So I have a Skar SDR-1X12D2 in a loaded enclosure hooked up to a RP-800.1D using the Skar 4 Gauge amp kit, with a 100amp in-line Fuse. I played it for about 30 minutes, gain turned all the way down, no LPF, no Subsonic or Bass EQ, and bass knob about a quarter of a turn (havent gotten it tuned yet). The sub stopped playing, and amp still had power. After a couple of hours I disconnected my battery, unhooked the amp and opened it up to see if it was messed up, looked fine so I put the cover back on and went and hooked it up again. Went to connect my battery again, and the fuse popped. I have a proper ground on my amp, Stainless Selftapper on an unpainted surface, close to a weld, with good metal. I wasnt playing music loud, about my normal volume, with just slightly more bass than usual. I do not know what happened. I'm going to get a new fuse, and put it in, and then see if the sub will play, I'm really concerned that the amp is done for, the sub feels fine. All wires were still connected well, I checked them after the sub stopped playing. Any help would be greatly appreciated.