I can tell you that the best 845 based SET i have ever heard is the New Audio Frontiers 845. Give Jeff at high water sound in NYC a call highwatersound.com absolutely stunning especially with the silver wound output transformers
845 SET recommendation
I would like to try an 845 SET power amp in the next couple of mths and was wondering what other besides Art Audio and deHavilland should i look into. Your recommendations are appreciated.