Devices > Sound Cards, DAC's, Receivers, Speakers, and Headphones

OT: Electrical Interference on Speakers

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TimB:
I'm getting some buzz on my wall-socket powered speakers when there's no audio (which I understand means I'm getting it somewhat when there's music playing, I just can't hear it as easily).

I've moved the offending device (a backup PC) to another outlet in the same room and the buzz is less but is there anything I can buy to cut this out totally?

Thanks!

-=Tim=-

Alex B:
At first, did you notice that there is a new forum?
Device feedback, Other Hardware
Don't be surprised if somebody moves this there.

You could try to find the interference leak route. Is it by power cord, LAN, TV card antenna cable or even aerial e.g. non-shielded speaker cords or connectors?

If the buzz is transmitted by the wall power sockets I think a cheap one PC UPS in one of the sockets could isolate it.

TimB:
I didn't see that other forum but have to confess even if I had I might not have posted there as the traffic seems pretty slow. ;)  If I have to go there I have to, I'll surrender to J River.

I have power strips on all the outlets but I assume I need more than that?

-=Tim=-

Alex B:
You didn't mention what other connections you have between the PCs besides the mains power.

What happens if you separate those speakers from the PC line out, turn off that PC, but leave the speakers and your second PC powered? Is the buzz still there?

You should try every possible separate combination. In that way you can isolate the route of the interference leak.

KingSparta:
1. Shilded Cable
2. Remove Or Turn Off Other Items On The Same Line (Like A TV Set, And Not Just That Plug)
3. Install A Line Protection Device To Reduce Interfearance
4. is there any local radio or tv stations near?

if you can try eliminating devices or reasons why you may come up with a cure.

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