Thompsonuxb
What speakers do you currently have?
In my experience now with swapping out speakers and amps I feel that the speakers and room acoustics will make the initial difference in sound and then the amp will make little differences on top of that.
I am very happy with my R500s now and feel the Rotel is doing a great job of controlling them. I know that if I were to try maybe the ra-1570 or high end Naim amp they would probably sound even better to me. So I'm going to not listen to or audition any other amps for a good few years now and just enjoy the sound I have.
But the difference between my Dynaudio X12 and Kef R500 on the end of the Rotel is night and day to me now. The R500 are a massive step up in terms of a much fuller and more detailed sound.