Let's do some calculations here:
The M80 has an in-room efficiency of 95dB/W @ 1 m.* If your listening position is 3 m (10') from the speakers, it will be like 90dB/W.** So, 10W of power will give you 100dB of sound pressure at the listening position per channel; 100W will do 110dB per channel...
Bottom line: Your ears will likely be injured well before the 2802 starts to show its power limits.
*Sound pressure level is proportional to: 10 to the power of [dB value / 10]. So, a 3dB increase is approximately doubling of the sound pressure; a change of 10dB is a 10-fold change.
**Although in anechoic conditions, the sound pressure from a point source would be inversely proportional to the square of the distance, in a typical living room with lots of reflections it is more like inversely proportional to the distance; of course, YMMV.
