I'm surprised at some comments about these Fritz speakers. I had these exact speakers in my home for about 7 months. They sounded amazing with Adcom 535L, Atoll IN200SE, MiniGan5 (class D), Quicksilver Mono 60 tube amp. They were played in larger and smaller rooms, along the long wall then the short, with subs or without. In every situation and space, if they were positioned correctly, they were warm, inviting, and clear. I can't imagine them sound bad with the amps from Atma-sphere, which I recently heard sound amazing with some Tektons.
Gotta think the room and/or viewer's standpoints had a lot to do with impressions I'm hearing here.