iPod Sound Quality on Home Theaters???

[DBlackGT]

I just upgraded my whole HT. I got a Onkyo 805 and Klipsch Icon WF-35 towers and the matching Icon WC-24 Center. I upgraded from Polk Audio RTi A1 Bookshelves and the Polk Audio CSi A4 Center and from a Yamaha RX-V2500 Receiver.

On my ipod most of my songs that I purchase from itunes are encoded at 128kbps (some are 256kbps) and the songs I import from my cd's I rip at 320kbps. But now after I upgraded all my gear it seems as if the songs I bought from itunes and even some of the cd's i've ripped sounds horrible. Theres static and cracks in voices and so on. Not on every song but a lot.

So my question is once you get to a certain level/quality of speakers (not saying mine are top of the line but one of my klipsch towers cost almost twice as much as my whole polk setup so its definitely a step up) is encoding or ripping at 128kbps just out of the question? Or is it something setup wrong/have the wrong DSP on?

Or

Should I just actually buy the CD with the songs that I want on it? Or is there a place that has high quality music downloads? Any help or suggestions would be greatly appreciated. Thanks Derek