I spent my time last week working on a guitar amp isolation cabinet for my home studio. Very glad that I did! It was a fun project and it really works great. The design was based on Mike Ralph's DIY Iso Box. My attempt is a little less perfect looking, but the result is a perfectly functioning cabinet. The box is made of MDF (medium density fiberboard). The inside is lined with eggshell-style foam pads. I used weather stripping between the box and lid to give it more of an ai