thanks guys ...things seem to be meshing together now abit more.
Even thought the AV says set to small, it is not small as in the speakers are in a physical sense.
Basically, it is setting your ability to run bass management, because it detected a sub.
So I can crossover still at 40 or 50 hrz with the M80's and let the sub do the down low.
Where as if I had M22 well maybe they will be better with a 60 - 80 crossover and are actually a small speaker.
But, if I have no sub ( music) and M80's then it would stay large and play all the frequencies.