Is it me or my sub? Just keeps popping and rumbling...

[Contentt]

I've had my M&K sub - MS-125 II for about 10 years and for a while now it pops when it can't seem to handle the base, and it also rumbles uncontrollably whenever I try to adjust the nobs. Trying to figure out what's wrong, or if I just have the settings wrong.

I've plugged it into the same outlet as my other components as someone suggested that might help.

I have the low pass filter is on bypass and set to 125 based on suggestion. The bass level is set to -3dB.

How do I know if this sub is ready to retire or if I just need a fix?

Thanks.

 

[highfigh]

Look at the foam area around the cone- it's probably missing a lot of it. It can be repaired, though. If the woofer is on the face of the box, make sure it hasn't been making scraping sounds for a long time. That can damage the voice coil and cause shorts, which can take out the amp if it bypasses enough of the coil.

 

[KEW]

Also, push the cone. It should translate smoothly. If it does, the surround as mentioned by highfigh should take care of you.
If there is the sense of rubbing/scraping, you are in the market for a new sub!