Hi ereed,
I liked the M60 a lot from the time I first auditioned the entire Axiom line in 2002 and did not suggest any changes to the M60.
I believe the M60's tonal balance has remained essentially unchanged, however, I once asked Ian last year if he'd made any changes to the M60 and he replied, "Oh, yeah," but didn't elaborate. I'll question him more closely and report back.
No audible changes have been made to the M22s. We did try a different configuration of the tweeter and midrange drivers last fall for a listening test, but the current array won the contest and stayed the same.
Regards,
