I am having the same problem with Kappa 6 Infinity's Tryed a few amps including Carver and Adcom now using a Mcintosh mc2200 sounds good but the best sounding (most dynamic) is a soundcraftsmen type H amplifier, The only problem is the amp has been undependable and is in for repair again. The soundcraftsmen has a lot of attack and is very warm, some other amps sound steril with my Kappas. I have been told that type H amps are often used for sound reinforcement clubs djs and the alike. Also Denon cd players have a warm sounding dac I have found. Hope this helps-Guycom