20years using huge power amps from Adcom, Rotel, NAD, Aragon, Arcam, Proceed. Than one day this UPA-5 open my a new door to my HT. From 2 Channels music to 5 channel surround sound. Full, detail just right sound for dirt cheap. Making my System look younger, tougher, bluer...Just get it to use for 2 channel music. will not regret.