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How do iso. cones work and what are the benefits?

I know this is kind of a newbie question, but what exactly is the idea behind using brass isolation cones under a cdp? I went to try to explain the purchase to the wife, and then realized I didn't exactly know myself! They seem to be very popular, but I am unclear on exactly how they work or what the benefits are.
Is the idea to "drain" any internal vibration from the cdp?
Are they equally as effective under other components such as and amp or pre?
Also, I would appreciate any advice on their use, any tips, placement, etc. Thanks, Jb3
jb3

Showing 1 response by piezo

piezo
304 posts
 
Ozfly hit it on the head when he states that you need to eval the quality of the change. I tried some 4in x 6in air filled packing bags under my CDP once just for giggles since they were laying around. Tightened up the bass, improved clarity of mids and detail of voices and mid range instruments and completely removed the upper octave or so. would have been great if that hadn't happened.

Mechanical break in of points???
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