My first sta was the old Acoustat3, medallian mod, then I went to Quad 63,Martin Logan Sequel,2 pairs of Martin Logan CLS11z, and also a pair of stacked Quad 57's(ala Peter Walker design one atop the other).
Although there is a stat sound, none of these sounded the same.
I thought the stacked 57's were quite special, and I should have invested the dollars to have both pairs matched and brought up to speed, but even as they were, they drew you into the music.
I used an AtmaSphere MP3 pre and AtmaSphere S30 amp.
I listened to a single pair in Montreal driven by Audio Aero tube gear and they were also very special, and put a lot of more elaborate and expensive systems to shame.
Everyone should own a functioning pair of Quads at least once.