I use what I've got. La Scala's with Audible Illusions Modulus 2D pre and Dynaco Stereo 70 (modded) power amp. Testing a Harman Kardon A500 integrated now on the Klipsch and it sounds fantastic. In my office I have a Dynaco SCA-35 running AR-2s (a poor match, good sound, rich bass, but no volume), and Celestion DL-8 Series 2 (very nice).