I like this one and, I thinkit's going to be interesting to see how it goes over as I know there are a lot of folks out there who are really hung up on this stuff, especially the distortion measurements.
funny thing about moving the mic closer to get a more accurate reading/measurement of the distortion is that by moving the mic closer, one is dramatically reducing the power output needed to maintain a consistent SPL of any given number (say 90 db). by cutting the measuring distance in half, you'd gain 6 db. To maintain 90 db only 1/4 of the original power ( assuming my math is correct :LOL: ) would be needed and reduce the workload on the driver and lower the distortion anyway.
Going even further, I think most of the time these measurements would be attempted at 1m or less which wouldn't require much power to reach 90db. If say you had the anechoic chamber, would it not make much more sense to do any such measurement at a more realalistic listening distance to put a more realistic workload on the driver ?
jay
