Jl 450/4 or Kicker SX900.4
 

Well here is the question i am going for straight sq and i wonder the opinion on these to amps i am running some Jl xr653cs its ias a 6.5 4"tweet system and i need to choose an amp to run them i have listened to each and am wonderin you opinion on the kicker amp especially with its 32 bit processor and digital bla bla bla or if you have another suggestion let me know as well i am looking at some focal v2 series 6.5" tweet over the xr650 or if you think there is a better speaker let me know i like the soft tweeter especially in the jl but the focal has a nicer mid base....? Oponions anyone "
Adam Bomb"

What are your goals for the amp? Is there a particular reason for looking at 4 channel amps for the front stage? If your interested in spending less money on an amp and getting similar results I'd recommend checking out the Phoenix Gold Xenon X100.4. Phoenix Gold Xenon X100.4 Amp: Multi-channel

If you want to keep things simple up front I'd recommend listening to both the Alpine type X, and the Pioneer TS-C720PRS. Both sets have been praised for quality and bang for the buck.
PREMIER TS-C720PRS (TSC720PRS) <img src="http://lib.store.yahoo.net/lib/millionbuy/new-icon-new4.gif" border="0"><br>Pioneer 6.75" 2-Way 200W Component Speaker System
ALPINE SPX-177R <img src="http://lib.store.yahoo.net/lib/millionbuy/new-icon-new4.gif" border="0"><br>Type X 6.5" 300W Component System

Humm
 

Well my goal is straight sq here, no evan i am a little leary about your advice seeing how you are recomending alpine type x for front stage....sure they are alpine top bla bla but really they are not even in the same class as jl and focal... the reason i am getting a 4 channel amp is because the cross overs a are bi-ampable (1 chanel to tweet 1 to woffer) money is not really an option but both amps are in the 400 dollar range for what I have found.. MY real question is whitch amp is better the jl or the kicker , i have no fancy for phenox gold but thanks for the suggestion, go take a listen to some jl and alpine will sound like sony explode... lol

In addition
 

I did look at the reviews for the phenox gold amp, there is one reveiw saying it sounds better than the jl 300/4 swap. BUt only 1 it does however look like a promising amp.. here are the speakers i have in the front and the rear
The front is a 3 way system
Front..
http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?ProductID=11422

Back
http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?ProductID=11421

Hmmm.... OK. Sounds like you've made up your mind about the JL speakers. I must have misunderstood the original question as to what suggestions you were looking for.

Back?????? What kind of vehicle is this for?

vehical
 

well i have 2 a 88 mustang and a 99 grand cherokee limited i think this one will be going in the mustang it is being turboed at the moment imagin a 2.3L with 400 horse lol

Consider the Zapco Reference Digital or C2K series of amps for this application, should prove to lay the smack down on the Kicker amps.

Most people omit rear speakers for SQ, but that is something for another thread. Sorry, I don't have any experience with the amps in question.