[Andrew Rudolph]

I haven't used the Infinity amplifiers cause to me they are new. I use a JBL amp and for the price its a great sounding amp. You didn't say what kind of speakers for mids and highs you were going to use, just the specs. But i have heard both infinity reference and infinity perfect 6.5 inch components and wow they sound awesome. As far as amplifiers go i have experience with JL amp also, they are superb but a bit pricey. If you want to add a subwoofer the JL subs are amazing as well, w7s are sicko But again pretty pricey. As far as mids and highs go i definitely think the best way to decide on what your going to pick is to go out and listen to as many stereos as you can. Remember though, the displays at the stores arent always the best judgment. Speakers that are aimed at your ears (usually the expensive ones) will sound far superior to the ones on the floor or way above your head, so lean down or stand up if this is the way you go for choosing your speakers. Try to get out to a sound advice or a local reputable car audio store (none of them cheapo 10000 watts for 5 bux places) and they often have a wider selection other than your local best buy.

As far as head units go i tell people to stay away from Sony, i know about 4 people who have had them and have had them break. The best companies i would look at is pioneer and alpine. I couldnt afford an alpine, but a friend of mine who won 3rd place at a national sound quality competition used an alpine head with infinity mids and highs. I have had a pioneer in my car for the last 3 years with no troubles as with my friend who has had his for 4. But most of my friends sony HU's end up having issues with the CD players not loading (great clicking noises) and issues with them just deciding to cut on and off randomly (a quick hit to the side usually fixes it)