ust the frequencies like here is a an example you could have white noise playing that plays all frequencies equally and the one that dip on your headphones can be adjusted using the Dac Idk just my input ???Read moreShow lessWin An O2 AMP/Dac & See How Amps And Headphones Are Made1Add a comment...Zackery ThompsonShared publicly - 2013-02-12 Harlem Shake sibling style1Add a comment...Zackery Thompso