Isolation. Do what you can to isolate each component from the other. In my case it was getting my speakers off the floor. I use Townsend speaker bars, but there are plenty of other options. Next turntable then amp. It was incredible.
Best Stereo Upgrade Value
A question for you audiophiles...
What "upgrade/change" has singularly given you the biggest (not incremental) improvement to your stereo system? Upgraded amp, pre-amp, tubes, room correction unit, subs, connectors, cables, speakers, streamer, stylus, speaker placement, acoustic panels, etc.?