I have Thiels 1.6 with Stingray(50 watts tube). Plenty of power as the Thiels are 92 db. Used Rotel for a while and it was fine but I like the soundstage bettter with the Stingray. Most 'audiophiles' always claim that Thiels are bright and need lots of power. This is not true with the small 1.6. Very good speakers.
Craig
Craig