Doug Fleenor, the
DMX guru makes a converter box from DMX to Analog 0-10v. You can get one that has 24 analog outs or you can get the GPI interface with 2 analog outs. They work great, I use one to control the
house lights at my
theatre. The GPI board runs $220 plus the cost of connectors. Simple and effective. Check them out here:
www.dfd.com