Stress the entire cone of bass and midrange drivers, stabilizing the mechanical junction between the spider, cone, and moving coil.
: Always start with the amplifier volume at zero. Gradually increase it while monitoring the woofer cones. If you hear "bottoming out" (the voice coil hitting the back of the gap), reduce the volume immediately. Phase Inversion Technique Jean-marie Reynaud Magic Cd Flac 2021
Stress the entire cone of bass and midrange drivers to stabilize the junction between the spider, cone, and moving coil. Stress the entire cone of bass and midrange
To minimize the annoying noise during the hours-long process, place speakers face-to-face (roughly 30cm apart) and wire one speaker out of phase Jean-marie Reynaud Magic Cd Flac 2021