I've seen that link before. Hum-X did not help. Unplugging the TV did not help either. Directional RCAs did not help. I've been working on finding a permanent solution with Justin, and he's been very helpful. The best solution we have currently is just using a 2 prong power cable with the Kenzie Encore. It's not dead silent, but it's not far off. I'd like to find a better solution. Just takes time. Touching the RCA connectors on my interconnects + metal on the amp or DAC seems to make the noise floor the quietest. Unfortunately, that's not a great solution. Will have a diagnostic kit soon as well as the XLR to RCA transformers. If neither of those things seem to solve the issue I will be interested in spending quite a bit of money on a nice power conditioner. Maybe that'll do it. Maybe not. If not I'll just return the power conditioner. I can confirm that there is no hum if I plug my battery powered phone into the amp and no hum when the amp has nothing connected to the RCA ins. The hum only occurs when the amp is connected to either my Onyx or my phone while it's charging via my dock. I do not believe the hum is an issue with the amp itself. I've always had issues with ground loops here. It just bothers me more either because it's a little louder now or maybe just because I have a much more expensive amp now. Considering my current amp cost over $2000 more than my previous one I'm probably just being more picky.