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KICKER

Kicker 51KSC3504 KS-Series 3.5" Coaxial Speakers with .5" tweeters, 4-Ohm, Pair

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Availability: In Stock.
Fulfilled by AVLeaderz
Arrives Sunday, Apr 26
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Model: 51KSC3504


Features

  • KICKER KS-Series Speakers let you play at concert-like volume, yet maintain the smoothness and subtlety to please even the most selective ear.
  • The high-performance woofers utilize internally dampened polypropylene cones and tough rubber surrounds for outstanding midrange detail and pounding bass!
  • Completely redesigned with new cones, voice coils and crossovers, KS-Series Coaxial Speakers are a serious upgrade from your factory sound.
  • Featuring zero (or minimal) tweeter protrusion, you get a perfect fit in almost every vehicle on the road today, without modifications.

Brand: KICKER


Speaker Maximum Output Power: 100 Watts


Connectivity Technology: Wired


Mounting Type: Flush Mount


Material: Polypropylene, Rubber, Silk, Neodymium


Mounting Type: Flush Mount


Enclosure Material: Polypropylene, Rubber, Silk, Neodymium


Speaker Type: Coaxial


Additional Features: Hi Res Audio


Antenna Location: Automotive


Subwoofer Diameter: 89 Millimeters


Is Waterproof: FALSE


Warranty Type: Limited


Control Method: Touch


Speaker Size: 3.5 Inches


Woofer Diameter: 89 Millimeters


Tweeter Diameter: 13 Millimeters


MP3 player: No


Specific Uses For Product: Automotive


Number of Audio Channels: 2.0


Impedance: 4 Ohms


Connectivity Technology: Wired


Subwoofer Connectivity Technology: Wired


Connectivity Protocol: Coaxial


Audio Driver Type: Dynamic Driver


Brand: KICKER


Model Number: 51KSC3504


Model Name: 51KSC3504


Built-In Media: 51KSC3504


Number of Items: 2


UPC: 713034058397


Manufacturer: Kicker


Warranty Description: 1-Year Manufacturer Warranty


Speaker Maximum Output Power: 100 Watts


Unit Count: 1.0 Count


Item Dimensions D x W x H: 1.88"D x 3.07"W x 3.07"H


Item Weight: 1.8 Pounds


Compatible Devices: Smartphone, Tablet, MP3 Player, Desktop, Television, Projector, Laptop


Power Source: Corded Electric


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Apr 26

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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The 4" factory speakers in my LC76 Land Cruiser were murky and lacked bass. These KIckers bolted in directly. They include 4 mounting tabs. My installation only required two and the remaining two were easily removed with pliers. The sound is noticeably more clear. I am getting more volume. While bass remains limited as is to be expected from a 4" speaker, it is more controlled and crisp. Very oleased with the swap. Recommended. ... show more
Reviewed in the United States on March 13, 2026 by sjp3003
    • Typical Kicker sound. It's great.
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Installed these in the dash of a 2016 Subaru Crosstrek. They completely changed the sound in the car. The highs are very clear and pleasant. Awesome sound. Very affordable. Everything needed to install is included.
Reviewed in the United States on March 22, 2026 by Augustus
    • Sound great
Model: 51KSC3504
Review Image by Daniel Benítez
Review Image by Daniel Benítez
Review Image by Daniel Benítez
It sound great i highly recommend it better improvement happy customer
Reviewed in the United States on April 3, 2026 by Daniel Benítez
    • Wow
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Im not an audiophile, but these sound great in my 2006 f150 with Kenwood radio. Bass is actually decent for a 6x8. I cheaped out and got off brand aftermarket speakers replace the stocks, then replaced with these and they sound much better
Reviewed in the United States on March 3, 2026 by Frank Christmas
    • Crystal Clear Sound with Powerful Bass!
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The KICKER 51KSC69304 6x9” Coaxial Speakers are a massive upgrade! The clarity is outstanding, with crisp highs, detailed mids, and a surprisingly deep, punchy bass response for a coaxial setup. They handle power well and stay distortion-free even at higher volumes. Installation was straightforward, and they fit perfectly in my setup. If you’re looking for a high-quality 6x9” speaker that delivers balanced and powerful sound, these are a fantastic choice! ... show more
Reviewed in the United States on February 18, 2025 by rdem78
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For a small speaker they sound great. 6.5” didnt fit and these ate factory for 2003 silverado read door. Better than expected
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The Kicker 51KSC69304 KS-Series 6x9 3 way speakers are absolutely insane. I put them in my truck, hit play, and suddenly my backseat feels like front row at a rock festival except with more potholes, snow, and the smell of old snacks. Bass that rattles your teeth, mids that make my singing sound semi-professional, and highs so crisp I can hear my GPS shouting at me in stereo clarity. Honestly, I didn’t know speakers could feel this alive I half expect my truck to start headbanging on its own. Durable, powerful, and ridiculously fun, these speakers make every drive through the Alaskan wilderness feel like an epic road trip montage. And if I had neighbors up here, they’d probably call the cops but honestly, it’s just me, the moose, and the mountains, so I crank it as loud as I want. Absolute chaos in the best way. ... show more
Reviewed in the United States on November 26, 2025 by J148

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