Hello audio experts. I need some opinions because I am certainly no expert. I just purchased a pioneer SC-LX704. It is equipped with 3 zones. I would like to a have a zone in a different room that will power a 2.1 system. I still have my 7 year old pioneer SC-71 and was thinking of running a RCA chord from the zone 2 out of my new receiver to my old receiver. I would want to be able to play music via “music server” to main zone and zone 2 together or one at a time. \nWould this be a good way to go or purchase a Sonos amp and create my own zone where music could play together through airplay 2?