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Plus/2 volume control problem - scratchy

2K views 8 replies 7 participants last post by  coffeeman 
#1 ·
Hey everyone. My PB12 Plus /2 sub which I've had for about a month now has a problem. I just noticed today when I went to turn the volume down in the back of the sub that a low but audible scratchy sound comes from the woofers. At first I thought I was hearing things so I continued to just turn the volume knob up and down fully and sure enough, a scratchy sound every time the knob was being adjusted. This doesn't happen unless the volume knob is being adjusted, left alone and the sub performs as expected :dontknow:. It's not that loud, but with nothing playing, I can easily hear it; should I be worried about this? I'm not one to be adjusting the volume much on the sub but I don't want to run into any problems down the road.

Thanks in advance.

Jim
 
#2 ·
This is called a noisy pot. We screen for them at the factory, but sometimes they develop over time with dust/humidity getting into the control. It won't hurt the performance of the subwoofer and as you noted it only occurs when the gain control is moved - which is very rare after the subwoofer is calibrated. If it bothers you, we can certainly replace the amp - just contact me at tech support. Thanks Jim.
 
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