card9inal:
These boxes would have the ability to transmit and receive audio as well as voltage.
Audio is transmitted over copper is voltage.
card9inal:
Would that be the way to do it? Or would it HAVE to be converted to digital first, then could be multiplexed, then converted back to analog on the other side?
Digital is also voltage. So whether you send an analog voltage or a digital voltage, it's still just voltage.