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Looking for an affordable solution to "dirty" ground

post #1 of 2
Thread Starter 

I have a laptop that I want to use to listen to music with my Little Dot I+, however the laptop completely ruins ground and causes a ground loop when plugged in. This creates horrible noise through the amp. Using a Grub DAC sort of helps, but only in that it makes most things louder than the noise - the noise stays level. The noise is present in any other device (like my iPod Touch) connected through USB.

 

So basically, I need something that isolates ground from my laptop and doesn't cost the $100 that a Firestone Audio Greenkey does. Any suggestions are welcome, aside from buying a new laptop.

post #2 of 2
Quote:
Originally Posted by demize View Post
 

I have a laptop that I want to use to listen to music with my Little Dot I+, however the laptop completely ruins ground and causes a ground loop when plugged in. This creates horrible noise through the amp. Using a Grub DAC sort of helps, but only in that it makes most things louder than the noise - the noise stays level. The noise is present in any other device (like my iPod Touch) connected through USB.

 

So basically, I need something that isolates ground from my laptop and doesn't cost the $100 that a Firestone Audio Greenkey does. Any suggestions are welcome, aside from buying a new laptop.

 

Heya,

 

Look into isolation transformers.

 

Hum X

 

Very best,

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