Hi all

Ive been having an issue with a sub. It was working great for about 2 weeks. It is rated at 350 watts rms and Ive been sending it about 300 watts. Its in the manufacturer specified box and is dual 2 ohm voice coil. I noticed an odd "plucking" sound coming from the woofer during bass beats. I thought at once that it was a tinsel lead touching the back of the cone. After removing the sub, I noticed that the tinsel leads are sewn onto the spider, so thats not it.

So after reinstalling the sub and playing it for a bit, I also noticed that if I gently place a finger on the surround, the sub would cut out. After lifting my finger, the sub would continue to play.

I measured the impedance of the 2 coils and noticed one had risen slightly.

So, car audio gurus... what could be the problem?

 

Seriously.. nobody has any idea on this?

 

sub was most likely misaligned from the factory. the coil is rubbing on the pole piece and shorting

 

DEFFECTIVE, got a receipt :P

 

I do. should probably send it back

 

from the sound of it i deff would, sooner then later