Airplay 2 receiver?

I have a couple of old AppleTV 2nd Gen lying around and I’m wondering if Firecore will allow me to reliably use them solely as Airplay 2 receivers (not connected to a display) to connect to a couple of zones I have a stereo amp and speakers in my home? If so, any settings I need to consider to make this work smoothly?

Not possible. Only airplay 1 with no image