OK, so I sent an email to Axiom yesterday addressing this matter and here is the response I got:

"So the easiest thing for us to do would be just to swap out your VP180 woofers and you can send those ones back with just the cost of the shipping, if you want to change your other speakers to the new drivers we would have to know the serial # on your M80's so we can figure out what you would need to upgrade them, and last of all, we are putting on the site in a couple of weeks a new program for upgrading your old speakers, so you will be able to sell your old speakers and use the money to buy new ones."

Hope this helps.

Bruno
M80s/VP180/QS8s/EP600/AVR-890
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"The problem is choice..."