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subwoofer distortion

I have a Talon Roc 2002 subwoofer.  It’s a beast w/ 2 12" drivers @125 lbs w/ a 1000w Bash plate amp.  For the last 10 years, it hasn’t distorted - until now.  What’s changed is cleaner power and better cabling throughout the system.  With a double bass or electric bass guitar, there’s no distortion.  With pounding kettledrums or an electronic synthesizer that goes subterranean, the sub breaks up.  Will the distortion damage the drivers?  Is this a design flaw?  Any solutions? Thx.
steakster

Showing 2 responses by timlub

timlub
2,038 posts
 
Sorry,  Mis quoted myself... " In Every Case, when you put a woofer in its optimal tuned ported box, that woofers optimally tuned sealed box will be smaller" 
timlub
2,038 posts
 
Excursion limits is most likely the issue, it could certainly be amplifier clipping... These big peaks suck huge power.  You may consider dropping gain a bit to the sub if your system will tolerate it. 
Overall, I would not seal the box.  You would dramatically change the bottom end frequency roll off and the woofer would be probably be in too large of a box for sealed design... I say probably, not definitely. 
In every case, when you put a woofer in its optimal and perfectly tuned sealed box... that woofers optimal perfectly tuned sealed box will be a smaller box, the perfect thought of QTC of .707 would drop in a larger sealed box,  BUT, you can easily tune a woofer for good performance in smaller boxes and frequencies can be permanently eq'd in built in amps... So "Probably"... The good news is that trying it is free, it won't hurt the woofer to try it.
I hope this helps,
Tim
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