Okay, so now I spent this weeks disposable income on some studio monitors, I was mixing through Bose 701 speakers, and I read that you need reference monitors to mix with.

Okay, so I come home all happy (has not quite sank in that I will need to eat raman noodles all next week) plug my monitors in, turn them on...........

buzzz........................

I did not notice this with the Bose but it was probably there too. I tried Everything I could find about ground loops on the internet, and tried to isolate the loop, to no avail. I know it is not the board or the speakers, (at least that is a start I unplugged everything! Buzz still there!

When I unplug the mAudio Delta 66 from the computer, no buzz. Not sure if this is a sign or not, because the mAudio needs the power from the PC to work properly.

The only think I can possibly think of, is the computer power supply, but I do not think this is the case. Any ideas? Anyone? Is there any way I can lift this prior to the monitors? Again, I am not sure where the fault lies...

Have a look here:

http://www.audiocourses.com/article11.html
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Recording Studio Suntans

Thanks for the reply AC, I appreciate it.

I am the type of person however that researches first and asks questions later... I found this last night.

I talked to another person today from a near-by store, and from what he said it sounds impossible to still have a buzz. My audio system is all on 1 circuit, and the junction box works, and all my chords are decent without shorts.

I have unplugged everything except the compyter, soundboard, and monitors, I still get a buzz. (I DO NOT get a buzz from just the soundboard to monitors though unplugging the computer) so the fault lies somewhere between my wall plugin and the board. I unplugged computer monitors, and left just the computer running without any other cables connected. (including Keyboard, mouse and all usb) I am not sure, but it sounds like a ground leak in the computer, but where?

I do not want to unground everything, as I fear a shocking result. I do need to get to the bottom of this though...

One way around it would be to use an isolation transformer, like the good old broadcast industry.

Would be a work-around but sure to fix it.
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Recording Studio Suntans

Last edited by AC on Thu Nov 24, 2005 10:52 pm, edited 1 time in total

I thought about that, but I will do that as a last resort.

I still have a few ideas...

it's very frustrating right now. I really want to hear my music through these monitors without the buzz.

The error is somewhere in my computer, there is a ground faulty somewhere... Perhaps I will try a different power cable.

If I ground lift either the computer or the speakers, the buzz goes away. Is it bad to ground lift speakers? There is no risk of shock if I do, is there?

Not sure how you are intending to ground lift speakers they only hav a negative and positive connection going to them, you mean the amplifier that powers them? If you mean that I'd be cautious, it's not good practise.

A cheap transformer based DI in your audio signal path from comp to amp sure do the trick.
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Recording Studio Suntans

They are active monitors, so yes that is what I meant about ground lifting.

Ya, you are right, I need to do this right way. Thanks AC