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Old 10th August 2020
Gear Nut

Others will chime in, hopefully, but my initial thought is that R30 over the existing ceiling is a fine idea for low mids and lows, but that I am not sure it's going to make a huge difference in the "intelligibility" mid/high mid range, since that'll be dictated more by the reflectivity of the surface, whick you're not changing. Fabric covered OC703/SNS panels in strategic places? usually has larger quantities of B stock acoustic fabric at deep discounts, maybe tailor made for this kind of situation.