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Cable box causing hum. Need to fix? | AVS Forum
https://www.avsforum.com/threads/cable-box-causing-hum-need-to-fix.1447566/
To clarify, there is no ground problem per se. The issue is actually caused by grounding that's electrically correct, it's the inherent deficiencies of using unbalanced audio connections that results in hum. This link explains why. In your case the cable box/cable ground adds one additional ground path to the system that must be isolated.
How to find and fix hum in 3 easy steps – PS Audio
https://www.psaudio.com/ps-how/how-to-find-and-fix-hum/
So I’ve isolated the source of my hum to be the cable (no surprise there). I tried the suggested cable TV isolation transformer as suggested but it did not work. The only coax I could connect it to was the cable in on the cable box. My cable audio out is connected via RCA plugs to a Sonos Connect which then feeds outdoor speakers.
How to isolate cable box to eliminate hum - AudioShark
https://www.audioshark.org/vibration-isolation-devices-26/how-isolate-cable-box-eliminate-hum-11774.html
Re: How to isolate cable box to eliminate hum. If going for Sorbothane, you can buy 1 foot squares from McMaster Carr and cut them yourself for lots less. You need to use a straight edge and a new utility blade to cut it. I bought a few 1/2 inch slabs and cut 2" squares for use under everything. -----------------. Brian.
How to get rid of hum and other noises from your audio ...
https://www.techhive.com/article/582313/how-to-get-rid-of-hum-and-eliminate-other-noises-from-your-audio-and-video-systems.html
The first is to never run a power cable across or near audio or video signal cables, including antenna wires. Modern signal cables are well shielded, but …
Loud audio hum when comcast box is connected. | Xfinity ...
https://forums.xfinity.com/conversations/nonx1-service/loud-audio-hum-when-comcast-box-is-connected/602daf20c5375f08cd01cbb3
When the cable for Comcast/Xfinity is connected to the system it causes a very noticeable hum/buzzing sound from the amplifiers. I have two set-top boxes and they both do it. Just touching the ground from the coax connector to the system causes this. All my equipment is bonded to a central point as well as all my amateur radio equipment.
Eliminating System Hum From Cable TV Box | Steve …
https://forums.stevehoffman.tv/threads/eliminating-system-hum-from-cable-tv-box.137091/
Had the same ground loop problem. You can get an isolation transformer (around $10) a small connector that connects the the cable to your box, but even with that, I still got a hum. I called Comcast bitched loudly and had them come out to properly ground their cable that comes into the house. That worked.
Avoiding ground-loop induced hum in audio ... - CHANNEL D
http://www.channld.com/hum.html
Avoiding ground-loop induced hum inaudio connections. Input "hum" can arise from small ground potentialdifferences between signal inputs and outputs. The grounds between sound hardware 'boxes' are establishedby the AC outlets, and through signal cables. Various factorscan cause small ground potential differences between the soundinput (computer) and output (the sound …
HDMI causing hum? | AVS Forum
https://www.avsforum.com/threads/hdmi-causing-hum.1269519/
1. Disconnect component cables from projector to directv box, noise goes away. 2. Disconnect HDMI from projector to blu ray, noise goes away. 3. In 1 & 2, the noise is still there when there is no power going to projector. 4. Disconnect both coax feeds to directv box from multiswitch, noise goes away. (disconnect only feed noise still there) 5.
3 Best Home Theater & Audio Repair Services - Hudson …
https://www.homeadvisor.com/tloc/Hudson-OH/Home-Theater-System-or-Media-Center-Repair/
Unscreened Home Theater Services in Hudson, Ohio. Integrity Technology Specialists. 500 Sycamore Lane # 204. Aurora, OH 44202. Mossor Home Inspection. 3224 15th St. Nw. Canton, OH 44708. John M. Vidmar dba JV Tech Installations. 211 Adams Ave.
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