Yes, a better DAC may improve the music, but with the sound card I have, what is better and how much difference will there be. Not sure if my ears could tell the difference. I have the FIIO E17 and even though I have only listened through the HD598 and really have not spent the time to try and determine the difference, not sure if it is worth the upgrade price. Once I get the new headphones, I will take some time to see if I can detect a difference and maybe invest in a separate DAC. I know some can tell the difference, but I am not sure if the cost is worth the upgrade. I will find out soon though. Maybe with the new headphones I will be able to hear the difference.