This is a first for me, having owned numerous bass cabinets over the years. At a gig Friday night, I smell the dreaded cooked electronics wafting from either my PA or my mini rig.
At first I noticed the smell and the loss of stage volume... I step out and the mains are still working, yet I have nothing coming from the 2 10" drivers, they are not moving at all, and the rest of the band notices too.
I thought great I smoked my amp
The DI was still working, so I dialed in a little bass in our monitors and we managed to finish the gig without even a hiccup. We pack up our equipment and head home. We have a gig Saturday and I decide to just buy a Sansamp, and just run in the monitor mix again. Off to GC I trot, and they have a Sansamp Programmable Tri-AC used. Digging the sound sculpting this does...and at $119 I am happy to add it to the family.
I head home and pull my cabinet out of the back of my SUV, and I hear this clunk...clunk...inside the cabinet. Take it into my office and take of the grill and one of the drivers. I pop the driver out of the hole and am surprised at how light it is.
It was so light because the magnet was missing and the voice coil is FRIED completely. That is what I was smelling. After a couple of what the heck moments, I loosen the other driver, pop it out and... it too is FRIED, but the magnet is stuck to the frame. Apparently MB in their infinite bass wisdom, only glues the magnets onto the speaker frames.
Now get this, there is only 1 magnet inside the cabinet. I also recognize this magnet as the same thing I had found in the back of my car and could not figure out what it was. That was 10 months ago or so. My drummer remembers handing it to me and asking me what it was at a gig. I thought it was something that was part of my seats (the lumbar quit, so I chalked it up as mysterious car part.)
So, apparently I have been playing through a single 10 for almost a year and had no idea.
Finally, there is a bright side to this. After talking to VST service, the unit is still under warranty and I can drop the cabinet off at a service center about 15 miles away.
Take a look