Poor music sound quality on Surfact Pro with Windows 10

I got a Surface 3 (maybe it's a Surface Pro 3, I'm not sure) with Windows 10 for Christmas (Dec 2015) and have tried listening to music while at work.  The sound quality is terrible.  It sounds "staticky", whether I'm listening from iTunes or streaming radio stations.  Is it the Surface Pro, or is it a Windows 10 problem, and how do I resolve it?

Thanks