I heard it with a Parasound power amp, not sure which one, through Vandersteen Quattros in a store (not a ‘regular’ room). Sounded great, put me on a path to investigate adding a tube pre to my setup. The emotional involvement part that I’m missing in my system. I can’t help with comparisons though. My dealer put my in front of that system (instead of his AR, Luxman, Hegel, etc) when I told him I was thinking of adding a pre amp to boost the SQ for 2-channel.