/2" PEI balanced dome tweeter w/ neodymium magnet
  • stainless steel mounting hardware included
  • sealed motor structure and locking terminal covers
  • comes with both charcoal and white grilles
  • power range: 2-50 watts RMS (150 watts peak power)
  • frequency response: 60-20,000 Hz
  • sensitivity: 89 dB
  • impedance: 2 ohms
  • mounting depth: 1-15/16"
  • warranty: 1 year
  • Our 60-day money-back guarantee

Kicker KM42CW Reviews

Average Customer Review:

5 reviews
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Kicker KM42CW

Written By John, Illinois on Saturday, September 05, 2015

Crutchfield Customer Review (What's this?)

Great sound.

Great Sound

Written By Tim, Tennessee on Sunday, July 05, 2015

Crutchfield Customer Review (What's this?)

Great sounding pair of little speakers to balance out my system in my Tahoe boat.

Pros: The sound for the size.

km4 speaker

Written By Anonymous, Crocker mo on Tuesday, October 14, 2014

Crutchfield Customer Review (What's this?)

Great sounding speaker for the size. Really surprised at the way they have sealed these speakers from the elements. The magnet is sealed with and they have put shrink wrap on the connectors on the speaker to seal them. Great speakers.

Pros: Has tweeters built in look great come with gun metal gray and white grills

Cons: None

Kicker KM42CW speakers

Written By John, Palm Coast, Fl 32137 on Sunday, August 17, 2014

Great sound and good looking.

Pros: Nice compact speakers. Easy to install. Liked the white/graphite coffee color options.

Cons: None

kicker KM42CW speakers

Written By john, palm coast, Fl 32137 on Sunday, August 17, 2014

Crutchfield Customer Review (What's this?)

Great sound and cool looking speakers.

Pros: Compact design. Easy to install. Great sound. Liked the white or graphite cover color options.

Cons: None

Hands-on research

What's in the box?

Download owner's manual

  • Two 2-way speakers (each has a 16" length of speaker wire attached terminated with male quick slides)
  • 2 Charcoal grilles
  • 2 White grilles
  • 2 Plastic terminal covers
  • Two 7-1/2" Zip ties
  • Two 0.25" Crimp on female quick slides
  • Two 0.187" Crimp on female quick slides
  • Eight 1" Self-tapping stainless steel screws
  • 8 Stainless steel speed clips
  • Owner's manual (English/ Spanish/ German/ French)
  • Note about available unloaded enclosure

Product Research


Marine-Ready: The Kicker KM series marine coaxial speakers are engineered to meet or exceed industry standards for environmental humidity and corrosion. The speakers feature sealed motors, cones, and locking wire terminal covers.

Grilles: Two pair of grilles are included; choose charcoal or white.

Terminal Cover: The speakers feature splash and spray resistant, locking terminal covers. These covers have water-resistant gaskets to prevent terminal corrosion and electrical shorting.

Stainless Steel Hardware: The provided hardware is forged from corrosion-proof stainless steel.

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.