Stream music to two devices simultaneously using balena sound

Hi there! wanted to revive an old soundbar with Balena Sound (Click here for the Project), but I also have to connect a subwoofer. The equalization can be done in the Pi, but can I stream sound to two devices simultaneously?

Hi there! I think using multiroom would be perfect for this: https://github.com/balenalabs/balena-sound#multi-room