I've had my subs for 2 years now (2 12inch kicker comps with a boss audio r1100m amp) and I've never had an issue with them but the past couple of months they have been cutting out randomly and coming back randomly. My ground is good, positive wire and fuse is good, signal wire is good, connections all good and tight, subs tested good, no voltage drop. I don't know what else to check. The amp doesn't go into protection mode or turn off. The sound just stops but I can feel my subs still moving like as if the volume was extremely low. I even swapped amps and I was still having the same issue. I did disconnect one of my rca cables and when I would tap the tip of the rca on the connection they would start working for a short time. I'm out of ideas. Could it be bad rca cables?