I bought a Pioneer 2011 for home cinema use, then when I heard what it did to my CDs, I sold my Marantz hifi amp and now use the Pioneer for music as well as movies/TV. It was a huge step up from what I heard before. Now a few months on, I'm starting to think that the Pioneer is perhaps a class above the rest of my audio equipment. I have a four year old Marantz CD67MkIISE CD player, and Acoustic Energy's 100 series speakers. I think it's more likely that the CD player is letting the side down, however there is very occasional distortion from my rear speakers, so I'm concerned that the Pioneer's output might be slightly too much for my rears. I tend to play music in Dolby Pro Logic II or Neo 6. Thanks in adcance for any advice.