Audio Systems: Bass Distortion, volkswagen jetta, voice coils

Question
I have a 06 Volkswagen Jetta & the bass is Always distorted. I have to turn the bass all the way to zero if I want to get rid of the distortion and even then some bass heavy songs will Still Distort!!! Its horrible sounding, I Hate it & I want it to Stop!!! Any advice??

Answer
There are several possibilities.  Perhaps the problem you face is that of the most common cause - loose voice coils.  

This happens when the speakers are over powered for a long period of time and the coils come unglued from the coil form due to overheating of the bonding cements.  Then, the coil is moving but it is sliding on the coil form and causing the distorition sound.  

Another possibility is the surrounds attached to the cones has deteriorated and causing the cones to come detached.

In both cases either repair of the speakers or replacement is the proper cure.

Let me know if you need further advice; but give the the make and model of the speakers. If they are the original VW speakers, I would say just replace them.

Cleggsan