I've been playing around with this on the master bus this morning. I always adjust the calibration to whatever...in this case -1. I'm not quite sure what to do with the input. It's all the way to the left -20 or so. I would think it would need to be turned up to just under -1 on the meter, but it sounds better left alone. I guess this is for a weak signal, but I wonder why my loud mix is at -20 on the input meter and output meter? I've owned this and the saturation plugin for a while, but I haven't used them much to be honest. They seem very, very good...I just haven't got around to them yet.