Question about Behringer Ucg102 Guitar To USB Interface

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I just purchased the UCG102, and connected the output on it to my guitar amp. The result is an extremely loud buzz sound that doesn't allow me to hear anything else. I'm using a lapop, USB from the UCG102 is in my laptop, guitar in the INPUT for the UCG102, and output to the amp. Why is this happening?

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It is happening because you have a ground loop. You need to check the ground on your amp. If it is an old one that does NOT have a three wire cord, you need to have that changed. Failure to do so could also damage the interface. ALL your equipment, computer and guitar am should be powered from the same receptacle. If you have other devices connected to your laptip such as printer, they too MUST connect to the same receptacle or plug strip. Any phone lines should be disconnected from the laptop. Make sure everything has three wire cords. The interface probably sends out line level, so you should use a low gain input of the amp and use very little gain as the interface probably has 20 or more Db output than a guitar.

Posted on Mar 18, 2011

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