Friends, I just read an interesting comment in Stereophile by William Z. Johnson, designer and founder of Audio Research, where he comments on why audio is so difficult to scientifically measure. He says: "hi-fi is one of the few industries where products are measured one way and used in another way...Every measurement that we're aware of falls into the realm of what we call repititive, or static, measurement. In the real world, the simplest musical signal has component signals one ten-thousandth the size of some of the other signals present, and at many, many frequencies at once. It simply defies the abilities of static circuitry measurement." This IMHO gets to the point that it is very difficult to apply even wonderful modern scientific techniques to describe audio phenomena. In many discussions here on the board we often fall on two sides of this coin. Those who don't believe you can measure everything and those who do. I am curious...what do you believe?