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In the Forum: Audio Discussions
In the Thread: It’s mad, mad, mad... electricity.
Post Subject: That is very normal!Posted by Romy the Cat on: 2/20/2009
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 drdna wrote:
I am quite sure it is a ground issue, as it is noise coming from the loudspeakers regardless of source or volume. Lifting the grounds on the amplifiers… eliminates the problem.
If it so them there is no need to contact the company about it as it is not their problem. The ground loops are normal and lifting the grounds on the amplifiers is very normal, particularly with high sensitivity acoustic systems. Do not forget that PP2000 does nothing to ground wire – it is just shorted from input to output, so whatever problem you have with ground loops before PP2000 you might have the same after. Lifting the ground from the amplifiers of from whatever is necessary is very normal way to do, particularly in non-balanced systems. My Melquiades has the middle wire from the power cord not even connected to amp ground. Are you kindling me? If you run a single-ended design then your negative bass terminal supplies elections directly to cathodes of your tubes. So, are you willing to put the grid’s ground to the chassis of your amps? The grid’s ground is not only dirty – it is dangers and you can not only pick noise from it but you can get pregnant from it. So, if you USE the grid’s ground then you just incredibly lucky…

The Cat

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