Hi, Stranger:
Thanks for your suggestion.
For:
1) It does have this problem from the beginning.
3) I use Panny RP-91 as my dvd/cd player. I don't have other transport.
I think my speaker, receiver and player are not broken because I only have those problems as I described, most time the sound is great. That's driven me nuts.
My room is 12x16 with one side open to dinning room and two doors to the hallway. The floor is bare hardwood but I have a huge cafe table between my sofa and speaker. I can try put a rug to cover some area.
Do you have any experience with class A amp? Do they have warm highs than other amp?
Thanks again.

Daniel