Well, we are sitting here with the manufacturer not providing any of that for us. So if we want to ask for things, the question should be first aimed at them. Your question on noise floor and calibration was addressed in the last post: I am showing comparative measurements. Any drift in measuring equipment is factored out as a result. Take a look at stereophile measurements performed by John Atkinson. You will see similar approach to mine. Longer term I do plan on writing a tutorial on these measurements and equipment in use.