Ground lifting to kill noise

[Kane17]

I was thinking about plugging my head into a 2 prong plug adapter to kill the noise.

every time we turn the lights on I get a pretty nasty buzz from my emulated output.


Is this very dangerous??

 

[Fender_Punk]

Re: Ground lifting to kill noise

I was thinking about plugging my head into a 2 prong plug adapter to kill the noise.

every time we turn the lights on I get a pretty nasty buzz from my emulated output.


Is this very dangerous??

Yes. When it comes to my tone and my life, my life is a bit more important. Hope it is the same for you, no life, no tone!

 

[Kane17]

Re: Ground lifting to kill noise

oh, ok..

bummer


Any other suggestions to kill noise without killing me??


Our sound board doesn't seem to pick up the noise....maybe I should try plugging into the same receptacle...though I would need a long extention cord, is this a good thing to look in to (I'm not there at the moment so I cant just test it).

 

[scottish]

Re: Ground lifting to kill noise

depends on whats causing the noise. are you sure its ur head?

 

[Kane17]

Re: Ground lifting to kill noise

Well I'm not sure.

I only get the noise when I turn on all the lights, and this is a church so there are quite a few lights

 

[scottish]

Re: Ground lifting to kill noise

hmmm, yeah thats a tricky one. i def would not advise plugging into a 2 prong...maybe try to find some kind of buffered power supply that sits between your amp and the wall socket.

 

[marvar]

Re: Ground lifting to kill noise

watch this!
http://www.taylorguitars.com/see-hear/Video.aspx?file=AudioGrounding_High.wmx

 

[Rich_S]

Re: Ground lifting to kill noise

Keep your amp plugged in with the ground pin intact. You need to break the loop between the amp and the PA (you're connecting a direct output to the PA, right?)

You need a direct box with a ground lift switch. A passive unit like the Whirlwind Director or a ProCo is perfectly fine, and eliminates battery hassles. Plug your amp's output into the box, run a mike cable from the box to the PA or snake, and experiement with the switch to see which position is quieter.

 

[muttonchopsrule]

Re: Ground lifting to kill noise

are the lights florescent? are they in close proximity to you when you are playing?

if not, a good place to start troubleshooting would be to plug your amp into a different power outlet.

 

[marvar]

Re: Ground lifting to kill noise

Yes, sounds like the house mixer and your amp are at different ground potential, get a DI with a ground lift and try that.
If you go to a 2 prong adpt. then you will have no ground on your amp, and then you will get lots of noise.
Another thing=the outlet you are plugged into , or the house PA may have a bad ground
If you haven't watched that link on my previous post, you really should, you will learn a thing or two, it's very informative.

 

[Rich_S]

Re: Ground lifting to kill noise

I posted some links in this thread here to some technical papers on Rane and Whirlwind's sites - good reading material on DIs and general audio line stuff.

 

[Kane17]

Re: Ground lifting to kill noise

Hey thanks guys

It turns out that I was able to kill the noise with a REALLY LONG extension cable.

I'm now on the same plug as the PA.

Thanks!


Will look at all your links for reference!