I've never heard your ARC, but have fairly recently had in two systems of my own a Vendetta ???, an Aragon 47K, a Welborne Labs Reveille, an AHT DM-P, and, last but not least, a Pentagon PS-3. I can't fairly compare the Pentagon with the AHT, since I built stepped attenuators into the AHT (literally built both into a new chassis), but compared to all the rest, the Pentagon wins hands down. There were two for sale on Audiogon the last time I looked. It's one to consider, IMHO.
