Well my current setup is a Home Theater/2 channel all in one.I wanted to 'upgrade' my 2 channel listening primarily but thought it wouldn't hurt to upgrade both 2 channel and home theater. I was thinking the best (proper) way to do this was to purchase separate components respectively for each, although I know this isn't the most cost effective.2 channel improvements..... I mid range and higher side of my speakers is very nice, I feel. They are very clear, pronounced and make you feel like your listening to a live performance when I 're-listened" to my audio cd's after just purchasing. What I sometimes feel that they lack is the bottom end 'punch' or 'presence'. I am learning that I may be wrongly thinking that the amp was what was lacking, but instead may simply be my speaker. I know there a much higher performing and costly speakers out there than my entry level speakers. However I felt that I could get "more' out of mine. Room correction is an avenue I'm exploring to see if this would help as well. But I have also read comments that some amps have certain 'sounds'. Like McIntosh is said to sound 'warmer".
I'm still learning....thanks for your patience.