After a number of years, I am still trying to figure out, which EQ setting works best and is more balanced with most types of music on the iPod Classic. I listen to many different Genres, and keep change the default EQ settings from Flat to Piano, Jazz, Classical, R&B, Acoustic or even Rock, depending on the album (not on the actual music genre). I find that some settings even help create a bit of distortion because of enhancing the Lower Frequencies (Bass) too much, and almost none seems to really fit with many different singers/ Bands. Have you found your favorite EQ setting? Do you leave it OFF or Flat ? Pease include the Output method (Headphones or Line Out) and the Headphones used for that EQ setting in your answer, so the whole Picture makes sense for those who want to try that sound Profile. Thank You! The one I have found to be of more frequent use is "Acoustic" with my Sennheiser Momentum Over-Ear (Headphone Out), mainly for Pop/Rock/Country, and sometimes Classical music too. "Piano" works great for Vocals!