I had the same problem when I moved to new home music room went from basement to 2end floor. I have a RP3 I removed the feet and replaced with Sorbothane Hemisphere Feet. from Amazon. Put springs under my sub’s and the problem was fixed.
Turntable suggestions for a shaky wooden floor
I'm using a Rega RP1 and had a significant rumble with even the softest volumes. I used a cutting board with Sorbothane hemispheric feet and now can listen to music at a pleasant listening level.
I'd like to step up to a nicer turntable but I've heard some are much better with rumble than others. I would like to spend $750-1500 for the TT and cartridge.
So far I'm thinking of getting a Technics SL-1200MK7. Any suggestions on something better or more stable?
Thanks for your time
Stan