The LT/1300 amp in my big dual 13 elemental designs sub died. There is a guy on the elemental designs thread that can try and repair the amp, but I also want to investigate a standalone amp solution. Something 1500-2500 watt range I guess, the other one was 1300 watts. I am thinking a fan wouldn't be too bad if it is quiet, there is a home theater computer in the room and it has a fan but really quiet. I am also thinking in retrospect that two or more subs with one driver is a better idea for future upgrades, the dual 13 is a hassle to move etc.