My Phantom voyage

[ogs]

Looking at the surface of the driver this might be due to a vibrational instability that transfers to the voice coil when the driver is set in strong motion. The only way to see what is happening is using an adjustable stroboscope or laser interferometry to observe how the driver behaves under load. It is probably not a fixed deformation as the noise would then be present all the time. So it could be non-linear cone motion transferring to other parts of the driver. If you could see how it behaves you'd know which dent to work on..

By the way, you are now definitely the resident Master of Phantoms here at DC