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Hi:
Since i bought my zap machine a buzz sound always is running when its on the green light and when i switch to the red channel it gets louder
i live in beirut lebanon someone told me that this problem is cause in our area we don't have the middle ground jack
please let me know what i can do to fix it
note: i tried many 9v adapter and all gave the same result

Sounds like grounding hum. They make a adapter for that kind of thing I believe.

I'm getting a gator brick power supply do you think it will do the job ?

http://www.musiciansfriend.com/accessor ... wer-supply

You should drop this in the EQD thread proper, Jamie is a super helpful dude who will definitely help you get it sorted