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

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RE: They don't rust if you need acorn nuts;-) nt

Posted by Duster (M) on August 4, 2016 at 16:12:25

In Reply to: RE: They don't rust if you need acorn nuts;-) nt posted by Jeff Starr on August 4, 2016 at 14:46:24:

Hi Jeff,

I noticed you have Black Diamond Racing Cones placed under your preamplifier. I use modified BDR Cones under my preamplifier and power amplifier. It's a very easy task to DIY assemble:

The diameter of the particular 40mm x 10mm Carbon Fiber Disc I mentioned fits perfectly over the base of a BDR Cone. I glued a 40mm x 10mm Carbon Fiber Disc to the base of each BDR Cone with Liquid Nails silicone adhesive, then affixed a 40mm Herbie's Audio Lab Thin grungebuster Dot with adhesive backing to the bottom of each Carbon Fiber Disc. This created a 3-layer footer, with all layers serving a particular purpose in how the design functions as a vibration/resonance control device:

For the most part, Steve Herbilin of Herbie's Audo Lab's designs inspired the design. Steve's Iso-Cup design uses a coupling device positioned directly under the bottom of a metal component enclosure, then the coupler is affixed to a compliant but controlled bottom layer base that functions as an effective decoupler when placed upon a rack shelf surface or platform surface.

So, when the BDR Cone modified with Carbon Fiber Disc footer is positioned on a rack or above/under a platform surface, the cone side of the footer is placed "upside down", meaning the tip of the cone makes direct contact with the most *rigid* surface area available to couple with (the metal enclosure) rather than pointing down into a more soft/compliant material like a wooden rack shelf or platform. Then, the carbon fiber disc is adhered directly onto the flat side of the BDR Cone, which acts as an effective resonance dissipator and vibration wave blocker. Finally, a 40mm Herbies Audio Lab Thin grungebuster Dot, black version, with adhesive backing, is affixed to the bottom of the 40mm Carbon Fiber Disc to function as a good sounding and effective anti-skid pad for good horizontal sheering stability, and minimal decoupling between the footer and the surface it's placed upon.

I find it to be the best sounding footer for use under both my preamplifier and power amplifier.

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