I need advice. I just upgraded from an entry level HT system. My new system has a Onkyo 601 receiver and the speakers are Polk RTi70s (L/R front), CSi40 (center), RTi38 (L/R back), and Velodyne 12 subwoofer. When I am playing music with the volume up around 70 (a fairly normal listening volume) I hear a lot of white noise during silences during the play of a song. This seem to be true for various sources (my CD/DVD player as well as my Mac playing AAC files via a digital or analog input) -- so I don't think it's a source problem. There is much less white noise with a couple of my remastered CD's (for example, Meat Loaf's remastered "Bat Out of Hell" CD), but mostly it affects all of my music. I've wired with 12 gauge wire, so I don't think it's the wires. When I turn off the source but keep the receiver tuned to that source, the white noise can't be reproduced until the volume is up around 90 or so. What should I do. Is the receiver faulty? Should I try for a different receiver with more power? Is this something that is normal? Thanks in advance for any help with this.