I have heard the Unison research monoblocks and use a Viva Solista 845 SET integrated as Tubes 108 pointed out, they are a great line. They are hard to find but a SOLISTA IS FOR SALE ON TTHE GON SITE NOW. I bought mine 2nd hand on this site and it will be prised from my cold lifeless fingers when I pass on to the great listening room in the sky
