Edit: Ok I got the balanced out to work but only with the USB input from the ZX2 being used. I never saw where you have to use a Sony product with USB output to have balanced. This would mean that it will work only with a Sony product. I just tried it with the DX90, line out to the input and changed the switches, no sound.
Mine works from the A15 and from the PC usb and optical outputs. Have not checked it from any other devices yet.
Edited by qsk78 - 3/21/15 at 10:57pm