Tumm.

Equalizer

Here's Tumm. for Mac.
– Wireless Speakers Match for Mac

Turn your home to a cinema or concert hall, with Tomm. you can pair your wireless speakers like "HomePod", "Google Home", "Bose" and many more together, it will handle the rest for you.

Tumm. will connect to your iTunes library, Apple Music, Spotify or any Streaming Services you use everyday, also with "Tumm Hub" you can use your HDMI audio or any AUX audio for broadcasting.

Currently i'm working on this concept, maybe someday it will turn into real Mac App.
Feel free to comment and let's talk about this idea, also hit that like button if you enjoyed it.

Peace!