grounding

  1. Grounding issue with laptop power cable/guitar

    Hi, I have a macbook pro laptop and my audio interface is the Apogee Duet 2. Whenever I plug my guitars into the apogee interface I've got a hum going on. I can get rid of the hum if I take out my laptops power cable however I then have an issue of the laptop overloading frequently (not running...
  2. Apogee duet 2 hum / grounding issue?

    Hi I have an apogee duet 2 , using garageband on macbook. Whenever I run my guitar through xlr or instrument input I have a very loud hum that does not go away unless i put my hand on bare foot on the apogee. Its becoming annoying playing guitar with my foot on the thing any advice on how to...
  3. Watkins Copicat grounding

    Hello everyone, I just bought a Copicat ic300 and it has a 2 core mains wire which means it's not grounded. I've had a look around the web but can't find instruction on how to ground it. Can anyone help? is it just as simple as replacing the 2 core to 3 core and connecting the ground to the...
  4. Deciding what way to troubleshoot background hiss or grounding problem...

    So, I have been working over the past couple of years intermittently trying to record both my guitar, and lately my voice, using my laptop and audio interfaces. I have always run into the same problem: background hiss and white noise. I have done this using Windows (XP, Vista, and now Windows...
  5. Direct Injection box Grounding Theory

    In a properly wired DI box, the shield of the unbalanced connection is wired to pin 1 of the XLR. Since the shield is signal-bearing, this would induce a voltage over pin 1 of the XLR line. A ground lift switch breaks this connection, but why would you want it to begin with? Wouldn't you always...
  6. Grounding Problems w/Rack

    I have slowly over the yrs ended w/a bunch of cool FX but now when I turn them on w/a Furman PC I get a loud thump. Some of the FX have 3 prong and some 2prong.Before I start ripping it all down any advice.Could I have a bad cap to ground ect.How does a studio keep it OK. Here a list,1)furman...
  7. Electrical Grounding Issues?

    The amp I just got secondhand off my friend (actually third hand because he got it from his friend...) has a bit of a problem in the grounding dept. One of the first things I noticed was that the plug didn't have a ground on it. It did, but it was torn off/broken. Is this a problem? I have...
  8. Codemonkey

    Confirmation - Balance, Grounding, DI Box

    tl;dr: DI fixes ground loop? I've had the Church on my back (one guy anyway) about the loop for deaf people. Now while I'll not go into the politics and just say I'd prefer people to use their hearing aids to amplify the ambient sound, not tune into a dodgy loop... ANYWAY I digress. Mixer...
  9. Grounding my patchbay

    i just picked up a neutrik NYS-SPP-L1 stereo patch panel. it came with a bag of grounding clips and i dont know what channels to apply them to.i have a neutrik NYS-SPP-L patchbay as well and that one didnt come with grounders. can anyone explain to me the difference in the two? can someone...
  10. grounding issues with guitar amp

    i have a old gibson falcon guitar amp that i like to record with the only problem is when its miced up if i touch the guitar and my studio gear it shocks me. there is no ground on the amp, is this my problem? can it be fixed? thx
  11. Mini-Me/grounding and older mics

    Hi all This is something I'm just a little curious about. I use an Apogee Mini-Me for everything. When I use any of my newer mics I never hear any hum. However, with a twenty-five year old AKG C-34, or an eleven year old U87 there is an audible hum unless the Mini-Me is earthed (using an...
  12. Need advice with audio wiring and grounding.

    I've received three of the four Switchcraft 52 point 1/4" TRS full normalled patchbays that I ordered and am in the beginnings of wiring my studio (up until now I've used Fostex PB48B balanced TRS patchbays). I've built my audio panels, had them punched and mounted the XLR & 1/4" TRS jacks. With...
  13. help wanted on grounding advice

    I have worked on a lot of different systems, by SSL, Neve, Trident and others, and notice that there are MANY opinions on carrying the ground wire in a cable. I am wondering about advice any here could give me, or even opinions for that matter... I have both balanced AND unbalanced gear in my...
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