Pioneer BULIT 8 power issue

I purchased a pair of Pioneer's BULIT 8 studio monitors, and after their arrival today, I absolutely loved the first 30 minutes of use while they were both functioning properly. I'm a bedroom DJ, and I have the monitors running through my DENON X-1600 digital mixer via XLR inputs. The issue I'm having is that the right channel keeps powering down and then back up while the volume is cranked. At low gain/volume however, I'm not having any issues.

My signal from the mixer output is peaking at no higher than 0dB, the HF level on both monitors is set to 0 dB, and the monitor gain levels are at around 12 o'clock. I'm not driving them that hard, nor am I running my channels into the red. I've also tried RCA out with the same problem, so I don't believe it's an issue with my mixer. Am I experiencing a power issue? Possibly an unstable current or voltage output? The power draw from these speakers isn't THAT high, so I wouldn't think a standard 120V outlet would have that tough of a time..

Maybe a power filter would fix my problem? Simply trying to get some troubleshooting ideas, or see if anyone has experienced similar issues. I couldn't find any material regarding the issue via Pioneer support.

Thanks