This is a basically brand new Empress Compressor that I opened once to compare to my Diamond Compressor in an AB test. I think this compressor gives you more options than the Diamond but in the end I wanted something with 3 knobs and a bit more simple for a pedal board. This compressor is really a studio quality compressor pedal made for your guitar and it sounds really good. It comes with the original box, all the paperwork, and is as mint as you can get. I would have listed it as brand new but since I’m not a dealer I felt bad listing it that way so it’s your gain. Price is non negotiable as this pedal is so good that I might keep it and use it for a second pedal board if I ever get around to building one.