I suspect there's something wrong in the implementation of the difference circuit. You need to check that it's in conformity with the schemo.Zander said:>The diff amps are connected via a card slot and are floating above the main board on the sides. The dotted green and black lines was the original connection to the main board.abbey road d enfer said:Nothing wrong with the circuit. Where is it connected in the system? You mention diff amps; where are they? Can you draw a diagram of your system , including the type of connections (balanced/unbalanced)
>Please ask if something isn't clear.