Dan, something doesn't appear to be in order. As I've commented several times, my M22s(when used without a sub)have strong in-room response to below 60Hz. If you're not hearing something similar are you certain that all the mid-woofers are actually operating? Audyssey measurements resulted in the receiver setting my M22s to 60Hz, which I manually changed to 80Hz, so that the EP500 would carry more of the load.
As Randy pointed out, the receiver takes the Audyssey result for the frequency which was 3dB down and then sets the crossover to the nearest available setting above that. Although room reinforcement is an important factor in the bass extension, almost any M22 positioning should give a result way below 120Hz. Try different speaker positioning and run the calibration more times to see if you get a more reasonable result.
