Using Bose headphones with new XPS 15 9570. I was experiencing intermittent static and crackling. I tried to follow some solutions for previous models with no success. I then tried clicking the Spatial sound on Speakers/Headphones Properties and selected 'Windows Sonic for Headphones' with 'Turn on 7.1 virtual surround sound' box checked. Clicked Apply. No more intermittent static since I did this. It's only been 10-15 minutes, but this seems to be a successful workaround. Dell should probably look into the reason for this intermittent static and crackling, but this may be one solution.