I have noticed a problem with the 4CH configuration.
My amplifier in the Loop uses line level.
If I want to use the 4CH method it would mean that the signals that come out of the stomp in the Loop of the amplifier are the OUTPUT and RETURN signals.
I can set the output signal in the configuration as "line", but if I change the Return signal to "line" it also affects the Send, and the send should be "instrument".
Any idea how to solve the problem?
thanks