My theater design calls for clips and channel plus double drywall + green glue, but I want to ask the question "How much of an improvement are the clips and channel over just the DD + GG?"
Room is 17Wx27.5Lx9H
Clips and channel add significant cost and installation trouble to an already expensive project, but I am fighting with myself over doing it still just because "its the right way to go".
My room is in the basement, and sound isolation in the current room is not THAT big of a deal. Yes, you can hear it in the kitchen and den that is above it, but the new theater will already be walled off where the current room is a stairwell to the upstairs (reducing sound transmission) + the current ceiling is already a full separate joist system from the above floor (although the two are stupidly connected by 4 or 5 2x4's that I will be removing, reducing sound transmission again) + then I would be adding the DD + GG.
I can also watch a movie or music as the room is right NOW at reference level without anyone in the bedrooms of the house hearing it. Only the kitchen and den above can hear (although they can hear it pretty clearly...can tell what song is playing, etc).
So my reasons NOT to do it are cost, complexity, and the small amount of height and widgth I would lose.
A well respected member of the forum and friend of mine did a full clips, channel, and DD+GG install and said that it did not make the kind of difference in sound transmission that he had hoped for, and would not do the clips again if he were to do it over.
So... what say you? Go for it anyway because its the proper way to do it and, if done right, its a very significant improvement in sound isolation, or forget it because its something that, while an improvement, is not night and day over just DD+GG?
Thanks for helping me make the decision!