I think Philippe makes an excellent point; unless you update your vintage amplification, you may not reap benefits from "upgrading" to the M80's.

I own the M60's and have heard M80's but not in the same room. My impression is that it is pretty difficult (or impossible) to distinguish between the two until you start to play them relatively loud.

On balance, I think the floorstanders just sound a bit "fuller" than the bookshelf models.

What subwoofer are you using or considering in conjunction with the M22's?

Since Larry hasn't chimed in yet, I will unabashedly encourage you to keep the M60's wink Perhaps experiment a bit with placement if you have not done so already.

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