Not much beyond my statement and photo above. The speaker bracket in question is advertised as supporting up to 33 lbs each, and it wilted like a dead weed under the 16 lb. M22. Monoprice customer service was excellent in giving me a refund, but I would think most people would like to know how weak these things are before ordering (or drilling holes in their speakers like I did). The review I submitted was never posted on their site.