Streamers: Audiocast - https://amzn.to/2EyyQhu Muzo - https://amzn.to/2Yq3EbG Nexum Tunebox - https://amzn.to/32iaC3r Bluetooth B06 - https://amzn.to/3lc8gf5 Amp: Dayton 12 channel - https://amzn.to/3j1psSC Ebay seatch for "12 channel amplifier", preferably digital (class d). Elan d1200 is what I use. Amp/Controller combo: https://www.monoprice.com/product?p_id=10761 Controllers: Old HTD lync, Russound, Phast, Savant If technically skilled, can find older composite matrix switches with serial interfaces, and code up your own app to communicate over that. Every wonder how to get a whole house audio system setup in your house. Think you need to spend thousands on Sonos amps? Find out how to get the same results on a budget.