Everyone's favorite--it's a ground loop!
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Joined: May 2003
Posts: 18,044
shareholder in the making
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OP
shareholder in the making
Joined: May 2003
Posts: 18,044 |
OK, I know what's going on. I just don't know how to fix it. I'm trying to hook up my computer (3 prong plug, kinda grounded) to my second receiver (2 prong plug, at least it's plugged into the same outlet as the computer, I think). I get the dreaded buzz/hum thing. My headphone amp (2 prong plug, same outlet as computer) doesn't have the problem, but does pass it to the receiver if I hook it up with a 1/4 plug to 1/8 plug to RCA chain of adapters. Also happens with the KVM+sound thing I've got. If I hook up an iPod to the cable, no hum.
Any thoughts?
I am the Doctor, and THIS... is my SPOON!
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Re: Everyone's favorite--it's a ground loop!
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Joined: May 2002
Posts: 10,654
shareholder in the making
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shareholder in the making
Joined: May 2002
Posts: 10,654 |
Yeah Ken, you're right about the "favorite" bit. I'm pondering and I'm having trouble coming up with a loop if everything else is just grounded through their connections to the grounded(by three prong)computer. Will continue to ponder.
-----------------------------------
Enjoy the music, not the equipment.
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Re: Everyone's favorite--it's a ground loop!
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Joined: Jun 2003
Posts: 8,488 Likes: 1
axiomite
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axiomite
Joined: Jun 2003
Posts: 8,488 Likes: 1 |
Um, can't you just stand in a bucket of water while you're listening to headphones or something?
bibere usque ad hilaritatem
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Re: Everyone's favorite--it's a ground loop!
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Joined: May 2003
Posts: 18,044
shareholder in the making
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OP
shareholder in the making
Joined: May 2003
Posts: 18,044 |
Uh huh... I just wanted to listen to music from the computer on the M50s!
I am the Doctor, and THIS... is my SPOON!
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Re: Everyone's favorite--it's a ground loop!
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Joined: Jun 2003
Posts: 8,488 Likes: 1
axiomite
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axiomite
Joined: Jun 2003
Posts: 8,488 Likes: 1 |
Yeah, well, we all want lots of things, Ken. Sleep, food, HDTV, dry pants.
bibere usque ad hilaritatem
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Re: Everyone's favorite--it's a ground loop!
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Joined: Apr 2003
Posts: 16,441
shareholder in the making
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shareholder in the making
Joined: Apr 2003
Posts: 16,441 |
And, apparently, you can only ever have three of the four simultaneously. Dry pants have to lose out some of the time.
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Re: Everyone's favorite--it's a ground loop!
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Joined: May 2002
Posts: 5,745 Likes: 17
axiomite
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axiomite
Joined: May 2002
Posts: 5,745 Likes: 17 |
Quote:
If I hook up an iPod to the cable, no hum.
Any thoughts?
Try singing a few bars and i'll see if i can figure it..oh, i guess i should've read the first part of the post first. Sorry Ken.
"Those who preach the myths of audio are ignorant of truth."
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Re: Everyone's favorite--it's a ground loop!
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Joined: Dec 2006
Posts: 3,569
connoisseur
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connoisseur
Joined: Dec 2006
Posts: 3,569 |
Quote:
Any thoughts?
Is there anything else connected to your receiver like an antenna or powered subwoofer?
If you are connecting your computer with unshielded cables you could be picking up inherence from a power cord or the computers power supply.
Do you hear the hum when the computer is hooked up but powered off? It might be the power supply.
If you have some extra speaker wire you could try grounding the computer’s chassis directly to the receiver’s chassis. If this reduces the hum at least you will likely confirm it’s a grounding issue.
3M80 2M22 6QS8 2M2 1EP500 Sony BDP-S590 Panny-7000 Onkyo-3007 Carada-134 Xbox Buttkicker AS-EQ1
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Re: Everyone's favorite--it's a ground loop!
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Joined: May 2003
Posts: 18,044
shareholder in the making
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OP
shareholder in the making
Joined: May 2003
Posts: 18,044 |
There's an antenna on it. I'll try the direct connect.
I am the Doctor, and THIS... is my SPOON!
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Re: Everyone's favorite--it's a ground loop!
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Joined: Dec 2005
Posts: 1,467
connoisseur
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connoisseur
Joined: Dec 2005
Posts: 1,467 |
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