It has been discussed many times that the M60 and M80 are very similar sounding speakers to the Studio 100. In fact, when someone cannot do an audition of Axiom speakers, it is often recommended to them to try out the Studio series.

You have been auditioning the 5 driver Studio 100 against the 3 driver M22 bookshelf? That does not quite seem fair.

Price not a factor? Price is always a factor. You could buy multiple M80's for the price of a Studio 100.