Well, I took Rosepup up on his offer and bought the ZEN amp. Wow, what a good sounding little amp. The synergy between that and the Super 3Rs is just great. And the bonous is that the 300B that I had on my desk top is now driving my Altec 1005B/288C horns on my A7 bottoms and I don't think I have heard a better sound amp ever drive those. So in one fell swoop, I got two great sounding systems. Thanks to John for the amps, I love them both. Cheers.