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Old 17th June 2009   #9
jwl
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Well said, Foxfyr.

I should have clarified that when I say to put as many bass traps into the room as you can, I mean a)for small rooms, and b)using bass traps that don't absorb flat into the highs.

For corner bass trapping, you are better off using limp mass reflective membrane bass traps, which give increase low frequency absorption (where most small rooms need the most help), and are semi-reflective at higher frequencies to avoid overdamping the room.

There are commercial traps like this (all of our bass traps, for instance), and you can DIY them using something like rigid fiberglass with FRK.

I generally only recommend full-bandwidth absorption at reflection points to start off with, use the above bass traps judiciously, and then spot-treat any remaining areas. Of course diffusion can also be used at various places if there is budget for it.
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