I'm running a 16-channel distributed dimming system for a show, with an NSI MC-7516 control board, and I'm having trouble with my dimmer box for channels 5-8. I'm doing a general wash with 13 of my 14 instruments and have it set to a sub. When I've been bringing it up or down, channels 5-8 have been coming in before any of the others; at 20 percenton the board, these four are much higher than anything else in the system, more like 40 or 50 percent. I thought it might have been a dimmer issue, since the pack I have at that point in the chain is a DP-DMX-20L and I've had some trouble with this one and it's twin. But when I switched it for a DP-DMX-4B, the issue persisted. I've worked with this equipment for two years at this point, and thanks to us being a low-budget professional that barely qualifies for it on a financial level, this has all been donated and I don't know the history of these pieces before I came in. Any possible solutions to this? I also do lack a terminator plug, but I can't imagine there's much noise since there's less than 150 feet of cable altogether.