Diffuser inner material

Started by henryrobinett on 30 May 2018. 0 replies.

Originally posted at johnlsayers.com, topic 21613.

henryrobinett30 May 2018#1

I'm thinking of DIY bass corner diffusers. Tri-corner. I think Knauf Insulation Acoustical Smooth Board is less expensive than OC 703. Is there a preference?