Has anyone had any experience using HDMI fiber optic converters/extenders? I have a weird ground loop problem in my system which I traced back to my HTPC. I get hum whenever I join the grounds between ...

These magical creatures crop up out of nowhere and fry your electronics or annoy your ear holes. Understanding them will doubtless save you money and hassle. The ground loop in a nutshell is what ...

I tried the solution mentioned here, and it only helped slightly. These speakers sound great, but the hum gets annoying to the point of me leaving the speakers off during normal operation. They hum, ...