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Hum and Buzz – Part V

Balanced Connections. In pro audio balanced connections are used almost exclusively, and with good reason. Using balanced connections is very effective in reducing and eliminating pickup and ground loops in the audio. The most common balanced connections are in the form of XLR cables and ¼”...

Posted to Andy's Blog (Weblog) by Andy W on 01-21-2008
Filed under: hum, buzz, balanced
Hum and Buzz – Part IV

Antenna/Cable TV Ground loops. OK so you’ve narrowed your ground loop issue down to your cable connection or your rooftop antenna. You’re not alone; this is one of the more common ground loop issues, but I don’t necessarily want to want to get into the gory details, so here are a few...

Posted to Andy's Blog (Weblog) by Andy W on 12-14-2007
Filed under: ground, hum, buzz, video, cable, antenna
Hum and Buzz – Part III

Ground Loops 101 Let’s start our discussion of ground loops with two pieces of chassis grounded equipment. Class II equipment can exhibit hum and buzz too, but the mechanism is a little different, but we’ll talk about that in another installment. We’ll also start with an “unbalanced”...

Posted to Andy's Blog (Weblog) by Andy W on 11-30-2007
Filed under: ground, hum, buzz
Hum and Buzz - Part II

Electrical equipment is grounded for safety reasons. Grounding can also help prevent RF interference First… let’s get some agreement on nomenclature… since I’m writing, I get to pick. [:neener:] There are many different ways to refer to “ground” and much depends on the context. As with everything else...

Posted to Andy's Blog (Weblog) by Andy W on 11-16-2007
Filed under: ground, hum
Hum and Buzz – Part I

It is a fact of life. Ground current happens. And where it flows makes all the difference. In a perfect world there would be no ground current on the AC power line. AC would enter on the LINE, and return on the NEUTRAL, and the earth ground would just sit there. In the real world there is inductive and...

Posted to Andy's Blog (Weblog) by Andy W on 11-09-2007
Filed under: ground, hum
Promedia 2.1 Amp

I bought a 2 year old system off of someone for $50 and everything was working. A couple days later, I hooked it up and the left speaker didnt work, I suspected wiring so I switched the wires and checked and now neither speaker works. Looking at a couple of options I opened the sub and found a blown...

Posted to Computer Speakers (Forum) by Gary_singh_111@hotmail.com on 07-07-2009
Filed under: fried, broken, dead, fuse, computers, Klipsch, buzzing, heat, Promedia, burnt, THX, rumbling, subwoofer, Rattling sound, overheating, Promedia 2.1 subwoofer, pop crackle on off crackling hiss, promedia 2.1, distortion, amp, sub, sound, busted, speaker, pictures, pic, pics, not working, speakers, noise, picture, damaged, amplifier, satellite, hot, Computer Speakers, 2.1, Problems, hiss, hum, Promedia 2.1 satellite distortion, Promedia 2.1 left channel doesn't work right speaker, sound issues, left speaker, Picromedia 2.1, Troubleshooting, Right Channel, lost channel, port, 2.1 control pod troubleshooting left, Promedia Promedia 2.1 Wont work amp, promedia 2.1 left channel dead, left channel
Classic ground loop hum on Promedia 5.1 with or without source.

Hi Folks! I get a quiet 60hz hum on subwoofer, front, center, and probably rear. I get it with and without the inputs plugged in. Yes, I've tried other outlets, same hum. I tried unplugging speakers. It's pretty much always there, same loudness regardless of the volume setting. Is it likely something...

Posted to Computer Speakers (Forum) by Charlweed on 01-13-2009
Filed under: Promedia, subwoofer, 5.1, hum, ground loop, DIY, 60hz
Re: CS-700 - disappointed so far

I contacted Klipsch support and they had this to offer regarding the subwoofer: "Sub - do you happen to have an adapter for the power cord that converts from a three prong cable to a two prong cable? If so, try using this with the subwoofer and see what happens. This is called a ground lift adapter...

Posted to Home Theater (Forum) by watchmefly on 01-11-2009
Filed under: subwoofer, home theater, cs-700, speakers, audio, Bose, Buzz, Hum, Bose 321, CD, GSX, GS, mp3
Re: Noise. Static/fuzz noise from all speakers.

I have had the v.2 400 series speakers for nearly 9 years now. I remember having to get the controller replaced because it was buzzing and the volume adjustment created static (this was around 2002). Since then I have been blasting and blasting and blasting ..... continously since then. Last year both...

Posted to Computer Speakers (Forum) by risottto on 01-08-2009
Filed under: broken, Promedia, 5.1, controller, hiss, buzz, hum

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