Thanks for the suggestion. I modified the original post. They were purchased new.


Main System: MD600 & Sonos Connect -> 818v2 -> DSP5200SE+DSW SUB
Alternate Main System: Sonos Connect AMP -> Dynaudio Contour 1.3 SE speakers + Sonos SUB
Kitchen: Sonos Play:1
Bathroom: Sonos Play:1
Bedroom: Sonos Play:3