The sub went together great. I had a 16"X16"X18" cabinet ready with appropriate cut-outs when the kit arrived, and was able to finish assembly in under an hour. The 3/4" MDF box has double-thickness (1.5") front and back, and 1/2" MDF reinforcing panels attached inside the top, ...
-Plywood, or a material of your choice. I used 1/2" Birch Plywood, then stained it to give it a nice look. About 4'x4' needed -3/4" Hardwood. I used a 18"x18" Aspen board from Home Depot. -Various 3D printed parts, roughly 1kg of plastic needed, depending on infill used. -1...