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Kicker KSC68 (51KSC6804)

150W Peak (75W RMS) 6x8" KS Series 2 Way Coaxial 4-ohm Speakers

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• 150 watts Peak Each, 75 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Learn more about the 51ksc6804
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List price $149.99
Thanks , You Pay:
-13%

$129.99

/pair  with warranty
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Description


Kicker brand icon

Authorized dealer


Kicker 51KSC6804

KICKER KS-Series Speakers let you play at concert-like volume, yet maintain the smoothness and subtlety to please even the most selective ear. Internally dampened polypropylene cones and durable rubber surrounds assist the woofers in creating precise midrange and midbass, while high-quality silk-dome tweeters deliver natural, detailed highs.

With less than a 2.5-inch mounting depth and zero tweeter protrusion, the KSC680 is a perfect fit in almost every vehicle on the road today, including 5 x 7-inch speaker holes. They work best with 15 to 75 watts of recommended power.


Product Details:

  • 6" x 8" KS Series 2-way Coaxial Car Speakers
  • Power Handling:
    • Peak: 300 watts per pair / 150 watts each
    • RMS: 150 watts per pair / 75 watts each
  • Polypropylene cone material
  • Rubber speaker surround
  • 3/4" Silk Dome tweeters
  • Neodymium magnet motor structure
  • Top-mount Depth: 2-1/4"
  • Thin-mount design easily fits behind factory grilles
  • Impedance: 4 ohm
  • Frequency Response: 45 - 21000 Hz
  • Sensitivity: 90 dB
  • Authorized Internet Dealer
  • MFR #: 51KSC6804
  • 2 Year Manufacturer's Warranty

  • Priced Per Pair

Product history:

Kicker 51KSC6804 thumbnail
(newest, current model)
Kicker KSC680 thumbnail
(previous model, replaced by Kicker KSC68 (51KSC6804))

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Specifications & Details


Speaker Specifications
Series
KS Series
Priced Per
Pair
Number of Speakers
2
Speaker Size
6" x 8"
Design
2-way Coaxial
Tweeter Design
Dome
Tweeter Size
3/4"
Tweeter Composition
Silk
Woofer Composition
Polypropylene
Woofer Surround
Rubber
Peak Power Handling
150 watts
RMS Power Handling
75 watts
Total PEAK Per Pair/Set
300 watts
Total RMS Per Pair/Set
150 watts
Sensitivity
90 dB
Frequency Response
45 - 21000 Hz
Impedance (Per Voice Coil)
4 ohm
Shallow Mount Installation
Yes
Magnet Type
Neodymium
Top-Mount Depth (Mounting Depth)
2-1/4"
Bottom-Mount Depth
2-5/8"
Cutout Dimensions
5 x 7-3/16 
CTA-2031 Compliant
No
General specifications
Marine Certified
No
Hi-Res Certified
No
Color
Black
Illumination
None
Speaker Grilles
No
Includes Damping Kit
without Damping Kit
What is in the box?
Paperwork
User manual
WITB: Speakers
Speakers (2)
Warranty and Return Policy
Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

51KSC6804

Weight:

4.60lbs

Internal SKU:

51ksc6804

Internal Product ID:

203319

Customer Ratings & Reviews


Kicker KSC68 (51KSC6804) thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

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Excellent speakers. I own the kicker cs series and I wanted to give the kicker ka series a try. Well worth the money and the quality and durability is exceptional. Thank you sonic electronix.

By Mike on June 21, 2025 Checkmark Icon Verified purchase


Sound good so far on stock radio

Sound good so far just running off the factory radio. Noticeably better than the 10yr old OEM speakers. I plan to add an amp soon and hopefully that'll wake them up some. Overall I'm happy with them. They fit the stock locations without any mods other than removing the screw hole tabs from the top and bottom so they didn't interfere with the baffles I was using with them.

By KEGinTX on May 15, 2025 Checkmark Icon Verified purchase
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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.