When S8's arrive will try them with Marantz 8500 Receiver I have.
After broken in, if I don't like that, may have to put in switch to share with my Bryston 4BSST that is powering my 19 yr. old Polk SRS-SDA 185 lb. monsters with 8 tweeters, 16 mids, and 2 15in. passive radiators. Also have Paradigm PW-2200
Right now, the Bryston powers those 26 Polk drivers and the Marantz powers my home theater speakers and I can play HT speakers or Polks or both. With everything playing at once, it's a total wall of sound 18 ft. accross.
The S8 will be used for 2 channel and full HT, where as the Polks are only used for 2 channel and not everyday as I'd like to get a lot more years off them as they have been used very little until the last 12 months.