If you're close to NJ than you can make a trip to Audio Odissey and audition them with Triangle.
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the unison research amps are quite popular in europe and the uk countries. if you are looking at hybrid amps, consider the pathos amps, especially the twin towers (or TT as it is renamed now for obvious reasons ). i'm told that the pathos works well with avangarde, vienna acoustics speakers although i'm sure there are other synergistic options out there. you would need fairly sensitive speakers for both the pathos and the unison research.
good luck !