Material Selection

With the programme written and proven, the cabinet can only be as good as the material it is cut from. Every property the drawing asks for depends on a sheet that behaves the same way every time, so material selection is treated as an engineering decision, not a purchasing one.

Baltic Birch plywood is our standard material for good reason. It is manufactured from thin, uniformly graded birch veneers with minimal void content between layers. This matters because voids create inconsistency: inconsistent density, inconsistent acoustic behaviour, and inconsistent machining quality. A sheet of commodity plywood might look acceptable on the surface, but its core can vary dramatically from one area to another. Baltic Birch does not have that problem. The core is as reliable as the face, and that reliability is what makes it suitable for speaker cabinets where acoustic performance is not a suggestion but a specification.

Every sheet is inspected when it arrives at the workshop. We check for delamination, moisture content, surface defects, and dimensional accuracy. Sheets that do not meet our internal grading standard are rejected before they enter the production workflow. This is not a token quality check. It is a commercial decision: a defective sheet that makes it into a production run costs far more in wasted machining time, failed assemblies, and rework than the price of the sheet itself.

Once a batch has been graded and cleared, it is matched to the programme written for that cabinet. The material that was selected to the specification is loaded onto the machine bed, and the next stage begins.