[Copyright]

Just got this card and wanted to see if I could jsut change the headphone output stage of this card to an op amp that has a bit more bass and possibly a more natural sound.  The headphone amp is driving a pair of HIFI-780s but I find them to be a little sharp and the bass is lacking... the bass is partially lost when I moved to velour ear pads over the stocks.  Thanks for any help and also where I can purchase the opamps!

 

[Honkytime]

Firstly i would do some research first and figure out what op-amps you might want to get and what type of op-amp you need.
op-amps come in all shapes and sizes and and have dual or single outputs and might not work if put in the wrong spot or damage your
sound card. When you figure that out digi key should have all your op amp needs.