drewy, Audyssey does not set the speakers to small or large, it looks for the -3dB point for each speaker, and reports that back to the bass management for each manufacturer. Denon is now using 40hz, as the determination of making a speaker large or small. Audyssey company recommended that to Denon, and they followed suit. Some other manufacturers like Marantz still use 80hz.
In either case, the folks at Audyssey recommend to change those speakers found as large by the receiver, to the small setting. Also, you should adjust the crossover up from 40hz to 60 or 80 on the Axiom m80's. This is all spelled out in the documentation help guide, or in the Audyssey thread over at AVS.
