Owned: Technics SU-R1 streaming dac and my TAD sacd player, which can also be used as a standalone dac.
Heard: Aavik SD-880 streaming dac ....I am convinced that this is the best sounding dac on earth! If there is no trickledown unit in a couple of years, it would suck because this unit costs 70k at the moment (could cause divorce).