perforated sound board

  1. Rennie

    Perforated wood boards with absorber behind, any use?

    I picked up some cheap MDF perforated (slits) board, some had a little bit of absorber behind them. Would they be useful to put up against the walls as room treatment? I would add more absorber behind them, mostly they would be going where no 1st reflection treatments are, or behind the desk and...
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