Hi, I currently using M60's v2 as my main music system. I was thinking if upgrading to the M100 v4 would it make a big difference? Please let me know what you think, thanks.

If you were going from M60v2 to M60v4, I would say that the difference would be subtle.

Going to M100v4 would be quite a jump in performance especially if you aren't using a sub...

TAM

I had M60's and traded them for 100's. The difference is substantial across the entire spectrum, but esp. in the lower end. They have breathed new life into some pretty old and crappy recordings. Newer recordings will lay you out flat. The guilt over buying them was quickly eradicated by oodles of satisfaction. They have become my favorite inanimate objects, next to Hello Kitty.

Bob hasn't posted pics yet, but he opted for a limited special edition Hello Kitty veneer on his M100 speakers.

Sean, you're confusing me with Chris's pink M3's. The Hello Kitty is not on the veneer, it's on the grills, where I can see them as I kitten, errr, listen.