Different systems playing same music simultaneously

I have four different systems located in different rooms.
Is there a way to make them play the same music like a multi-room system?
Could I send the signal from one source to all the systems at the same time?
Each system has its own amplifier and speakers.
Is bluetooth an option? Can I use a transmitter and several receivers?
Does anyone have this kind of setup?
00eb89d7 2c78 4fdf ad0b d96d4df77747migueca

Showing 1 response by erik_squires

I think you can do this with a number of streamers. I can do it with the now end of life Logitech Squeezebox, so I imagine it is a common feature.