Low-Voltage I/O Voltages Used for Entertainment Control

We're looking at revamping and unifying some of our low-voltage control systems here at City Tech--the systems we use in the Gravesend Inn, for E-Stop, mechanical effects, sensors, and other similar interfaces.  Since we want to model best industry practice as much as possible, I put out a survey here and on the Show Control Mailing List.  The 24 respondents (from more than 10 countries and some major players in the industry) had one pretty overwhelming favorite: 24VDC.

Thanks to everyone who took the time to do the survey!​