So in your estimation John and apparently others there is no advantage to M60's vis a vis M22's specifically with the EP350. However if the M60's were to stand alone you think the M60's would perform demonstratively better especially with it's inherent superior bass. My understanding is that the M60'd do very well without a sub except in the most demanding lower frequency levels.
I think you've got it right. I did a proper, switched, comparison of the M22+ EP350 vs the M60 at Axiom. They were almost identical in sound except the lower bass the EP350 delivered.
