I see people having problems with these amps and there is no way that I'm about to believe Sundown has a perfect testing procedure. Most people know what electrical is required for these type of amps. Why spend your money just to starve the amp so it can blow up on you? It can't be user error every time. Taramps have similar reviews about there amps going into protect. I'm sure this guy has a clue if he spent money on a Cyber 6k. I was going to get a sfb, but the reviews have me on the fence.