Help me upgrade my beginner system!

Thanks for all of the advice so far! It's clear the most prevalent suggestion is to upgrade the speakers. @curiousjim I LOVE the GoldenEar floorstanders but unfortunately the ones I want are out of my price range. I do like the BRXs a lot but I think I will audition speakers that my store carries. They deal with PSB, Sonner Audio (I fell in love with these at AXPONA), Audio Physic, Dali, Focal, and KEF - so if anyone has any recommendations of a model you think would pair well with the Peachtree, I'd appreciate that. Cost will probably be a factor but I may pitch in some extra dollars after the trade. In terms of my room and what I listen to -  I've converted a small bedroom (12x14) into a dedicated music room. I listen to pop, rock, electronica, jazz and classical.

The next upgrade suggested was an integrated amp and/or DAC. I'm actually considering this in lieu of a speaker upgrade. While I like my Peachtree, I wouldn't mind upgrading to something else - in particular the NAD M33, which my shop carries. I lose the Elac Discovery w/Roon this way (more trade-in $$!), but I've read that NAD's BluOS ecosystem is very nice. In terms of a DAC, my shop doesn't carry anything new that jumps out to me as a must-have, but they do have a lot of used gear so there may be something in the back room that might make sense.

@yoyoyaya and @bluorion, I have an older Cardas digital coax cable going from the Elac Discovery to the Peachtree, Morrow Audio SP3 speaker cables, and an Ice Age Audio Copper-Silver power cord going from the Peachtree to the Tice. I think I would do well getting an SBooster for the Elac instead of using the native wall wart, but that's an easy fix. Unfortunately the Technics turntable interconnects are hard-wired in, so I'd need to have someone service it to upgrade those.

dvujovic

nice write up about your cartridge

https://worldradiohistory.com/hd2/IDX-Audio/Archive-Stereo-Review-IDX/IDX/70s/HiFi-Stereo-Review-1977-02-OCR-Page-0040.pdf

PSB, Sonner and KEF are 3 very different but great brands, if you can try them out, (Crutchfield 60 days) I would start there. Bookshelf. 

@OP. I'd be confident that linear supply would improve your Elac, so that's an upgrade definitely well worth considering.

I'm not familiar with your cables. The best option there is to borrow something from your dealer. It will at least give you a point of reference for our own cables. One cable at a time though. First rule of audio upgrades - never make more than one change at a time!

From about 60Hz up, your speakers will more than hold their own with just about anything. But your subwoofer is an entry level unit. I would look at a REL or a pair of SVS 3000s. As for your cartridge, the stylus may be pristine, but at 50 years old, the rubber suspension of the stylus has to be hard as a rock. I would look at a high-output moving coil from Hana. If you don't listen to much vinyl, then maybe consider a DAC. Just make sure you can return it if it doesn't change things much. You have a great power conditioner, so leave that alone. I would next turn to your room. Nothing - no other component upgrade will make as much improvement to your listening. For $2500, I'd go with 2 SVS Micro 3000s and room treatment before anything else.