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Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

RE: Vibration Frequencies of Audio Gear?

IMO, constrained layer damping is best kept to damping a wall or another non-audio object that vibrates/resonates within a listening room, rather than severely damping a shelf or vibration control platform by a constrained layer damping method. Even most loudspeaker enclosures don't feature constrained layer damping, of which I think is a telling factor about the matter.

IME, the key to vibration control for an audio shelf is optimized rigidity of the entire rack structure including the supports rather an a compliant aspect of the structure that may do more to store the energy rather than dissipate or nominally drain it. A platform should also not be totally deadened by damping materials, since the more musical notion should be to shift the resonant frequency of the platform to another that simply sounds better to the human ear. This can be done via tonewoods as bartc mentioned, or by carefully designed composite material structures which tend to be propriety in nature. I don't know of any real indicator that points to aggressive vibration damping being ideal for better audio except for getting rid of vibrations/resonances that severely affect audio circuitry or a mechanical device such as a digital transport.

An analogy can be considered in regards to vibration control footers. An example is the very compliant vinyl Vibrapod footer. It was discovered by an industrial vinyl products manufacturer that a CD player located in their factory skipped when vibration generating machinery were operating. When one of their products was placed under the CD player, the skipping ended. This is what I call a brick wall solution, where the baby is thrown-out with the bathwater. I find nothing audiophile in nature as to how audio gear sounds when supported by the highly-compliant design of a Vibrapod footer. It sounds ill-defined and bloated from a sonic signature POV. However, if a CD player skips due to a severe vibration prone environment, it can certainly be addressed with the caveat that a sonic trade-off tends to result when key issues are taken to extremes.


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  • RE: Vibration Frequencies of Audio Gear? - Duster 16:17:58 04/14/17 (0)

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