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 1 response by jrpnde

   My turntable is neither shelf wall mounted or resting on a bedrock type of base. My table is an older one with no built in springs or other dampening devices. My house is over 100 years old, second floor, and moves slightly with season changes. I use multiple subs. Never have experienced a degradation in sound with these conditions but wondered if better isolation from vibrations would produce any improvement and, if so, would I notice it?
   In one of my previous posts I asked what could be done to isolate the table from unwanted vibrations. Thanks to millercarbon for his input. He recommended springs under the table. So, I ordered some Nobsound springs (since they're not very expensive). Even though I don't have any romping kids stomping on the floor I did notice a slight improvement in sound. MC also recommended Townshend pods which do the job even better but given their expense I decided to, at least, try the Nobsound first.
   So many factors in vibration control. Good luck in your quest.