Which is the best preamp for the BEL 1001 MKVs?

This response may be a bit late, but here goes. I have a pair of BEL 1001 MkV's and have tried several preamps until a ran across a local sale on a used Aesthetix Calypso preamp. The rest of my system is: Ayre C5x-e cd player, MacIntosh MR-67 (modded) tuner, Dali Euphonia MS-5, and all BEL RCA interconnects and speaker cable. This system is very satisfying, and the Calypso preamp has taken the sound to a whole new level.

Late to the game, but the Hovland hp100 and Art Audio Gill Alana have both been in my system (driving Meadowlark Blue Heron II's) and the Mk V married the Hovland superbly. I am looking for another Mk V to try a mono setup.

This is an update to my post on 10-29-09. I replaced my Aesthetix Calypso preamp with a VTL 7.5, everything else has remained the same. Needless to say, this may be as good as it gets and I have no plans on changing either the pre or the amps anytime soon. Peace.

Do you still have your amps? If so, would you be interested in selling them?