I am wishing to reduce sidewall vibration without adding reinforcement within the cabinet. I'm curious about fiberglass and other products that can attach/bond permanently to the sides yielding the highest stiffness to weight ratio.
pass Seriously I would take out the woofer, which is the drive that usually causes most of the large back waves, and just stick some modified bitumen in the side and back panels. Self sticks, easy to cut to sizes. You will be crating a composite panel speaker. These bitumens I am referring to are often found in speakers and in electronics. Stuck to the inside.
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