Hello there,
thread has opened for more than one year, so hopefully anyone will be interested in my reply.
I do own a pair of CLS I since 2008.
I drove the speakers with a Accuphase C 200L/P300L. The sound was nice but after a while I recognized, that the sound was somewhat flat, missing some depth in space, as compared with the Quad ESL 63 which I own too. These speakers have more differences than described here. But this is, what I want to point out here. I said to myself: Well, maybe its a question of power stability. The impedancy of the CLS goes down nearly 1 Ohm at 20.000 Hz, as shown in Elcorso`s Diagram (impedancy vs. frequency response). A power amp must be powerful enough to deliver stability on 1 Ohm
So I bought a freshly refurbished Krell KSA 150 Amp. This was a great step forward. So my advice to you is to drive the CLS with a very powerful amp at low impedances.
