I have a Rega RP10 and was getting feedback from room resonance at high volumes. I got the Isoacoustics Delos 1.75in thick platform with 6 of their feet. It worked really well. I decided to try something different as I didn't like the cone style Rega feet and sold the Delos. I got the Isoacoustics Gaia feet and the threaded posts to mate with the receptacles on the Rega plinth. I then got some sorbothane pucks just a bit larger than the Gaias. This has proven to be very effective.
