zero cost magnetic isolation

You got any pics Pete? Shame they aren't man enough for heavyish TT (assuming the magnetic field doesn't caue issues) BTW the Clearaudio Magix Units state up to 5kg each and three will take 15kg and 4, 20kg and so on ... so probably safe to assume if one of yours will do 2.5, then 7.5 for three is likely

 

However, the more compressed the magnetic field is the less 'bounce' there is.

 

A bad thing presumably Never having played with them, I don't know if the Magix specs are 5kg before the are no longer effective or 5 kg before they actually touch. I would hope the first.

 

As the magnetic field is compressed the field becomes more 'stiff' effectively coupling the magnets more closely together. As the lower set of magnets vibrate the upper set will move more closely in harmony. Presumably, in this situation, the idea is to decouple the upper magnet from the lower so I postulate that a highly compressed field is a bad thing. I suspect the 5 kg mentioned by Magix is indeed in relation to their maximum effective load and they touch with considerably more weight applied.

 

Ok... built and tested the feet .....

they will carry about 3kg total ....in unrefined form.

do they work..... yes
the effect reduce incoming vibration by about 80% some mid hi freq stuff getting through...though the low end seem well isolated.

sitting my 99 cdp on top of these.....it was imediately clear using it either as a cdp or dac that there was a better defined bottom end and the sense of depth to any recording has improved...

I'm going to try and make the pistons touch the sides of the chambers in three places rather than all round ..also smooth the roughly drilled areas ..I told you it was a quick ad dirty effort.

 

How did you manage to quantify this reduction at 80%?

 

good stuff Pete, any idea where you would go next to carry more heft? 3kg isn't a lot.

 

Use bigger magnets or use stacked magnets.

 

Yes more feet or as suggested bigger magnets ...

I'm still working on this ..as it seems to have some mileage.