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Power cable on pc causing interference when I connect pc to an guitar amp. When

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May 12, 2012 8:21:35 AM

Hello,
I am getting interference from the mains from my laptop when I plug my Laptop into a Guitar Amplifier. When the laptop runs on battery I have none. What do I need to do? Do I need a better power Cable?
a b ) Power supply
May 12, 2012 9:20:11 AM

are you running the laptop and amp on the same plug (IE extension lead or same faceplate in the wall). if you have a surge suppresor/protector try using that.
I'm no electrical guy but it's just a thought, maybe it will stop the interference between the two going down the power.
a b ) Power supply
a b D Laptop
May 12, 2012 11:38:31 AM

most times it not the laptop but the ac to dc brick. there a transformer in that brick and it does make an electrical field. you can try and move it away from your amp and see if that helps.
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May 12, 2012 11:59:36 AM

You need a power conditioner / noise suppersor. Try to bring a true earth ground to your guitar amp. I was getting noise from my cable box to my behringer amp until i got a suppressor
May 13, 2012 6:40:47 AM

jwk3 said:
are you running the laptop and amp on the same plug (IE extension lead or same faceplate in the wall). if you have a surge suppresor/protector try using that.
I'm no electrical guy but it's just a thought, maybe it will stop the interference between the two going down the power.



I have tried it in different wall sockets away from each other but its just the same
May 13, 2012 6:42:49 AM

shawn808 said:
You need a power conditioner / noise suppersor. Try to bring a true earth ground to your guitar amp. I was getting noise from my cable box to my behringer amp until i got a suppressor


I will google suppressors to see what I need. Ta
!