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Dirty power wrecking the sound...
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<blockquote data-quote="Ivan Beaver" data-source="post: 98961" data-attributes="member: 30"><p>Re: Dirty power wrecking the sound...</p><p></p><p>Could it be that the hum is actually coming FROM the mixer? ie a bad filter cap?</p><p></p><p>I highly doubt it is "dirty power"-although people just LOVE to blame it on the power.</p><p></p><p>It could be a grounding issue (pin 1 or similar) on some piece(s) of gear.</p><p></p><p>Unbalanced connections can be a real pain-you have to unplug (signal wise-not power) EVERYTHING-and then start to hook it up and see when the hum returns.</p><p></p><p>THEN start to narrow it down. It could be coming from the "transmitting end" or by hooking up the "antenna" (signal cable) to the "receiver".</p><p></p><p>Adding a mixer is simply going to amplify the noise-not reduce it. Once it is in the system-anything that has gain is going to make it worse.</p><p></p><p>Is there any other audio gear in the place that does not have the noise? If so-then it is not the power.</p><p></p><p>To be honest-I don't think I have ever seen a situation in which the power was actually the problem-but was always blamed.</p><p></p><p>So I suspect internal device issues or input/output grounding issues.</p></blockquote><p></p>
[QUOTE="Ivan Beaver, post: 98961, member: 30"] Re: Dirty power wrecking the sound... Could it be that the hum is actually coming FROM the mixer? ie a bad filter cap? I highly doubt it is "dirty power"-although people just LOVE to blame it on the power. It could be a grounding issue (pin 1 or similar) on some piece(s) of gear. Unbalanced connections can be a real pain-you have to unplug (signal wise-not power) EVERYTHING-and then start to hook it up and see when the hum returns. THEN start to narrow it down. It could be coming from the "transmitting end" or by hooking up the "antenna" (signal cable) to the "receiver". Adding a mixer is simply going to amplify the noise-not reduce it. Once it is in the system-anything that has gain is going to make it worse. Is there any other audio gear in the place that does not have the noise? If so-then it is not the power. To be honest-I don't think I have ever seen a situation in which the power was actually the problem-but was always blamed. So I suspect internal device issues or input/output grounding issues. [/QUOTE]
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