I’m sure this will get lots of people wondering. I have been chasing down unwanted sounds - took out the Conrad Johnson ET3+ and disconnected the USB. So all I have is the DAC with monoblocks. Usually works but with some noise. This time, with the USB disconnected, I start hearing a radio channel. So nothing connected and yet get radio? Do not understand!!! Help!!!
But then I switched the DAC off, so all I have is the monoblocks feeding the Quad speakers… and the radio channel kept playing.!!!