Upgrading to good headphones often leads to the realization that your music library is not up to snuff. A detailed headphone will reveal flaws in poorly mastered tracks and make low quality files not enjoyable. Getting your hands on high quality files is crucial to get the most out of your audio equipment. For the sake of keeping this section short, the following recommendations will only focus on digital music sources and we will postpone the Digital vs. Analog discussion for now.
The age old debate whether one format is better than the other. Given that you have a good source file the difference is minimal; and especially for portable use storing files in FLAC is a waste of disk space. Maintaining and collecting a library in FLAC at home is fine, but generally speaking you'll be fine if your portable files are CBR or VBR mp3.
Windows loves to mess with your sound. Be it pre-installed equalizers, the recently added sonic feature, bundled Dolby options or simply default settings that are not optimal.
When it comes to music playback you ideally want unaltered and pure 2 channel stereo sound. How do you get that? Follow these steps:
Where should you control your volume? Ideally every single software slider you can find should be set to 100% and only the analog volume knob of your amplifier should be used to dial in the volume of your headphones. The presentation below goes into a rather technical and lengthy explanation about how reducing digital volume sliders can harm the fidelity of your music.
ESS Presentation: Digital vs. Analog Volume Control