> Out of curiosity, what would you spray? To take out speakers? Probably (closed cell) spray foam. * https://www.lowes.com/pl/insulation-accessories/spray-foa

> Out of curiosity, what would you spray? To take out speakers? Probably (closed cell) spray foam. * https://www.lowes.com/pl/insulation-accessories/spray-foam-insulation/4294858110 https://www.lowes.com/pl/insulation-accessories/spray-foam-i...