My background: Rouge Car Audio Installer, I've installed 5 complete systems as well as many other headunits and speakers. Always for friends and I always get to play with their systems. I love my Kicker sub and ZX amp. Whether good practice or not, I specifically purchased the Kicker ZX650.4 amp because it matched visually with my ZX750.1 sub amp. But I had no reservations about going to another brand for my component sets, I want the best sound. I've been shopping and researching for about 6 months. I didn't really consider the Kicker speakers at their typical $550 asking price even online, but one day SonicElectronix had these on sale. I then used the "Make An Offer" button to get em for a good price per pair. I bought 2 pairs.
Headunit: Pioneer DEH-5100
Sub: Kicker 12" L7 DVC wired to 2 ohm
Amp (Sub): Kicker 10ZX750.1 - 750W @ 2 ohm
Amp (Speakers): Kicker 11ZX650.4 - 120W @ 4 ohm (160W @ 2 ohm)
All Kicker power wires, speaker wires, RCAs. (They make some of the best cables)
Tweeter: At slightly less than 2 in, mounting can take a little thinking, but it's worth it! These Teteron dome tweeters are by far the best I've ever heard. Teteron - A synthetic material that is specifically designed to be lightweight and extreamley stiff. This allows the tweeters to sound precise at every volume level with no distortion or "ringing". A metal dome tweeter inherently wants to resonate similar to a bell, causing an inaccurate reproduction of sound. Compared to the silk dome tweeters I've heard, the Kicker tweets are much more pronounced. The tweeters are passivley crossed over at 2.8kHz which is lower than most systems I've looked at, but allows the larger tweeter to play lower frequencies. I've noticed that this lower cross point helps with vocals the most. Most speaker crossovers are crossed about 4kHz, which forces vocals through both the tweeter and the woofer. Lyrics come out so clear that everyone I show off to instantly comments on how easily they can hear the singer. THE TWEETER IS WHAT SEPARATES THESE SPEKAERS FROM THE OTHER SETS.
Tweeter performance: 5/5
Crossovers: One word, HUGE! They are not going to install in a car door and under the dash may wasn't posssible for me. The crossovers look outstanding and I decided to mount on my back seat to show off when I open my trunk. No reason to hide these. They have nice options of tweeter levels but I found the lowest, +0, to be plenty. I am going to bi-amp these speakers very soon. Passive crossovers are the worst option for good sound, you can find a ton of reading about it online.
Woofers: They can take tons of power, I have the high passed at 50Hz and they can take a beating. From the gnarley bass kicks of electronic music, to a Sublime bassline, these can handle it all without any distortion. But that isn't to say these woofers are any better than a similarly priced/ power rated set. From all the speakers I've heard, these fall right into their price bracket, nothing mind blowing, but well worth it. DO NOT buy this set for the woofers, although great, the tweeters are the star of the show.
Overall: Great buy, no regrets and happy as can be! PLEASE BUY THESE SPEAKERS! Size of woofer and tweeter make install tricky for sure.
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