I had the same problem. Detailed and somewhat bright gear (Thiel, Adcom, Rotel) made everything sound thin and unmusical. I got a Rega Planet 2000 and everything came back to life. It seems that the answer is all about system synergy. I think I read Mike VansEvers say that a system of class B/C components that match each other well will always sound better than straight class A equipment with no synergy.
As for artists, I noticed Pink Floyd recordings can sound better on some equipment and worse on other equipment but it always sounds good.
As for artists, I noticed Pink Floyd recordings can sound better on some equipment and worse on other equipment but it always sounds good.