Do high dollar mono blocks truly improve the Sound Quality over the mid tier amps

Some good advice here, some questionable. The truth is there is only one person who can answer your question and that person is you. If you bought your Classe amps from a local dealer, you should try to talk him into a home demo of the amps in which you are interested. If that is not an option, you would be buying with blindness and hope. As others have stated, you have a very nice system in a room full of glass and highly reflective surfaces. I don’t see any treatments (blinds, drapes etc.) on the large front windows and this could be a WAF issue, but covering those might be of more benefit that changing amps. Otherwise, try to do what we’re all unsuccessful at - enjoying what you already have.

@skinzy 

Your points are well taken but how can anyone tell you if a higher priced amp will "move the needle" if you are not specific about the replacement in question and the only specification that seems to matter is the cost? Yes, higher priced amps should produce better SQ, but this will not always be the case. And even if I had the history of personally comparing some pricier amps with your Classe's, my opinion should only be a guideline; it's only your opinion that matters. Best of luck.