I have had a few SS pre amps and tube pre amps over the last 5 years such as Sima P5, Krell KRC-3, Pass Alpha P, Bryston SP1, Sonic Frontiers Line 2 & 3 and by far the best match and compliment to my Krell FPB amp(s) has been the Ayre K1. They compliment each other and the result is excellent. If I were you I would look at an Ayre Pre.