Can I improve my setup? (probably)

Hello all, I listen with great pleasure to my 1,600-odd album music library with Roon, a set of KEF wireless LS 50 and a 5 year old MS Surface Pro-4 i7, with the music actually on its 200Gb SDX card (!)

And the sound quality is great: bouncy, clear, plenty of stage depth. But I’m wondering if it could be (exponentially?) improved with additional hardware for no more than a few hundred $'s?

I can tinker with stuff, but I’m in my mid 60’s already and have mild case of tinnitus, imperfect hearing, etc. etc. so be gentle please

Thanks for your suggestions,
Bernard

That’s a great setup! Personally, I’d hold on to my money, as it sounds like it’s working for you, and you don’t mention any specific shortcomings.

Maybe add a subwoofer if you want more bass.