The PLINIUS 8200 Mk II integrated amp - i also was at the NY Sterophile show. WONDERFUL sound, and yep - the room was always full of people just enjoying.
I asked Vince why he chose an integrated direct into the speaker...other rooms had big super-expensive, exotic preamps and separate amps demo'ing their speakers. He just said that the Plinius integrateds (and separate amps) went well with his products. He just liked the sound. Me too.