sd sodoct sodoct 12 pack large acoustic panels, 47.2" x 23.6" x 0.4" sound proof panels for walls, high density sound absorbing panels for home studio & office, gray 47.2 x 23.6 x 0.4 inches 12 pack gray is up for auction in Musical Instruments. The current bid is $1.50, 99% below the $159.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.