Thanks, Frank!
BTW, it would be great to see a comparison test of the AVA amps with the same pair of speakers, so one can get an idea what the audible differences are among, say, Synergy 450, FetValve 400R and the new mono blocks.
I did audition all those amps separately at Axpona's, but never was able to compare them due to obvious reasons (too many people and requests).