Hello I have had a pair of MIssion M73's for over a year, and in April purchased a Sony DB780 Receiver to go with them. The problem is, the speakers sound so clear that they almost sound harsh (they can also sound cold on certain music - I have noticed this because I recently bought some Mission M71 and they sounds fantastic - really warm and smooth) and on high volumes, the treble seems to have a lisp. This has only happened since I got the receiver. Is there any way to stop this/tone it down or make the sound warmer by some tweaks on the receiver? I use my Samsung DVD511 to play CD's (Truly awful for CD's - will be replacing soon!) and this is connect to the receiver by Optical Cable. Could the DVD player be the problem? Thanks John.