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How to isolate turntable from footstep shake or vibration

Even while the Oracle turnable that I use has a built-in springs suspension by design there is a low or even sub-low frequency boom every time someone walks in a room. This becomes really bad with the subwoofer’s volume set high as the low frequency footsteps make straight to subwoofer where they are amplified shaking everything around. It seems the cartridge is picking up the footsteps very efficiently as even a lightest foot down becomes audioable. What can be done to attempt to isolate the turntable from the low frequency vibrations? Interesting, that the lower the volume of the subwoofer, the less the footstep shake is evident and with the subwoofer turned off it is a barely a problem at all. 
esputnix

Showing 2 responses by williewonka

williewonka
3,110 posts
 
@esputnix - I searched through this thread and could not find any mention of Magnetic Feet i.e. each footer uses two magnets positioned to repel each other - the table effectively "floats".

Of course there might be a reason for NOT using them i.e. "directly" on a turntable, so you might want to have them located on a secondary plinth between the the TT and the shelf

Maybe combining the magnetic feet with another isolation technique would provide the nest solution?

Personally, I have not used this type of foot, but considered them many years ago and thought it might be a good solution for very difficult isolation situations such as yours

For more info - read this thread
Magnetic levitation feet | Audiogon Discussion Forum

Regards - Steve
williewonka
3,110 posts
 
@mijostyn - I was thinking more along the lines of actual magnetic feet - not a DIY solution - like these...
Maglev HiFi isolation feet | Solid Air Audio

And the link to the other Agon discussion has more examples of commercially available magnetic feet

I think something like this would be too difficult to DIY 

Regards - Steve
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