Initially I've built 6 units for testing, but the plan is for 25-30 zones... if LMS/pCP will manage it! Each includes a Pi Zero 2, an ethernet board then the IQAudio AMP+ to which the speakers will connect. There's USB sound cards for passing through a local audio input (e.g. TV input, low/zero latency). It'll be some time before I can't test properly as the house this is for is currently a building site, but I'll report back down the line if it all works!
submitted by /u/TimJethro
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Source: https://www.reddit.com/r/raspberry_pi/c ... ngs_of_my/