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The Vibration Black Hole (VBH) isolation feet provides mechanical vibration attenuation and isolation using a novel two-stage constrained viscous layer damping (CVLD) technique whereby a compliant and viscous polymeric medium is placed in between two hard surfaces, thereby providing a mechanical impedance mismatch that dissipates the energy from mechanical motions/vibrations through the mechanical shear and compression of the viscous layer. By use of dissimilar materials (nylon/stainless steel/viscous polymer/silicone rubber) in multiple stages, the VBH provides an exceptional level of extra mechanical dampening between two components needing mechanical isolation.
The VBH is ideal for mechanically isolating sensitive audio gear such as turntables, tube amplifiers, preamplifiers, and buzzing power supplies in large linear amplifiers. They are also very useful for isolating speakers from hard floors or tables to provide an improved soundstage and bass clarity. Each VBH consists of a precision machined stainless steel body and stainless steel inner core and a machined nylon piston-like conical contact pad. In between each of these components is the unique CVLD dampening compound. The device being isolated mounts on the included machined aluminum spike feet which mate to the nylon conical contact pads to provide the first stage of isolation. This stage is then in contact with the main external base through a second CVLD pad. The second stage of CVLD has an external backup silicone o-ring bumper to prevent bottoming out under heavy load and itself also acts as a CVLD under heavy loads.
Each VBH can support up to 30 lbs so a speaker with four VBH can weigh as much as 120 lbs. The VBH has been tested with an instrumented turntable plinth and special instrumented and calibrated test hammer and has shown a significant reduction in the transmitted mechanical shock and reduction in transmitted mechanical energy.
The VBH’s will help to provide your audio gear that extra level of mechanical noise isolation that you have been looking for.