I am powering a pair of M80 v3 via a NAD C 375BEE, its rated at 200W.

Over the last 6-7 years I have blown 4 woofers, I didn't keep track but I guess I may have cycled through them all.

I can't imagine thats expected, I do know powering them with a weak amp may burn them however I would have guess 200W would be enough and 375BEE is a respected amp in the community. Anyone else faced such a problem?