Inside the house, the wire from the satellite dish is fed into a splitter and then distributed to the various rooms with DirecTV boxes. When I look at the satellite dish, it looks like it has a proper ground wire from the splitter on the outside of the house, leading directly into the ground. The second source of ground loop hum is the coax cable for the DirecTV coming from the wall. I was thinking that something like this ( Ebtech Hum X Voltage Hum Filter) may get rid of the hum, however, I am open to other ideas. Simply, when it is plugged in, I get the hum when it is unplugged it is gone and when it is connected with a three-prong to two-prong adapter, the hum is gone. ![]() The first source is the Oppo Blu-ray player. My problem is that I have found 3 sources of ground loop hum and I am looking for the best and safest way to get rid of the hum. All of the components are connected via Bluejeanscable Belden Series-FE Bonded Pair HDMI cables, all connections between the Marantz preamp and the amps are via BJC Belden 1800F Balanced Audio Cables with Neutrik XLR connectors and the speakers are all connected via BJC Belden Series 5000, 12 AWG cable with banana plugs. For speakers, I have an SVS PB13-Ultra Subwoofer and Paradigm Prestige 95F for L and R, 55C Center, 25S x4 for sides and surrounds and CI Elite E80-A x4 for ceiling speakers for Dolby Atmos. ![]() The amps are on their own, dedicated 20-amp circuit and the rest of the equipment are plugged into an APC H15 Power Conditioner. My current home theater consists of the following: Emotiva XPR-5, Emotiva XPR-2 and Emotiva XPA-5 amps, Marantz AV7702mkII preamp, LG OLED65E7P television, XBox 360, XBox One S, DirecTV 4K Genie Mini, Oppo UDP-203 4K UHD Player and Roku Ultra. ![]() This may be a somewhat lengthy question, and I apologize in advance, but I have been dealing with this problem for quite some time and would like to finally (safely) fix the problem.
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