Question:
- If there is one measurement that would prove that speakers have indeed got better over the last 20 years, what would it be?
kenjit has unwittingly asked a trick question. The answer is no. There isn't one. The trick is, because there can't be. One measurement can only measure one aspect. But there are near infinite aspects. No one of them can do what he asks.
In fact, no amount of measurements can. Once again he's stuck chasing his own tail: Wants irrefutable measurements, but they still have to be voiced to his super refined hearing, even though you must prove it with measurements, which only he can approve, the measurements, with his super exquisite hearing, round and round and round we go, where we stop.... kidding! Never stops!