I found a old (10+) 12"XTR 1600w (800wRMS) sub that has a broken ?foam surround? (if that is what it is called) and i cant find any information/reviews/specs on it. Its $25 to repair and dont know if it is worth it since i already have 2 new 12" XTR. DOes it hit harder or cleaner then the new XTR models?