@vonhelmholtz Before you change a thing, please move your turntable out of the sound field. Your speakers are blasting your poor cartridge like Captain Kirk flying through an asteroid storm. That can't be helping and I'm surprised you're not getting feedback from the speakers into the analog playback.
To be candid, you've made many purchases of gear you haven't heard before. That's always going to be a risk. Most electronics need 100hours or more of break-in. Are you judging the phono stage before that? If you aren't near a number of dealers and can't demo stuff, you should seriously consider buying used gear with the mindset that it's just a longterm home demo, with little risk. Take your time and change only one piece at a time.
If you can demo gear, bring your music that you know well, is well recorded and make appointments to listen on slow days/times when you won't be rushed. The gear that "wows" for 30minutes, may not be what moves you over a longer listening session. Musicality & detail are yin & yang. Short demos make detail win and long term enjoyment suffer. Cheers,
Spencer