I don't think 20 watts is going to be enough. The one real good thing about the MMG's is, when you get sick of them.( you will get sick of them) You can easily get your money back out of them.
I ran 120 watts into mine. I had 2 pair at one time. I think that was just enough.
I ran 120 watts into mine. I had 2 pair at one time. I think that was just enough.