Hi - relative newbie here although lurking for long time.
I am thinking about acquiring a desktop computer system that is relatively inexpensive (have $500 in my account for this). I currently have an old pair of Grado 60's that I plug directly into my laptop - my Grado's are about 15 years old and at the end of their days. I have a good small dac and all the cables I need to set this up - just need headphones and an amp to plug the dac into. So looking for newbie advice - I am good with buying used - what would you buy. Oh yes listen to all kinds of music although have aging years and seem to be sadly moving away from the likes of Porcupine. Finally I do typically like tube gear (have a set amp, and a doge tube preamp, plus a lampizator dac in my hifi setup) but know this might not work for my budget.
Appreciate any experienced advice with this modest system.