sasoolo,
That is not good progress for the audio world. Just throwing a bunch of random cones together and using a ridiculous amount of power amps daisy chained...that is not progress. Progress would be engineering something that sounds just as good as all that, at 1/2 the size and power rating. 31,000 watts? Are you kidding? Most large rock groups don't use anywhere near that kind of power. This was the project of some engineer who was given unlimited money and resources, and just schlepped a ton of crap in one box. The design doesn't even look optimal (speaker placement, angle, etc.).