Scott - I'm running a pair of M3's (mains for a 6.1)on a Denon AVR 1906. The amp was purchased just one month after the M3ti's were settled. Although this post doesn't actually answer your question specifically, I will say the slightly warm presentation of the Denon is an absolute perfect fit. From a sonic perspective, I sense this relaxes the metal drivers ever so slighly and delivers that signature Axiom sound and yet remain forward. I can this same result from an upgrade Denon amp and the M80's.
