Why it matters
The cabinet should not become a second speaker.
Thin panels can flex. Loose joints can leak. Large empty spaces can reflect sound back through the cone or out of a port. Material choice helps, but construction quality and bracing usually matter more.
How it works
MDF is dense, flat, and easy to machine. It is common for speaker cabinets but dislikes moisture and weak screws near edges.
Plywood is stronger and lighter for its thickness. Good plywood works well, but cheap void-filled plywood can buzz or machine poorly.
Bracing ties panels together so they move less. Damping and stuffing absorb internal energy and can make the box behave larger in some sealed designs.
Common mistakes
Simple example
Related concepts
Related concepts
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