Review on 🔌 TII 220 Ground Loop Isolator: Optimal Solution for Cable TV Applications by Erik Haynes

For three years I've been trying to eliminate the ground loop. I tried HumX from Ebtech. I rearranged the plugs and splitters, used the air conditioning, but nothing completely solved the problem. I was thinking of an XLR isolation transformer but decided to give it a try considering the isolation transformers cost over $200. If none of these worked, I would replace my Marantz AV7701 AV preprocessor. The AV7701's ground loop problems are widely reported on the internet. My cable TV line goes from my wall and then meets a splitter with one line going from the splitter to the cable modem and the other to the cable box. I installed this after my cable splitter and before the cable box and ground loop completely eliminated! No hum for three days. The male/female ends of this device make it easier to install behind a cable splitter (if you have a splitter) than the female/female ends of similar devices. If something else is causing your ground loop, it won't work for you, but many ground loops are caused by poorly routed wiring in the fall that isn't properly grounded. I saw this previously proposed device and found it too simple. I wish I would have done that a few years ago. There was also no noticeable quality degradation in my video signal. If you haven't ruled out a cable TV line grounding problem as the cause of a ground loop, you should try this option before moving on to more expensive potential solutions. Start with this device first.