I own these, Currently using a Krell KAV-500. They sound great, I don't see myself ever upgrading these speakers unless I move into a large house and go with floor standing speakers. I had the LSI9 hooked up to a Mark Levinson 23.5 and I found myself stuck in the sweet spot for days. Go with Krell, Pass, or Levinson and you will be glad you didn't buy a more expensive speaker.
