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KICKER

KICKER 51KSC69304 KS-Series 6x9 3-Way Speakers with 1" and .75" tweeters, 4-Ohm, Pair

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Availability: In Stock.
Fulfilled by AVLeaderz
Arrives Sunday, Jul 26
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Model: 51KSC69304


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.

Description

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 for 2020 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. Experience your music as a component system with separate tweeters, or as a high-end coaxial system. In addition to the coaxial options, you can surface mount the tweeter, angle it in a custom direction, or use the articulating tweeter pod to get perfect imaging and soundstage. 51KSC2704 51KSC3504 51KSC404 51KSC4604 51KSC41004 51KSC504 51KSC6504 51KSC6704 51KSC6804 51KSC6904 51KSC69304

Brand: KICKER


Speaker Maximum Output Power: 300 Watts


Frequency Response: 21 KHz


Connectivity Technology: Wired


Audio Output Mode: Stereo


Audio Output Mode: Stereo


Mounting Type: Flush Mount


Enclosure Material: Polypropylene, Rubber, Neodymium, Silk


Speaker Type: Coaxial


Additional Features: Hi Res Audio


Antenna Location: Automotive


Color: Black


Is Waterproof: FALSE


Warranty Type: Limited Warranty


Control Method: Touch


Speaker Size: 9 Inches


Woofer Diameter: 6 Inches


Tweeter Diameter: 0.71 Inches


Specific Uses For Product: Vehicle


MP3 player: No


Unit Count: 1.0 Count


Item Dimensions D x W x H: 4.4"D x 11.9"W x 18.6"H


Item Weight: 8.15 Pounds


Compatible Devices: Smartphone, MP3 Player, Tablet


Compatible with Vehicle Type: Car


Power Source: Corded Electric


Brand: KICKER


Model Number: 51KSC69304


Model Name: 51KSC69304


Built-In Media: 51KSC69304


Warranty Description: 1-Year Manufacturer Warranty


Number of Items: 1


UPC: 713034045311


Manufacturer: Kicker


Speaker Maximum Output Power: 300 Watts


Frequency Response: 21 KHz


Number of Audio Channels: 2.0


Impedance: 4 Ohms


Connectivity Technology: Wired


Wireless Technology: No Wireless Communication Technology


Subwoofer Connectivity Technology: Wired


Connectivity Protocol: Coaxial


Audio Driver Type: Dynamic Driver


Audio Driver Size: 6.3 Inches


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jul 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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Top Amazon Reviews

    • Huge Upgrade
Model: 51KSC6504
Upgraded VA WRX stock speakers to these kickers and it’s a huge upgrade, strong bass, crisp audio quality, louder. Great upgrade even with stock head unit. Its a great upgrade especially for the money. Easy to install just need an adapter and a bracket and it fits perfectly.
Reviewed in the United States on June 25, 2026 by no
    • Great sound quality and Fits in a Jeep JL
Model: 51KSC3504
51KSC3504 Fits perfectly without modifications in the front upper dashboard position of a Jeep Wrangler JL. Installs in a short time especially if you buy a tweeter plug and play adapter harness. It really fills out the sound as compared to the stock 2.5" speakers. I also got the 4" 51KSC404 to replace the knee panel speakers on the Jeep JL and I wanted to keep the existing speaker pods versus tear apart the complete dash. The three screw adapter ring these come with matches the jeep stock pods, but the speaker base is slightly wider than the OEM hole so I had to grind out about 1/8" of plastic from the factory pods. It only took about 5 minutes per pod so it wasn't horrible, but make sure you have something you can remove some plastic with to make these seat fully into the pod. Sound is great and really fills out the base from the front of the vehicle. ... show more
Reviewed in the United States on June 10, 2026 by MF
    • Great speakers! Love the paper cones! Great speakers! Love the paper cones!
Model: 51KSC2704
Review Image by Brady Harston
Review Image by Brady Harston
This is a fantastic speaker. I have a 2025 Subaru Crosstrek Premium, and I've built and tuned my entire sound system from scratch. These replaced my Kicker CS 3.5 2 way coax, because I was tired of the phase issues of having a tweeter mounted on the pole of the midrange woofer 3.5. The plastic and PEI of the CS also just had a very fatiguing metallic ring. These new Kickers were a great compromise, because I didn't want a coaxial in the dash, and I also wanted something more capable than just a plain midrange. I run these at 30W RMS, and they run alongside my doors, which are Hertz Cento 165 L, which also have paper cones. I used my DSP to adjust the EQ on these to be more warm and less fatiguing, and wow, these are amazing. I boosted some of the highs to give a bit more shimmer before they have a hard roll off. I don't know if I would enjoy these if I didn't have a DSP, so that's something to keep in mind for potential buyers. I personally prefer a warm sound signature but if you like bright, I'm sure you'll love them. I have them band passed from 400Hz-20kHz, using LR24 slopes on both top and bottom. I love these speakers, the detail is incredible. It's no Hertz Mille or Morel Piccolos, but for a budget to intermediate, these are a killer deal. I couldn't be happier. About the compatibility, they aren't a perfect fit in my dash, I had to drill a new hole (which was a pain because of the tiny space between the dash and windshield) and screw it in using a small crescent wrench, because of the difficulty of using a bit by hand. Now that I've done it once, I can use a small phillips tip bit and do it by hand. So worth it. ... show more
Reviewed in the United States on May 25, 2026 Reviewed in the United States on May 25, 2026 by Brady Harston
    • Works for 2024 Subaru Crosstrek 🤌 Works for 2024 Subaru Crosstrek 🤌
Model: 51KSC3504
Review Image by Mac 🐺
Review Image by Mac 🐺
Review Image by Mac 🐺
Review Image by Mac 🐺
Review Image by Mac 🐺
Review Image by Mac 🐺
Used as a replacement/upgrade to the dash speakers in my wife's 2024 Subaru Crosstrek. It was an easy install providing you grab the right connectors and have a very small phillips head screwdriver. Ive posted some pics that hopefully help someone else out. 💯 percent improvement over OEM. These are 4 Ohms so you'll have no issues with the stock head unit. You'll probably need to go in and adjust your treble -2 to -4 and you'll have incredible vocal clarity and definition to bass notes. ... show more
Reviewed in the United States on June 24, 2026 Reviewed in the United States on June 24, 2026 by Mac 🐺
    • This rock and pound! A trusty solution well made This rock and pound! A trusty solution well made
Model: 51KSC2704
Review Image by Abe of all Trades Master of fun
Review Image by Abe of all Trades Master of fun
Review Image by Abe of all Trades Master of fun
Review Image by Abe of all Trades Master of fun
Review Image by Abe of all Trades Master of fun
Review Image by Abe of all Trades Master of fun
Review Image by Abe of all Trades Master of fun
Review Image by Abe of all Trades Master of fun
I would give these particular KS kicker speakers 5 stars but it arrived with 2 100 microfarad capacitors that are not clear for the user to connect to the speaker and or if you should use them considering what they actually do. In my case I didn’t use them because of the amp used is rated for 4ohm and a crossover that is able to control its received frequency range. If you wanted to wire them in parallel to a single channel, then you would need to use these capacitors inline on the positive lead to each speaker thus making it operate at a 2ohm load. The mounting is perfect for many vehicles. Comes with 2 GM/Mopar brackets 2 Chrysler/Jeep brackets 2 Toyota/Subaru brackets Two 11" Lengths of speaker wire (tinned wire on one end and quick slides on the other), very important for the long run and if you live where there is any weather. Two 100 microfarad capacitors not necessary for me to use. 4 Red plastic wire caps- good quality but lacking my favorite a conductive cream called Ox-guard, when using be sure to not short out two terminals as it increases conductivity but works well in this case of crimping wires. I use it almost daily. Four 1-1/8" Screws, threw in the pile of unused screws. Quick-Start guide (English/ Spanish/ German/ French) didn’t fully help.. hope this helps and you try these speakers. I have all kinds of different speakers and so many vehicles that I’ve been building for the last 30+ years and I gotta say kicker is a brand I always come back to. For this particular client of mine they have blown the competitors away, I literally just finished one of the best soundings systems that didn’t break the bank using 11 KS speakers in a 2022 Chevy Equinox. Brackets were perfect i just reused the hardware from the vehicle. For mounting always consider considering sound deadening mat and or sound baffles and acoustic phone. It’s a cheap way to really improve the quality of your sound. ... show more
Reviewed in the United States on April 16, 2025 Reviewed in the United States on April 16, 2025 by Abe of all Trades Master of fun
    • Fits in Existing Tight Space (no modification needed) and Great Upgrade in Sound Quality
Model: 51KSC4604
Had a very small space to replace the existing low-end two way speakers. These fit perfectly as the tweeters don't protrude like most these days. Sound quality change was also profound and unexpected. Can't recommend more if you need exceptional 4 x 6 replacement car audio speakers.
Reviewed in the United States on June 22, 2026 by Bill Y.
    • Great bolt in replacement speakers
Model: 51KSC404
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
    • Good product. Reasonable price. Easy install
Model: 51KSC4604
Work great. Easy install. Reasonable price
Reviewed in the United States on June 1, 2026 by Mike

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