I have a pair of Rokit KRK8s using balanced TRS plugged into an external DAC (scarlett 2i2). The buzzing happens when i move my mouse, scroll, and gets insanely bad when I play video games. When I play video games and interact with stuff in the game (like a menu) the buzzing fluctuates in pitch. I have my speakers plugged into a power strip (which boasts that it reduces audio interference) and the speaker power cords and powerstrip cord has 3 prongs. I've heard people say its coil whine, or a ground loop, or something, but nobody seems to have an answer. Heres a video of the buzzing in action: https/www.youtube.com/watch?v=33wEjl5MtSc