Joey, I think any of the amps you've been looking at will do a great job. I've got the Krell, which is powering my Aerius's via Audioquest Bedrock Bi-wires. I'll give you my impressions.
When I first listened via the Krell, I was using some thick guage Monster cable, not bi-wired. The Krell seemed very revealing and musical from the beginning, but seemed harsh when driven to very loud with demanding music. Also, the bass seemed a little lacking. To try to improve the sound, after listening to the system for a few weeks in this configuration, I hooked up the Audioquest speaker cable. The bass immediately sounded better and the music seemed more, well, musical. What I wasn't prepared for was that after about three more weeks, the sound became much more coherent, to my ears. The speakers seemed to sound much better! Loud volumes were no longer a problem and very enjoyable. The Krell can really control ML's as it delivers the power they need. A drawback is that it is very revealing of poor source material, but with good source material, watch out!
I've also heard (just a few days ago), a Rotel amp with a VTL 2.5 preamp and was very impressed. The tube preamp and the transistor amp seemed a great combination. Quite frankly, the best I've ever heard any ML's sound was with a tube amp for the electrostatic portion and a transistor amp for the woofer.
This is my first post to this forum and I hope I was helpful. -Steve
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