They should re-do the test with recent PA amps from e.g. Crown or QSC. Those have now reached ridiculous levels of technological sophistication. They're light,

They should re-do the test with recent PA amps from e.g. Crown or QSC. Those have now reached ridiculous levels of technological sophistication. They're light, powerful, indestructible, and can carry any load you plug into them. And in a blind test with good speakers they will sound better than anything "high end". Oh and they're almost always under $1K, with brownout inducing 2KW+ units below $2K. If it's high fidelity sound reproduction you're after (rather than just "pleasant" coloration), today's upscale studio and live gear can't be beat IMO.