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In Reply to: Anyone else built DIY cloud-9 type isolation device? posted by tds234 on August 5, 2005 at 08:11:04:
Superballs are superb isolators, but they isolate only. They do not absorb or damp vibrational energy. They stop it from passing through and send virtually all of it back from whence it came. Thus they are great for isolating TTs from footfalls on a floor. They are also great for isolating a speaker from a suspended wood floor. If you want to "drain away" vibrational energy, they are the wrong thing. In this case you need something that doesn't bouce, like sorbothane or a number of other materials that absorb or damp vibrations.Thus it is important to think clearly about your application. I found that superballs between my speakers and their stands were bad. They just bottled up all cabinet vibrations in the speakers. In my case it is much better to drain the cabinet vibrations to the Sound Anchor stands, which are very good at dissapating that energy. I have superballs between the stands and the suspended floor, which got rid of the tendency of the floor to act like a sounding board, with a tighter bass as a result. I've been playing around with a multi-layer sorbothane-superball "sandwich" that can give you the best of both worlds. Maybe someday I'll see if there is any interest in such a device and make them available, but right now I'm just having fun (albeit what many would consider a peculiar kind of fun- slicing up superballs, etc.).
Follow Ups:
cleanly. Sharp knife blade or saw blade thanks .Norm
The bouncy balls have a seam line. Once you start to separate them along that line they come apart pretty easily.
If you are doing it for the first time, you should be aware that this material can be a bit "crumbly." Cutting along the seam is ideal for maximizing the structual integrity of the pieces. Otherwise the cut can be a bit uneven and shed bits of material.
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