Thank you Brian, for a preamp, I have a Superphon Revelation II, for my cds, Oppo BDP-105, just like you, great unit, I like to play SACDs, and I have a Harman/Kardon CD291 cassette player, have lots of miscellaneous tapes that I recorded back in the 80's, they sound muffled, but I still love them, it's about the music, isn't? I had a Marantz 250 amp, I know iconic, but somehow not satisfied traded it for the Carver amp, like it better.