I had a similar problem with my office solid state rig- some records sounded unpleasant and harsh. I experimented with an eBay buy- a 1996 Audio Research SP-9 preamp with a phono section as they all had back in the day. All in about $1500. I had to buy some decent RCA cabling as my system was all XLR. The tube preamp warmed up the old recordings nicely and it's relaxed presentation was pleasing to me. I swapped the power amps (Bryston 4B3 to an ARC VT130) with little satisfaction. The SS power amp was way quieter and not as sexy but the bass was much better- tight and strong. Time has been a friend to the Bryston brand.
The tube gear is noisy compared to the 2025 Bryston amp and BR 20 preamp. I guess it's a trade-off. Warmer tube sound with some background noise vs. dead quiet SS gear that is colder sounding.
Anyhow- my point is the cheap (by today's standards) ARC preamp was a welcome addition to my office system- adding that "fireside with friends" feeling to the music. I want a ref 6 SE now- greedy eyes LOL.
Congrats on that 232. Nice piece!

