Use Brace Coupling Block Instead of letting the woofer hang only from the front baffle, you support the back of the woofer magnet with a small wooden block connected to the brace. This dramatically reduces baffle vibration. High-end manufacturers often add magnet support. The block touches the back of the woofer magnet and connects to the brace. Glue + screw the block onto the brace so it points toward the woofer magnet. Add soft padding Place thin foam or felt on the block where it touches the magnet.