I am looking to make some upgrades the outdoor music system I had made a few years back. Currently I have echo dots setup around my property which send their audio to each other and one dot then sends the audio via 3.5mm cable back to an Sony amp running in mono mode. The amp then goes to a volume switch controlling each zone. I bought some new speakers which are capable of 300 watts / channel which is well above the 100 watt output of the sony amp. I also do not think the Sony amp is doing a great job at sending out mono audio. While I am upgrading I was debating changing the 3.5mm audio to a wifi and or Bluetooth receiver and changing the sony receiver to a more powerful one and maybe a biamp nexia cs for the mono audio control. I would also need a speaker switch that can handle the extra wattage and was looking at few by OSD. Currently I am thinking along the lines of Echo dots to bluetooth/wifi receiver to Biamp nexia CS to Amp to OSD. Is there anyway to combine some of these things into one device without getting a Sonos system?