My old computer bit the dust ,it was an older(5-6 yrs old) AMD gaming rig with onboard sound and I think sound blaster drivers.5.1 speakers (i think turtle beach,can't find a name on them).Sounded really good while listening to youtube etc. The interface looked like a stereo equalizer and really let me tailor the sound.
I picked up a dell Optiplex gx620 refurb off of Craigslist pentium 2.8 dual ,2 gig ram w/on board sound.A nice upgrade for me.But the sound is below par from what I am used to.I think the Dell uses Sound Blaster drivers.I have updated everything but it still sucketh to a degree.
I would put the output of the new unit to about 80% of the older system and I cannot tailor the sound.Which I need as I have some hearing loss in certain frequencies due to an ear infection years ago.
One friend recommended Foobar 2000.It seems to work w/downloads not real time feeds.So that is out.