Here's what I've got Fronts- Boston Z6's Backs- Infinity perfect 6.1 I plan on Bi-amping my Z6's and so far the best 4 channel amp I can find is the Alpine MRV-F545. My price range is about 750 or less and I would like an amp that would sound the best with Z6's. If I bi-amp my Z6's will I still be able to run lines to the infinitys?
bi-amping means using all your channels on 2 components. front of the amp for: tweeters(highs) rear: bass-to-mids your amp is then full. i think you can connect your infinitys to the rear section of the amp. but you wont have a rear/front for your woofers. what deck do you currently use.
What are the bostons rated? You probably wont need that big of an amp. The 345 would probably be more than enough.
if you want an amp with good warm tonality then look at JBL. Much warmer and enveloping than the alpines, and less expensive. YOU might enjoy a GTO75.4 on those Bostons... about 100w x4 rms at 4 ohms but still very affordable.