Amp vs. preamp

you may not need to upgrade at all.....sometimes even the finest gear won't give one satisfaction. indulge in other things for awhile then come back to it.rotel is great gear, and changing components is a game of inches. all that great gear you see for sale is either there because of disatisfaction or a need for money. take a few weeks or months and decide whats important to you.

Lots of good suggestions here. I would throw in that the preamp/amp is a combination and should be considered together. Now you have a Rotel pre/amp combo that is probably very equivalent and compatible. If you upgrade one and not the other, you may see little gain. Even if you can't buy both at once, an upgrade path is good to have. Also, to me, the difficulty in buying used gear is typically that lack of ability to audition with your own gear. If you are happy with your Revels, perhaps you could get a feel for the type of pre/amp that works well with them to yours ears: neutral, warm, SS, tubes, etc. Then you could post "Neutral SS amp recomendations for $X". Personally, I like to start with speakers and move upstream. Others make valid points - garbage in, garbage out - but to me, the speakers have the largest impact to the overall style of your sound.

Like Sgower I like to start at the speakers and move upwards as my speakers being maggies, amp choice is based on that. I am very familar with your amp + pre. as I had the 1066 pre. + 1075 amp. and it did a great job on 5.1 + movies but I listened to 2 ch. 98% of the time and in 2 ch. mode it just didn't quite cut it for me compared to a good 2 ch. setup. Cost was also a factor as I was on a bugdet and prefered to have my $$ in a Better 2 Ch. system. I sold my Rotel gear an moved back to a Better 2 Ch. setup and also got a older Pioneer Elite Receiver to do the 5.1 duty for Movies. To me it was a Matter of what was more important to Me 2 Ch.Music or 5.1 because I couldn't afford to do both at the level I wanted.
Like you I found the 1075 amp to be very good for the money and even used it in my 2 Ch. setup for awhile. But found fault with the 1066 Pre. for 2 Ch. Music. If you stay with your 5.1 setup I would look at a upgrade to the Pre. But I would also take your time and do some reseach on different Processors and ask more questions on different forms as well. If you can find a Processor that does a great job on 2 Ch. Music you will have have a great system for both. There are some great deals on some used gear out there but take your time to make the right choice, don't rush into it.