I had acoustic feedback with my Kuzma Stabi R Tt sitting on a HRS R1X platform (on an Usher Audio Rack on suspended wood floors). I called HRS and they suggested that I get low frequency replacement feet. Cost me around $500 for the feet and it did the job.
Turntable isolation platforms
Need some reco's on turntable isolation platforms. Currently I'm considering the isoacoustics delos. This is another step in the battle to reduce acoustic feedback (see previous posts of mine). I currently have TT on a Pangea audio rack with a rumble filter with iso feet but want to remove rumble filter and use XLR input and not RCA. All ideas are welcome for a solid platform. GO!