Sennheiser PC37X randomly goes bad after disconnecting the cable ?
Greetings, Yesterday I was using my headset like normal with my macbook, just listening to music and on a call with people like usual, and the headset was perfectly fine. The stock wire that came with the headset is extremely long and yesterday it annoyed me very much that it kept getting tangled with itself, so I decided to see if the cable is replaceable. I pulled out the cable from the headset and saw the adapter, and looked online for a replacement. Upon plugging it back in, the audio sounded extremely muffled and washed out. Im not sure what I did wrong to make it mess up like that as I've always taken good care of it, ive had it for about 2 years and its always just been chilling on my desk, but anywho I thought the cable just went bad and ordered a replacement. The replacement came, and the issue is still persistant, so I am not sure what the issue is I've tried multiple different headsets and the issue is not with the port, and I also tried it with my windows laptop and...
Apr 23, 2024
Notebook computers typically have isolated power supplies typically leaving the cabling (through m9xx) as the only ground path - and any such isolated supply can be suspect for leakage from the primary (AC inputs). And, any USB power supply you have connected to the 5V 2.0 jack on m9xx could be leaky - creating multiple ground loops. If you're using a notebook, this could be a tricky problem to solve - to make a solid low-impedance connection from the chassis of the computer to the same earth ground as your power amp.
I was just helping a friend debug his noisy system the other day. He was surprised to find that of 4 adjacent power outlets in his listening room , two had common earth ground, 2 had grounds that were unconnected and none were the same potential as neutral - they should be connected together at the circuit breaker. That room had been re-wired by a professional a decade ago. His expensive audiophile CD player had a leaky power supply and its RCA connections were not earth grounded and so had a 50VAC potential with no connection. There's plenty of ways to go wrong if you don't have proper grounding.