There have been changes to the line since 2004, as far as I know, though.

I originally bought the M50s, mainly because of WAF and cost. I enjoyed them quite a lot. Then I got the M80s and compared them to the M50s. The 80s blew them away.

At this point, I'm sorry to say that I'd be looking at the M60s and the M80s. Of course, my point about things changing since 2004 may also apply to the 50s. I haven't heard any M50v2s.

I am the Doctor, and THIS... is my SPOON!