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Hey forum! I could use a little help trying to solve a problem I recently got with my ProMedia 2.1 desktop speakers. I've had these speakers for about 8 years now and they've been great. However, a few weeks ago I decided to move my desk to the other side of my room, and when I hooked up my speakers, I heard this loud constant hum coming from my left speaker, even with the volume all the way down (not a crackle but a steady hum). At one point, it got so loud that I could smell the speaker burning, so I unplugged the 3.5mm cable from the back of the speaker and left it alone. A couple days ago, I decided to look more closely, and I noticed that when I plug in the black and red wires into the Left Satellite +/- output, there was a bright spark and the hum returned. I tried swapping wires and speakers, and it's definitely the Left Satellite +/- only. I couldn't notice anything wrong from the outside, and I checked the fuse accessible from the outside as well as the two fuses on the inside, and they look fine. I also looked around in the inside to see if I could see any loose wires or burnt pieces, and everything looked good. I tried moving my speakers back to the outlet on the other side of the room that it was on previously and it still occurs. I would really love to continue using these speakers so it would be great if I could fix this. Thank you so much!