Is this Spotify premium? The problem with Spotify on Windows is Spotify itself. The app doesn't use the most direct path to audio hardware which causes some quality loss. You need to at least set your sound card to 44.1kHz sampling rate in its settings, then disable volume normalization in Spotify settings and select the best quality there. You should listen with Spotify volume slider at max, same goes for the Windows system volume. And this still doesn't address the main issue I mentioned. I found that routing Spotify through JRiver's WDM driver helps a lot, JRiver isn't free but you can try it for 1 month. A separate DAC would likely be an improvement but the equal problem is the Windows Spotify app. Instead of a DAC you might want to get a Chromecast Audio streamer, it has its own DAC which is going to be better than your PC sound card and free of the issues I mentioned. One limitation you'll need to start playing from a mobile device, after that you can control playback from the PC. Another caveat it doesn't support gapless playback which can be an issue if you listen to a lot of Pink Floyd or classical music .