Drywall and Mortar Speaker Box | Proton 285 DIY build Part2

[@jaypaskin2601]

I've made a couple of bookshelf speaker boxes from plasterboard they are great looking forward to salvaging more to start my next boxes aiming to make a cube out of a single sheet to cut down on visible seams

[@EngineeringEssentials]

Wow, can you compare the cost benefits?