This may be a bit cross-grained (pardon the pun) but I have tried my PK 57's with Berning's ZH270, Bel Canto Ref 1's and an old pair of Naim 135's. The Naim immediately let me relax and listen to the music more than the others. The Berning was more sparkly. The Bel Canto's did not have as much control of bass notes as the Naims did but had more depth perspective. All were driven by a minimalist tube pre.
Curious to hear which you decide upon.
Curious to hear which you decide upon.