“I also chose a couple of inexpensive off-the-shelf products for the new room. In the front corners I installed two Auralex SonoLite bass traps (24”W x 24”H x 3”D), which have a noise-reduction coefficient (NCR) rating of 1.15. I know I’ll likely need larger bass traps for lower frequencies, but this pair of SonoLites would give me a start — and anyway, from there I’d want measurements to guide my choices of any additional bass treatments. For the shallow sidewalls, I bought four RoomSonic wall panels, each 48”H x 24”W x 1”D, faced with fabric and comprised of mineral wool. This type of product is a classic choice for broadband absorption, and looks great to boot.”
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