A: This setup is called a parallel effects loop, because we will be sending a copy of the original “dry” signal to the processor and mixing the “wet,” or processed signal, with the “dry” signal in the Main Mix. Connect an Aux Send to the Left or Mono Line Input on your processor.ow, turn up the Aux Send knob on the channel you want to process. If there is an Aux Send Master for that Aux turn it up to unity. Turn up the input level on your processor for a line level signal. Turn up the output on your processor to unity.