This past weekend my two rev 8 tower speakers powered by kicker kx 400.4 amp started popping and would cut in and out. I checked the amp and it would flash on for a few seconds before turning off. Not clear if it was going into protect mode but I think it was. Ive had my current amp/speaker set up for several months without any issues with overheating or cutting out. Gain was adjusted following kicker recommendation. I checked all the connections and there were no loose wires from speakers, power, or ground. Speakers are relatively new and I have no reason to suspect any problems. My other 400.4 amp that is connected to the same power and ground had no issues and continued to work fine with boat speakers and subs. I tried to play it safe and disconnected the amp while I was out of the water for the rest of the day. Does anyone have any advice for me as I start my trouble shooting process tonight?