Isolation Devices for Digital

I think that the cones used on equipment do drain vibrations, but it is not a one way street and can send vibrations back up as others have said. Thus, I find many people that use spikes, do so on top of another indepedent platform that is isolated ny a non-cone device.

The vibrations would drain down into the platform, while out side vibration cannot effect the platform as it stops at the non-cone device. Think of it as a cd player sitting spiked onto a wood platform that is supported by Vibrapods. Therefore both do as they are intended to, opposite functions.

Likecoiledsteel, sorry, you cannot make a general statement like that. I have no doubt sometimes these cones affect the sources in your system, perhaps in a pleasant way but to call it an isolator, drain, whatever is not right. My question to you would be this: Don't you think by precariously balancing a cdp on 3 points, you might decrease it's stability and cause it to move more? I would urge you all to look up some real isolators online and see what they look like and the materials they are made of.
Tvad there is a good reason why air suspensions make good isolators. They can have super low natural frequencies, less than 10 Hz.

I posted recently (2/19/08) over in audioasylum general forum a brief result of my home-made isolator (1-1/2 inch (38 mm) rubber cup with felt pad insert) including picture.

I also came across "the Complete Guide to High-End Audio" by Robert Harley of The Absolute Sound mentioning cones, spikes, isolators. He said turn tables and tube components need isolators in particular.

Rotarius, can you point to some of the "real isolators online" you reference? There are a ton of products with a wide range of effectiveness, but I suspect you're not talking about the products targeted at audiophiles. Just curious...