$50 · Studio Acoustic Panels

I built 6 high-performance acoustic panels for my studio. I'm selling them because I no longer have the studio. They are filled with Rockwool Safe'n'Sound insulation and work wonderfully at deadening echoes. 4 @ 4ftx2ft (6" thick) $40 each (160 total) 2 @ 2ftx2ft (3.5" thick) $20 each (40 total) Or $100 for all of them (save $100) I mounted them to the wall and ceiling using steel pipe fittings, but there are many other ways you could achieve this.