I have 2 scanners that have a 1/4" input and output. It clearly states that they are DMX. I would assume that it would have to be a tip ring sleeve (TRS)? Would a manufacture do that? They are KLS SE204's that were in my youth room and broken. I asked if I could take them home and fix them, so I am in the process of fixing an extremely old scanner that I don't have any documentation. Lol. Thanks for the help!