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I bought my SP415 dual 2 ohm back in October and received it in November and after only 5 months of use, the foam surround is ripped. I can't seem to figure out how this could have happened so any input would be great. Also curious if this is covered by FI's warranty. But here's the setup: -1999 Grand Prix GT Sedan -FI SP415 dual 2 ohm wired to 1 ohm. No spaced spider and no cooling (daily use, didn't see the need) -AQ2200d tuned to 2100 watts RMS using a multimeter -DIYMA oversized 0awg CCA power (appx. 22') and ground (3') with a 200 amp circuit breaker near the battery -Optima Yellow Top -Ohio Generators HO Alt (its an older model but I had them test it and it puts out a minimum of 165 amps and max of 234 amps, and with a smaller pulley it idles at about 200 amps) -Box is appx 4.02 usable cubic feet (after displacement) with sub mounted up and 6" Aeroport entering the cabin -Polk PA660 powering (2) 5.25 Alpine Type S and (2) 6x9 Alpine Type S The electrical is all solid and nothing was rubbing on the sub so how could this happen? The only thing that I could think of is if there were some goofy pressures in the box that were created..but any help is much appreciated.