All, leaving a reply here so it's useful to anyone who encounters this issue. It seems the audio problems were caused by the Corsair iCUE software running in the background, I uninstalled it, restarted the computer and the problems went away. I will not be using the headset features that require the software to be installed.
Hi Everyone. Specs: I've noticed with both the internal speakers, USB Speakers and USB headset that there's periodic audio cracks/stutters. The computer has the latest Realtek audio drivers from Dell as well as the MaxxAudio Pro software. I've disabled any enhancements in the application and tried to disable enhancements on the audio device properties as well. It doesn't matter which application I'm using to play it, I mainly use iTunes for music and Chrome for music/videos/etc. Additionally, when playing Youtube videos, the audio seems to increasingly lag behind the video as the video progresses. I'm thinking it's a driver issue but not sure if anyone else has experienced this. Any help would be appreciated. I don't care about the equalizer or special effects of the MaxxAudio software.  
Vostro 15 7510 Audio stutter/crack