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Found 2 results

  1. I'm having an issue with an electrical buzzing noise coming out of the tweeters of my active monitors, I'm trying to determine the cause so I can fix it (ideally without having to resort to ground loop isolators). On Monday I received a new JDS Labs Element II DAC/amp unit to replace my dying Audio GD NFB 15.32. The Element is USB only, where-as I was using an optical cable with the Audio GD. Upon changing over to the Element, I noticed a 'dirty' buzzing sound coming from the tweeters (JBL 305P MkIIs) that was not there before. This buzzing is totally independent of the volume pot on the Element or volume in Windows. It ceases when I switch to headphone output on the Element or when I turn my computer off. Additionally, this buzzing behaviour is not present when I plug the Element II into other devices. I've tested it with two laptops (a dell and a macbook air) as well as my android phone. The noise seems to correlate with system load (it becomes considerably more pronounced when running a game, sounding sort of like coil whine) but also changes in pitch when I move the mouse and takes on an even buzzier sound when I use the scroll-wheel. I'm not electrically knowledgeable, so please enlighten me if I'm totally mislead on this, but if this buzzing was a regular good old fashioned ground loop issue, wouldn't it still occur even if I had the element plugged into a different source? FWIW; everything in my system is plugged into the one power-board, which is plugged into the wall via an extension cable. I can only conclude, with my layman lack of knowledge and the process of elimination I've done so far, that it's an issue with my computer since it's fine with the laptops and phone. When I think about what could be wrong with my PC to cause this issue, my mind immediately goes to my power supply, which has made a buzzing noise when running since the day I bought it last year. Does it make any sense that a bad power supply might cause something like this? If it does, I'm strongly considering buying a new different PSU and cross my fingers that it fixes it. It's not too risky as I would return my current one anyway (I've just been too lazy to do so and it hasn't appeared to have caused or been related to any real issue until this). Sorry for the wall of text, would appreciate any insight or thoughts on this! tl;dr - Active speakers buzzing since getting JDS Element II. Buzzing seems to be correlated with PSU buzzing. Speakers do not buzz with other computers used as source.
  2. Hey there, I got a problem with this headset I purchased in Singapore that is driving me absolutely crazy. Whenever I plug the USB headset into my computers (tried it on a 2013 13' MacBook Pro running OS X El Capitan and Lenovo Z50-70 running Windows 10), it makes this loud, annoying buzzing sound. Here is a sample - https://soundcloud.com/citadelcore/headphone-beep This problem persists on all my computers, I have tried it running on external power and on battery, so I'm fairly certain it's not a power issue. The weird thing is that when I mute the microphone via disabling it via the Sound Mixer, the loudness of the beeping sound is reduced by around 50%. I have tried contacting Valore around a year ago but they haven't replied to my email and I can't seem to find their phone number. Should I give up all hope or does anyone have any suggestions for what I can try? Here is the link to their store page if anyone needs it. http://www.valore.sg/Valore/project/valore-usb-2-0-gaming-headset-hs0003/ (These headphones are USB ONLY. They have a small control module with a few volume buttons, a few lights and a microphone button, which recently broke and needed some soldering to fix, but I've had this problem since day 1 so that isn't related in any way).
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