KA51KSC404
KS 4" (100 mm) Coaxial Speakers
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 utilise internally dampened polypropylene cones and tough rubber surrounds for outstanding mid-range detail and pounding bass! All KS-Series woofers feature an ultra-slim mounting depth to easily fit in most factory speaker locations.
With less than a 2-inch mounting depth and zero tweeter protrusion, the KSC40 is a perfect fit in almost every vehicle on the road today. They work best with 15 to 75 watts of recommended power. See below for more details.
High power handling
Silk-dome tweeters for a smooth sound
Polypropylene woofer and tough rubber surrounds
Thin-mount design easily fits behind factory grilles
Grilles included
Specifications
Speaker Design: 2-Way
Woofer [in, mm]: 4, 100
Tweeter [in, mm]: ½, 13
Rated Impedance: 4ohm
Rec. Power [Watts RMS]: 15-75
Sensitivity [1W, 1m]: 88
Frequency Response [Hz]: 60-20k
Mounting Hole Diameter [in, mm]: 3-11/16, 94
Top Mount Depth [in, mm]: 1-13/16, 46
Bottom Mount Depth [in,mm]: 2-1/16, 51
Tweeter Protrusion [in,mm]: 1/8, 3
Grilles: No
Tweeter Magnet Material: Neodymium
Tweeter Dome Material: Silk
Woofer Cone Material: Polypropylene
Woofer Surround Material: Rubber
Completely redesigned for 2024 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.
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 mid-range and mid bass, while high-quality silk-dome tweeters deliver natural, detailed highs.
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Customer Reviews
Easy to install. For such a tiny speaker very surprised on the quality of sound. Even has good bass tone. Would recommend for the small spaces. Good quality speakers feeling them.
Good
Great sounding speakers. Good bass from 4 inch speaker. Bought second set for rear. Included splice connects made installation easy.
These replaced the crummy old paper speakers in the sound bar of my 1993 Jeep Wrangler YJ. Those had completely deteriorated, with warped paper cones, and foam rubber surrounds that had almost totally disintegrated. So compared to those, these Kickers are fantastic!But what I really like are the fact these are low RMS (15-75 watts), meaning the original Jeep AM/FM tape deck I have has no problem powering it since it produces 20W/channel. I could install an amp, but why bother when these sound so good?No, they don't come with grilles, despite what the product description says. That was no problem for me, since I wanted to reuse the original grilles in the sound bar to keep it looking stock. These Kicker speakers fit perfectly, their low profile size had no problem clearing the factory grilles and the hole spacing lined up perfectly. I didn't have to drill anything! I attached photos to show how discreet they look behind the factory grilles.They do come with speaker wires that has spade terminals already attached, as well as butted crimp connectors for hooking it into your existing wiring.These were a little expensive, but I didn't buy a 27 year old jeep because I thought restoring it was gonna be a cheap hobby. I'm very happy with these speakers overall and am excited to replace the dash speakers with some Kickers this weekend!
I'm testing these vs the infinity reference 4 Inch. The kickerers need less power but are 4 ohm when the infinity are 100 watt but are 3 ohm so it's should have been somewhat similar. The kickers have more bass and more warm sound but tge infinity are louder high and a little too bright. I'm using these are dash speakers so bass isn't really a need for me so I'm gling to keep the infinity for now and once I test them with more power I'll see.