Emu XL-7 & MP-7 User's Group

where do these things come from and how much are they?
 
you're talking about a circuit that recognizes noise more or less and flips the phase essentially cancelling it right?  
 
have you also tried using a direct box and 'lifting' the ground?
 
Ground hum sucks.  not to mention, they say somewhere between 1 in 5 or 1 in 10 outlets is wired improperly.  apparently black, which is usually ground, on a normal US outlet is hot, white is neutral, and green is ground.  so naturally people can get confused.  

If anyone has a killer ground hum that you just can't shake it's possible your building isnt' grounded properly.  You can check behind that plate on your circuit breaker, there should be an actual wire there.  I've heard of homes not having them.  Also, sometimes they don't bury the grounding rod as deep as they should.  I forget how deep it's supposed to go.  
 
Peace,
 
WEsley


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