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I am just a Woodworker and would like to share this with all the Audio World This was written for me by one of the guys who belongs to Audio Circle.Com. There is quite a lot of fluff in the audio equipment arena, because audiophiles pay top dollar for silly things. When it comes to dampening and isolation there are a few schools of thought surrounding how to isolate your equipment from floor borne vibrations and shocks as well as drain the electrical vibration inherent to the component itself. One school of thought believes in coupling the component to the floor through the hardest, densest material possible, such as granite. I think there are a number of inherent flaws to this, first and foremost since the component is coupled it allows vibrations to travel in both directions, allowing vibrations to enter into the component. This is often heard in resolving systems where there is a bit of a high frequency emphasis. The problems are further exasterbated by the fact that these materials usually exhibit a high frequency natural resonance and thus cause 'ringing'. Polycrystal is probably the best material in this camp in terms of its dampening properties, however nature provided the best dampening material of all, wood. How can a tall maple tree stay erect during a severe wind storm? It is because the tree absorbs a lot of the energy and dampens it. The school of thought that I adhere to and think is most rationale and based on facts rather than psuedo-science, and proves itself in real world listening tests is base on wood being a natural absorber of vibrations. A physically massive shelf system that uses thick platforms of rigid wood as it shelves provide both great isolation and immunity from transferring vibration through the system. It also allows the pent up electrical vibrations (and honestly there is quite a bit, that can easily be demonstrated but isn't safe to experiment with if you aren't privvy to what you are doing) to be drained from the component that manifests itself in clearer stereo imaging. This is theory in practice. Of course to harnest the potential dampening of the wood shelves, the electrical borne vibrations in the component need to be channeled from the component into the wood. The science behind this is a little over my head, even though I have graduate school education in mathematical simulation of waves and energy dissipation. The result is never the less simple; use brass cones (cone point into the wood) between the component and the platform and voila the best of both worlds. Recently many of my audio club members had a chance to rehear my system after I had inserted the maple platforms into my system and their comments about the improvements (not knowing what all I had done) in my system from previous were raves and praises. Man can still not match nature in many ways. |
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