Up for sale if my Mutron delay. It's a rack unit and works as it should. Take at look at the pics. It does show signs of use but considering it's age it's doing rather well. If you haven't heard one of these they do have a unique sound. I describe as trapped in a garbage can. I couldn't find a sample on You tube and really not that savvy to put up my own You Tube vid. Interested? Drop me a line.