There have been a few folks here that have had sucsess with using Pioneer receivers powering the M80s. I would give it a try if that is what you are wanting. While it is true the M80s are speced at a 4 ohm load they are a pretty easy 4 ohm not dipping below that and being above it in most of their range. Combine this with a sensitivity rating of 95db they are not a hard speaker to drive.
As far as the dual binding post goes they are there to satisfy those who expect them in a higher end speaker, that's all.
