I did some searching and I couldn't find anything that answered my question.
I've been working with a small community theatre company for a while now, helping with lighting and electrics. This coming year we're looking to make some upgrades to our dimming system.
The space is a very small black box (30'x44' for the main room), seating around 60, and normally set up in a 3/4 thrust configuration.
Right now, we have a 24x2.4k Sensor system housed in a 12 space Sensor 1 install rack. It has an MPE for control, receiving DMX from an Insight 2. We want to increase our dimming capacity, as 24 is always a little short.
We were toying around with the idea of buying used dimmer doublers. We have 10 Source Four Jr. Zooms, 6 S4 PARs and a bunch of older fresnels and ellipsoidals. The intention would be to double all of the ETC fixtures and leave the others at 120v (because we have to). This would involve 8 doublers. Our dimmers are wired to pigtail boxes, which move around all the time (nearly every show). We rehang for every show.
This leads to the question: how does doubling work on an MPE control card? Would we be able to easily move doublers around, or would they be fixed to certain dimmers? I understand how doublers work, and have used them in another venue I occasionally work in, however, this space has CEM-controlled racks and a repertory plot.