One of the beta testers for the Model 950 (RAF) uses M&K speakers like yours, and he drives most of them with a Model 755 amp (you can see his comments on the 755 here ). The M&K 150's look to be a 4 ohm load, which would mean the 7100 would offer you about 165W/channel - which should do very comfortably indeed. I think any of Outlaw's amps would be worthwhile options to consider for your M&K's.