Atmos Ceiling Speaker prep install question
Hello, i'm in the process of adding two Polk 900-LS ceiling speakers in my living room to give me a 7.1.2 setup (can't do 4 speakers with the angled ceiling) and will involve a little construction extending out the ceiling to get the left channel speaker installed and was wondering what all would you recommend to prep those speakers and the ceiling before installing them. Being that this is not a dedicated theater room although still wanting high quality audio, is adding something like a backer box necessary and would it make that much of a difference? Or would just mounting the speaker in the ceiling with the included mounting brackets going to be good enough. There is a floor above the living room as well. I can add pics of the living room to show what i'm talking about if need be. Working with a contractor here but before i have him install the speakers, i wanted to get some advice from you guys.
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