Thanks for the reply, Paul. The Gryphon Encore is long gone. It left shortly after my post actually. I did hear the Gryphon Callisto 2100 once at the same audio shop as the Dynaudios. I compared it to the Manley Stingray, which came in about 40% of the cost of the Gryphons. I much preferred the Manley. I might have purchased it even except that I heard some kind of tube crackle with adjustments in the volume control, so I held off. I've heard more recently that the Callisto 2200 is much better and of a different sound than the 2100.
Anyway, I decided finally to purchase the ASR Emitter II Exclusive on layaway used. I was able to get it in my voltage, and after other amps I was considering were sold, I decided to go in this direction. After a few more months when I take delivery and have a chance to hear the Emitter with the Alto Utopias, I will post my comments. I look forward to getting and hearing this amplifier.