I am not sure where to start, but they took a number of queues from a few VERY durable, well established, high end amps. We were not going to throw something so expensive and risky out there that wasn't a dead on certainty that they will be reliable and perform. Benefits are long, as in how stout they are, the board design, the proven tech, the well done heat sink, the part choice, the foot print, the design, the durability, and so on. Yes, I know much of it is seeing these in person to see and feel how nice they are. When we debuted them at Slamology, the reaction was awesome. They are heavy for their size, that is due to the thick heat sink. Heat has not at all be an issue in extensive testing before production. I'm not saying you should change your IA amp, they are great also. These are simply an outstanding option in the higher end amplifier market (see our subs, our mids, our tweets, all high end pieces priced very well that people need to see them perform to see how good they are) and we have priced them very competitively, and they are under ratted.