SurroundBar 6000 seems to be blown

[Vital]

Not sure how long it's been going on but my wife noticed it yesterday.
There are constant loud noises in the background if you will. Sounds like distortion or a blown speaker. Seems to be amplified when lower frequencies are produced. And I don't mean deep subwoofer type bass, I'm talking about LOWER ones when regular human voice speech is on.

I tried taking a look at actual speakers inside but can't get grill to pop off easy enough so I'll stop before I break anything haha.

Blown? How to check to make sure?
Any replacement speakers I can drop in instead of "factory" ones?
And if so - how do I separate upper grill from the main housing to get to speakers?

Thank you!

[rpf65]

Call Polk customer service. You don't want to void your warrenty.

[Vital]

After a bunch of back and forth troubleshooting I realized that noise was coming from a subwoofer, not bar as it first seemed to.
A simple turn it off then turn it back on thing fixed it. For now at least. Have no idea what the hell happened there and why but I hope it will not come back.