Howdy all. I'm upgrading my system from bookshelf speakers. Have been using Mordaunt-Short MS812's, very very nice, but I wanted floorstanders. I'm evaluating the M60's, and thinking about also trying the M80's. I'm wondering if my Cambridge Audio Azur 640A integrated amp is strong enough to use with the M80s for an indefinite amount of time.

The 640A is rated at 65 wpc at 8 ohms and 100 wpc at 4 ohms. It seems to do very well with the M60s. I keep eyeing the M80's because I know that I won't want to spend this kind of money on speakers again for a long time, and I'm willing to stretch a bit further (I'm already past my budget) to get something I'll be happy with for more years. But I can't afford to also upgrade my amp at the same time. Those things get pricey fast!

So even though I know I wouldn't get the most out of M80's, would my amp be enough to run with them for a year or two? Or will I be wishing I had more power?