Hello I am borrowing a Leviton 7008 small lightboard to use at a show at school. The board is MPX only, and I need to convert it to DMX. I know about the $100 add-on that you can buy to install in the lightboard, but I was told there is a much better way. I was told there could be an adapter in between an MPX and a DMX cable to convert the signal for like less than ten dollars. I can't find one - does anyone know if this is true and where I can get one?