What do you guys think of this possible OEM amp replacement?

http://www.crutchfieldcanada.com/Son..._p/158xm4s.htm

This amp roughly measures 8 inches by 9 inches. Smallest and cleanest sounding 4 channel I came across. I have not looked at the OEM infinity amp to see how big it is but I must assume it should not be any smaller than 8x9? I like to find a good quality aftermarket amp replacement and can fit in the same location as the OEM amp.

 

I have an 03 Durango R/T and left a stereo shop, the guy there told me each speaker is amplified separately? I know both the front and the back separate tweeters. It sounds good. The guy told me without spending a fortune and replacing the head unit all thespeakers it would not be worth changing the speakers. He told me I could put a separate amp and sub just to boost the bass but then that would not be worth it

 

Dont no if anyone did the reserch or not didnt read all the post but infinity syestm is a 2 ohm and therfore you can not replace factory amp with other and infinity makes replacment 2 ohm speakers try crutchfield.com been down this road repared my stock ones they lasted about a month

 

I figured they were full of crap..........that is why I am enjoying my stock infinity system. Took a Grand Cherokee SRT8 with the BOSE system for ride...500 plus watts.......not impressed by the stereo considering there is a sub and several component speakers. Scared by the power of the engine......and the warranty.

 

got my stereo a cheap pioneer deh-x3600ui and speakers four of these DCX165.3 HERTZ brand and head unit replaced amazing difference love it next week I will have my y pipe and then the exhaust will be qiut again. Then I may put on a throaty7 muffler!

 

When I bought my 99 5.2 SLT with the infinity system two years ago, all of the speakers were shot. Since money was tight, I replaced all 4 with really crappy (I cant even remember the brand) 2way 4ohm speakers just to get some sound. About a month ago, I replaced my rears with Infinity Cappa 2ways 6.5 inch (they came with adapters to go right into the factory spacers, and fit like a glove) Still with the stock head unit, I was getting much better sound, and was very, very happy with them..

Wife bought me a new head unit for fathers day, JVC KD-950BT and they really came alive! now I want to change out the fronts to match the rears, my question is do I really need to have component speakers for the front if the stock tweeters are gone? Can I get away with another set of the Cappa 2ways?

Also, do the OEM tweeters have a seperate wire from the amp,IIRC, the tweeters had their own clip behind the door, but like i said its been a couple of years since I've had the front doors apart. If I dd get a set of components, how would that get hooked up with the crossover?..

Sorry if any of those questions sound stupid lol