This device will allow you to mix your original signal (dry) with delays, reverbs, (wet) anything you stick in the loop of the Wet Box. Wet/Dry Parallel Mixer In the setup below you can see the guitar signal enters into the input/a. The Delay pedal is put in the loop of the WetBox (WB send to delay input, delay output to WB return) You can now set the wet/dry ratio which is the blend of the input signal and the effect return by using either the Balance control knob OR the WetBox EXP pedal. This means that your original signal is unaffected and you can just blend in as much of the delay as you want. The gain control is a master volume for the WetBox output. Parallel Amplifier Effects Loop Mixer You can even use the WetBox as a parallel mixer for your amps effects loop. The phase switch on the WetBox means no matter what effect you put into your amp s effects loop you can always get it in phase with your original tone.