Owens Corning 703 acoustic insulation, also called rigid fiberglass, is the #1 material used to build broadband acoustic panels and bass traps.  It is ideal for DIY acoustic panels.

Owens Corning 703 – 1” x 24″ x 48″ – (12 per pack) – $87.00

Owens Corning Fiberglas® 700 Series Insulations are made of inorganic glass fibers with a thermosetting resin binder and formed into flexible, semi-rigid or rigid rectangular boards of varying densities. Types 703, 704 and 705 are available with factory-applied FRK or ASJ facings. Both facings are vapor retarders and provide a neat, finished appearance in mechanical applications.