SS Integrated Amplifier that would sound good with the PSB Synchrony One B

  Sorry about my poor English.
  A couple of weeks ago I bought a brand new (old stock) PSB Synchrony One B speakers.
 Great sound with the Luxman L-590AX that I borrowed from my friend but of course I cannot afford one.
 So far I am using NAD C326 Int.Amp. Standard NAD house sound. Nice dynamics but confused highs.
 Any suggestions on the SS Integrated amplifier. The maximum budget is $4000.00. Listening room is 17'x12'x8'.    Very moderate listening levels. Such a posting already exists (by Djengan). The Rega Elicit-R would be one of the options but i heard from the people who are familiar with the Rega electronics, that particular model lately have issues with the humming transformers. Thank you in advance on your opinions.