I would agree that Rotel is a lot better than people give them credit for. I own a pair of CS2.4 and I have found them pretty easy to drive... not what I would have thought...
But anyway I have tried a few amps now and I really like the new bread of class-D amps with Thiel. I would keep your Poineer and get a good integrated amp with a home theater pass through. The way you could upgrade your amp and preamp that the same time and still have the Poineer running the second system with the pass though.
A brand I have really liked is Wyred 4 sound. I would give the STI-500 a go, read the review and see what you think, a steal IMO at $1,999.
But anyway I have tried a few amps now and I really like the new bread of class-D amps with Thiel. I would keep your Poineer and get a good integrated amp with a home theater pass through. The way you could upgrade your amp and preamp that the same time and still have the Poineer running the second system with the pass though.
A brand I have really liked is Wyred 4 sound. I would give the STI-500 a go, read the review and see what you think, a steal IMO at $1,999.