I think I'll go with LP3X then. I don't think I have enough turntable-related knowledge yet to tinker with better stuff, and also LP140XP is like 200$ more and that's quite a leap for someone like me, who is just taking first steps in the vinyl record space.

And to answer your last question, these are the speakers that I have in my budget Dolby Atmos home theater setup: https://www.amazon.com/dp/B07L53CG4X

More than happy with them so far, even though they are not on par with what most of the people on this sub have.