I am just thinking about these solutions. I always understood that a centre speaker gets quite a lot of energy. Isn't it therefore extremely important to have a very sturdy isolated support, maybe then put the speaker on spikes or on a anti vibration plateau (I have seen some DYI sandfilled ones, quite neat).

By the way, the OP's situation seems extremely suitable for a nice in-wall DSP.

My 2 p.

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