I recently picked up a new computer and of course it had the same sound bloatware as everything else already pre EQed system wide. So of course that got me thinking and after I ended up here again I was reminded that DACs exist. I have my trusty ATH-M30 pair for computer listening and I can appreciate the quality of lossless on them, even with my motherboard's headphone output. My question is this: is there any worthwhile DAC purchase ($50 new or used - budget level) that would give me an appreciable benefit in sound quality with those headphones? My motherboard has Realtek audio and I'm really wondering if Dell (who made both of my computers) put their own EQ in there to compensate for the onboard audio's shortcomings. (The last one had similar EQ software and also Realtek.) Edit: forgot to mention if not obvious that I turned the EQ software off. Thanks for any help and suggestions!