Really disappointed, tried it with Jadis line stage pre amp, Various valve pre amps BAT,ARC, Quick silvers, even passive pre amps, speakers Wilson watt puppy 5.1, Tannoy TD 12, tried it with KT90, KT 120 valves, for name sake various high end interconnects various high end speaker cables it simply does not produce Music to relax and enjoy, bass line is fine but tonal quality is is rather poor , top end is limited it is insensitive gain is average despite my large room dissipates so much heath forces you to open windows even in North European climate, also extremely over priced , it was a silly move and financial lost to git rid of them

Absolutely agree with Tommy

This over kill price Poweramp, Cary 805AE More far away quality and built