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Mackie 450 crackles when the cable in plugged into the XLR. Cables have been swapped several times so that is not the problem. Would like some advice?

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Its a little tricky to get at anything with these, but there are a couple of possibilities:

1) Poor connections at the connector itself (not likely)
2) Dirty/defective controls (more likely)

I have changed many of these controls. A quick test is to work the controls back and forth with the unit off. Turn it on and try carefully to adjust the volume knobs. If they are the problem, you should hear some crackling while adjusting them. Sometimes working them will clear it up for a while.

These parts can be replaced relatively cheaply. Figure on $5-$10 for parts.


Posted on Aug 25, 2010


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