Damping to exitation of parasitic modes of

Speaking of vibration and damping has anyone tried damping the dust cap on the woofers of speakers. Well, first I should ask has anyone run a test tone through the speakers at around 200 Hz or so to hear just much much those bullies distort and ring?

I've found using differing materials in cascading layers "For different Freqs" I start at about 10k and work down. It more easily defines problem area's by isolating migratory vibration but there are still area's of regeneration. I think fields are interacting and may be performing as a type of wave generator. Juries still out on that one. Coincidental entrapment seems to work very well though. You simply have to make the law of averages work for you by trimming the variables with the cascading layers actively as well as passively damping plus transduction "several types". To the point where the deck is basically stacked in your favor.     Have you ever tryed introducing disruptive pulse voltages at very low freqs'?  This seems to help with sensing also below 6 htz.

"Sympathetic Vibration" just means that one vibrating object is driving another

driven or forced damped harmonic oscillator is the best search term to get the right differential equations...

I agree that you will likely need different materials for different freq. bands.

Um, ok. I do believe you are correct Sir. But that's not the use of the verb in the context in which it was meant. At least it fits my thoughts on the matter much better than -
 "Complimentary Vibration" which is as nonsensical to me as it is indeed logical. The misnomers abide me not well tonight.

Jeff, the entire Shun Mook "thing" is beyond me. I've never been one to cry "shenanigan's" to what another swears by because I've experienced too many as of yet, unresolved occurences myself. Yet if it was truly that much an epiphany, would not they at least be available with an money back guarantee?    Are we sure "Shun Mook" isn't Swahili for 'Purveyor of fine snake oils? Hmmm. shall I alert the "shenanigan's" armed response unit/ bobsled team?! And why aren't we all growing Mpingo tree's in our basements under immense high pressure sodium lighting as an erstwhile yet felonious endeavor?