Quadraspire SVT Rack Issue
I have a similar setup, Quadraspire SVT, HRS platform, and Rega Planar 10 table on a suspended wood floor. For me the combination of the HRS plus the bronze upgrade for the top Quadraspire shelf solved any problems. Having said that, my system is on the ground floor, so the flooring may be better braced. Another option you might consider is swapping the HRS for either a Townshend or Symposium platform, which are both spring-based systems more targeted at turntable isolation from floor-borne vibrations.
http://symposiumusa.com/segueiso.html
https://www.townshendaudio.com/hi-fi...tion-platform/
https://quadraspire.com/bronze-upgrade/
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Tony
D'Agostino Momentum S250 MxV & HD pre; Linn Klimax Organik DSM, SonicTransporter, EtherRegen; Acoustic Signature Typhoon Neo, Koetsu RSP, Boulder 1108; Sf Il Cremonese; Shunyata Everest, Altaira, Sigma & Alpha v2
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