How to connect the wall-mounted audio wall-mounted speakers to the public broadcasting speakers in the background music sets of supermarkets, shops and restaurants?

Dongchuang constant-voltage speakers and wall-mounted audio are all connected in parallel, depending on how your original project is divided. If there are partitions, draw a main line for each partition and connect the speakers in that partition in parallel to this main line. If partition is not needed, pull a main line and connect all the speakers in parallel to this main line.