The Dyns need a lot of juice to make them sing. I use a Plinius SA 250 MkIV (450 watts per channel-4 ohms) with my 3.3's. I am very pleased with the full dynamic range of sound, exceptional bass and it's realistic three-dimensional soundstage with an excellent balance of depth and width. I would also highly recommend Pass X350 (or higher). Tubes are another option and will definately add warmth. I'm not that familiar with many different tube amps, but the Atma-Sphere, Audio Research REF 300 or 600, and BAT have strong followings.
Best Amplifier for Dynaudio Contour 3.3s?
I have been building a system over the last two years which currently consists of: Dynaudio Contour 3.3s, Proceed AVP, Electrocompaniet EMC-I (24/192), Aragon 8008x3, and Ensemble Cables. I would like to upgrade my amplifier because the Aragon is too edgy and harsh. I know I need a lot of power for these speakers. I am looking for something that will be warmer and will improve the soundstage. Any suggestions?