The first time I heard Snell A7 Illusion I was almost speechless. They were powered by two 2301's driven by a C-500T and music played on a Ayre CD player. The sound was the closest thing I have heard that compared with my tri-amped Concert Grands suplemented with Celestion super tweeters. They really impressed. They were in a smaller room so at a 10 ft listening distance the most power indicated on the 2301's about 50 watts with average levels being about 12 watts. The speakers easily out performed 1k and XRT 28's in a larger room. Its a shame when Macs group bought Snell they didn't continue their development of new models of Snell. The A-7 were great speakers right out of the Box. I wonder how they would sound with a MEN 220.
IS 150 + watts enough? The speakers are pretty inefficient. I hope the combo works well for you. The last A7 I heard were pushed with two 1201's and though we never pushed the level past 100 watts in a much larger room, the A7 still had that beautiful clean sound with out any trace of harshness, current Mac speakers have. Some people I know thought the A7 were a little dry. But placed in the correct positions in a room with the correct listening position the sound can not only be clear and clean, but with ample bass, too.