Honestly. Until you get the speakers in your own room should you even start to consider what the best amp might be? Not a living soul could tell you that. The M3 Sapphires are very efficient so really you need 50-60 watts, even less with tubes in the transformers are well made. I use a 400 watt, McIntosh, on mine set. The speakers are very open and unboxed like in every way. Fast as stats and very clean bass, no one note booming bass. Stand up bass sounds light and fast just like the real thing does, unlike a box speakers certain bass notes don't all of a sudden become loud or boomy. Every enjoyable, once you learn the speaker and take the time to set them upright, one of the easiest as far as balance left to right, like a box speakers pulling them out from the front wall, is a good thing, no different, 36" works fine, even several inch's less may be depending on your room. Toes in starts crossing you in front of them toe them back 1/2 inch at a time till you lock the image in and balance top to bottom.
