FWIW, despite lost of dealers pushing them, I've never cared for the Rotels with Thiels. IMHO, there are much better choices for not too much more money. YMMV. I do think most speakers and the especially Thiels benefit from a quality amplifier more so than a preamp. The tube pre suggestion might be a good one, so long as it works well with your preferred amp.
Preamp for Thiel 1.6's
Would like recommendations on a preamp for Thiel 1.6's. Also have Rotel 1095 power amp. Currently using a Pioneer 94 Receiver as a preamp, which works OK, but I suspect is the weakest link in the system. Thanks for your ideas.