They aren't really all that complicated if you are using a plug and play system. I do an animation at my house.
I only ever had one request to do it at a house and it was very expensive to do with all the additional labor and materials to get everything run properly, they about fell out of their chairs....I run 30 zones at my house and it takes me the better part of a day to run the cords and get it set up, and that's if you know how you want it plugged in. The 1st year I did it, it took 2 days to run the cords and get it to do what I wanted.
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