I remember being very impressed with Rowland Concentra I driving Thiel CS-6's. This was many years ago.
I owned the Plinius 8200 II while I also owned Thiel 1.6's and it was quite good, but always had a hint of grain and I ultimately went back to tubes for that speaker. I never heard the Rowland on the Thiel 1.6's.
A friend of mine is driving Thiel 2.4's with Rowland monoblocks and a First Sound tube preamp, and it sounds great IMO.
Art
I owned the Plinius 8200 II while I also owned Thiel 1.6's and it was quite good, but always had a hint of grain and I ultimately went back to tubes for that speaker. I never heard the Rowland on the Thiel 1.6's.
A friend of mine is driving Thiel 2.4's with Rowland monoblocks and a First Sound tube preamp, and it sounds great IMO.
Art