I think my system at the time was better than fremers.I had infinity iris epsilon speakers .a vpi tnt make 4 turntable and a mark levinsion CD player.power amps where bat Vk500 two of them in biamp mode.the preamp was threshold feat nine and I went to the audible illusions and the sound was not as good as the fet nine.I than bought the bat vk40i flagship solid state preamp and that sounded very good Clearly better than the 3a.OT and FWIW- I owned the Audible Illusions Modulus 3a circa 1979 as it was the first tube preamp that made me think "OK, I get it. I understand what a tube preamp is trying to be!" Audio memory lane can be a bitch. But I really enjoyed that Modulus 3a with Telefunkens.