Kicker KS650

6-3/4" 2-way car speakers

  • Kicker KS650


  • Kicker KS650

  • Kicker KS650

Item #: 2068KS650

Review Summary

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Original price $74.99
We recommend this similar item, or shop all 6-3/4" Speakers

Our take on the Kicker KS650

by Buck Pomerantz

Why replace your factory speakers?

The speakers that originally came in your car were made from inexpensive materials, designed to create acceptable sound at the lowest possible cost to the manufacturer. If you love music, you deserve better. Name-brand aftermarket speakers deliver fuller, richer sound with considerably more detail and nuance, and they're capable of playing louder and cleaner than factory speakers. Connect new speakers to your factory radio and you'll get the best possible sound from your dealer-equipped system. Pair them up with a new car stereo for a level of enjoyment that can rival a high-fidelity home audio experience.

If you're into car audio, you've heard how a good set of speakers can transform your system's sound. Kicker KS Series speakers use superior materials and construction to deliver crystal-clear music in your ride.

The KS650 6-3/4" speakers use a durable Santoprene™ rubber surround to suspend the polypropylene woofer cone in a rigid basket. You'll hear strong low-frequency performance, so your tunes sound full at any volume.

The polymer 3/4" dome tweeter delivers all the sonic details and dynamics that make music exciting. Replace your worn-out speakers with some KS Series coaxials, and bring the "live music" experience to your car's interior.

Note: Kicker describes this model as a 6-1/2" speaker. Most manufacturers designate this same frame size as a 6-3/4" speaker. For simplicity's sake we list it as a 6-3/4" speaker.

See more info on this item


  • 2-way 6-3/4" speakers (pair)
  • polypropylene woofer cone with Santoprene™ surround
  • 3/4" Kaladex dome tweeter
  • power range: 6-65 watts RMS (195 watts peak power)
  • frequency response: 40-21,000 Hz
  • sensitivity: 90 dB
  • top-mount depth: 2-1/8"
  • warranty: 1 year
  • Our 60-day money-back guarantee

Priced per pair

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Tweeter Design
Tweeter Composition
Woofer Composition
Woofer Surround
Santoprene rubber
Parts Warranty
1 Year
Labor Warranty
1 Year
90 dB at 1 watt
Frequency Response
40 - 21k Hz
RMS Power Range (Watts)
Peak Power Handling (Watts)
Impedance (Ohms)
Top-mount Depth (Inches)
2 1/8
Bottom-mount Depth (Inches)
2 5/16
Cutout Diameter or Length (inches)
5 11/16
Product Research
What's in the box?

Download owner's manual

  • Two 2-way 6.75" speakers
  • 2 Grilles
  • 2 Grille rings
  • Two 12" lengths of speaker wire (each length of wire hs female quick-slides on one end and tinned wire on the other end)
  • 4 Red butt connectors
  • 8 Mounting screws
  • 8 Speed clips
  • Owners/Warranty information booklet

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.


Polypropylene Woofer: The curvilinear, gray, 6.75-inch Polypropylene woofer cones, Santoprene surround, and newly designed basket gives this KS Coaxial speaker the extra brawn to deliver a smooth, rich sound at any volume.

Kaladex Tweeter: Each speaker features a single, 0.75-inch, Kaladex-domed tweeter that contain a stout neodymium magnet dipped in ferrofluid for maximum coolness, recreating highs that rival live performance.

Mounting Options: Each speaker features a six-hole pattern to fit various 6.75-inch speaker opening applications.

Grilles: The KS650 comes supplied with a pair of graphite-colored plastic pinwheel-style speaker grilles.

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Kicker KS650 Reviews

Average Customer Review:

5 people say:

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5 out of 5

Kicker KS650

Written By Horselady, Denham Springs, La. on Friday, December 17, 2010
Crutchfield Customer Review (What's this?)
Impressive speaker. Great sound quality. Can't beat it for the money.
1 out of 1 people found this helpful
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4 out of 5

Sound Great with external Amplification. O.K. otherwise.

Written By Chris D., Windham, ME on Wednesday, November 10, 2010
Crutchfield Customer Review (What's this?)
Fantastic shipping and packaging; was prompt. Install went O.K. Crutchfield says they "fit" with having to drill new screw holes. However, I also found the speaker cut-outs in my '08 PT to be too large. It was necessary to shift the speakers slightly to one side and only put screws in on the lower right corner (room for 2 screws). The speakers completely fill the cut-out and I was able to use some silicone to temporarily hold the seal but there isn't space to screw in 4 all the way around. A better option would have been a plastic spacer to attach the speakers to and then to the doors, similar to what they use when installing the 5 1/4" or the 6 1/2" inch speakers in the larger factory cut-outs. I'm not fond of the way I currently have them installed and will be pursuing other options (tearing apart the factory speaker baskets?) since I am installing Dynamat as well. The speakers sound "good" when played with my 45w x 4 JVC head unit. I wouldn't recommend using them with less power as they actually perform MUCH better when I experimented with an external amplifier that I usually use for my Subwoofer.
1 out of 1 people found this helpful
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3 out of 5

bad lows

Written By tee, dallas, tx on Monday, August 23, 2010
set this up with bazooka amp from crutchfield here and it rattled as soon as it was
turned on. Turn the amp to flat and high it sounds good...but still I was expecting more
lows from KICKER brand but not this time. Sending them back regardless of stocking
fee..for it while sit and rot only..
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5 out of 5

Awesome Coaxials

Written By namanc6, San Antonio, TX on Saturday, July 10, 2010
I'm running these off of an old alpine head unit. I think maybe 14 or 15 watt rms. I bought these ks680's for my 94 bronco to fit into the mid panel. They bolted on near perfectly. I say near b/c I had to bend the top and bottom lips just a bit to bolt in. no biggie b/v it didn't affect the shape of the speaker. well once installed I was so impressed with the all around range from lows to highs, I replaced the 1 month old infinity 6032si, which I had originally bought for the front doors, with the ks650's. This time I had to drill a couple holes to bolt these in and use some shims, but these things sound GREAT! I was planning on buying a couple subs but I don't think I'll have to for these. They thump hard and scream hard. I absolutely love these speakers. Great buy. I really don't think i could have made a better buy, especially for the price compared to some of the other "higher" end coaxials. Very satisfied and I will be a loyal Kicker buyer.
2 out of 2 people found this helpful
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4 out of 5


Written By david, florida on Friday, August 08, 2008
these speakers are nice but not great. sound is crisp mids are nice just not to impressed with the highs. overall pretty good.
4 out of 10 people found this helpful
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For a more in-depth review and enhanced detailed information on the Kicker KS650, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_2068KS650/Kicker-KS650.html ).