Strange issue with MTX RTT8P sub

Hello all,


Since a few weeks the MTX RTT8P is randomly playing very soft but I cannot figure out what it is causing it.

It will play fine at some moment and the other moment almost all volume is gone.

Most of the time I can get it back up by setting the gain very high and then back into the original position.
The sub will play fine again for like 15 to 30 minutes before losing the volume again.



During all of this no protection light goes on nor does the power led go off so I'm really in the dark here.
Initially I thought it might be something with the audio source like the audio signal was gone but after testing from another source the same problem occurred.



Hopefully anyone has experienced something like this because I simply don't know where to look anymore.


Best regards,


Mob
 
It appears that I found the solution myself. I've sanded the part of my car's body where the ground is bolted on to a bit more. Looks like there was still too much paint around that area so it couldn't properly disperse the excess power but it was still enough to not activate the protection mode.