I have an ARC Ref 10 and it loves my Octave MRE 220's, which feed ProAc K-6's. Immediacy and transparencey of very expensive SS and the realism and monster sound stage that only tubes can deliver. Have fun with your hunt. I've thoroughly enjoyed this kill from when I went on my hunt to upgrade my amps from the Ayre MXR's. The Octaves smoke the Ayre.