I find my audio is too quiet for my liking when listening to some music. I know very little about audio. So my questions are:
Will a sound card solve this problem for me? And what else will a decent sound card bring?
Or am I just better off getting an amp?
what are you using to listen to it?
high end headphones may require an amp to power them, and a dac to clean up the sound, no need for a sound card. Decent studio monitors should have everything on board except a dac, again negating the need for a sound card.
if you don't have either and are using some bullshit earbuds or speakers your comp came with, drop that shit and get some decent gear.