![]() Yes, that can break a ground loop but now the device is grounded only via a signal cable which often isn't capable of handling the current required to trip the breaker if a fault occurs and even if it is, audio connections often get disconnected so if a fault occurs the chassis can become electrified. You should pretty much never break the ground connection on the mains connector. Otherwise, having a low-impedance connection between all the devices and the ground solves most of the issues. Of course you can't break a shield of an unbalanced connection so using an isolation transformer is often the only practical solution. Neutrik EMC connectors are also a very good solution. Sometimes capacitive coupling is better than no connection. Ground loops can be usually broken by disconnecting the shields on one side of the audio connections if the connections are balanced. The rest of the devices usually have the ground connection for a reason. No, no, no, the devices with two-pronged power connectors are double insulated. No posts on products or items that are not diy relatedīuying or Selling of equipment goes to /r/avexchangeįull Rule list here Check out our sister subs /r/diytubes for vacuum tubes and /r/headphonemods for headphone DIY! r/synthDIY for all your DIY robot tone needs r/vinylpro and /r/vinyl for turntables and shellac spinnery r/budgetaudiophile Affordable stuff you can't build r/audiophilemusic Music for your system and your ears r/diysound is the right place for diy speakers etc Professional installers enjoy the details and fine workmanship found in Earthquake Sounds Superior Audio Signal Filters & Converters. A ground loop typically occurs when one or more pieces of your entertainment system are plugged into the AC (alternating current) at different locations, then connected together by electrical. Another reason could be your transformer, bad wiring, or defective equipment. This is the most common reason for the humming noise, and fortunately, the easiest to solve. Usually, the hum emanates from your speakers and is caused by a ground loop. r/diyaudioswap Have parts, skills, or projects that you'd like to sell or trade? What to do What could it be Firstly, let’s take a deep breath and relax. r/diytubes Discussion of vacuum tubes and their uses Find helpful customer reviews and review ratings for PYLE-PRO Compact Mini Hum Eliminator Box-2 Channel Passive Ground Loop Isolator,Noise Filter, AC Buzz. r/audioengineering Recording, editing, and producing ![]() This constant whistle-like sound also known as ground loop noise can be annoying and may prevent you from enjoying your favorite jam. Sometimes you may experience static or distortion to the audio signal. r/headphones All topics related to headphones A DIY ground Loop Isolator may be your only solution to having a clear radio reception. r/audiophile Quality audio reproduction of all forms. See the list of past AMAs here! Related subreddits Interesting Links Our Wiki Great Resources Why your first speaker should be a proven design A place to discuss DIY audio, share plans and schematics, and link to interesting projects. ![]()
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