Speaker static

Alienwho

Diamond Member
Apr 22, 2001
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I inherited a crappy old RCA RT2770 5.1 receiver. I plugged it into my green onboard audio connector in my computer. Anyway, that doesn't matter.

When the amp is on my speakers (Klipsch Promedia 5.1) emit a subtle yet intolerable static noise. Most people probably wouldn't notice it but I have sensitive ears and it just pierces them. Everybody knows and has heard the static I am talking about. Nothing else is connected and I am using the speaker wire that came with my speakers. I know the problem isn't the speakers because they didn't have this problem before.

I read that maybe it is a grounding issue but I don't know how to ground it. There is a GND option on the back of the receiver, and I tried connecting that to a screw on the wall and different metal objects around my desk using some extra speaker wire and nothing happened.

Any ideas? Just a crappy receiver? I'll ask the guy who gave it to me tomorrow if he had the same problems.
 

Alienwho

Diamond Member
Apr 22, 2001
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No it makes the noise even if everything is unplugged. Just the simple act of having the speakers connected and the receiver turned on emits the noise.
 

Thump553

Lifer
Jun 2, 2000
12,676
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I have my doubts on the objects you are grounding to. Just because it's metal doesn't mean it's a good ground. If you have baseboard heat, try grounding it to the heating pipe inside the baseboard (fins OK too).

 

Howard

Lifer
Oct 14, 1999
47,989
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If there's static even when everything is unplugged, I'd guess that the receiver is picking up EMI somehow. Don't know how you could solve that, though.