My house has a multi-zone audio system by a company from Texas called HTD. There’s a bridge device that allows for integration and they even publish an API. I think there are at least a few other Hubitat users that have one of their systems.
That’s one of their multi-zone amps someone wrote a Hubitat integration for. I use their Lync system, but I’ve had to resort to using Home Assistant to automate it, since no one’s released a Hubitat integration yet that I know of.
Unless @thebearmay is bored this weekend 
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