I have large building that is really 3 old building tied together. Wiring from one building to another is difficult, not impossible, but very difficult.
The goal is to have the background music in all building playing the same thing (from one source). Currently there are speakers in each building and each "building's speakers" go to an old stereo tuner of some sort amplifying the signal.
We have a "Music on Hold" device that allows music and "ads" to be loaded onto a USB and this device has a simply RCA Out jack that feeds into one of the tuners.
We have standard 14ga SPEAKER WIRE running from the center-most tuner to the other 2 tuners. If looking at the attached PDF, we have speaker wire running from A to B, and from A to C.
If that wire can be used to connect them together that would be AWESOME. If I need to run a different kind of wire because of new equipment needed, so be it.
I have attached a rough diagram that hopefully will make clearer my situation.
My question is what device(s) can I get to make all these speakers play from one source? Either new amplifiers, or something that could go from an output of one amplifier to an input of another. AND.... of course I'm trying to do this as inexpensively as possible.
Thans for any help.AudioDiagram.pdf