I am sure you have learned lots about acoustics and speaker placement, and you find this video enlightening. In this context you are wise and learned. Good on you. However, the way you interact on this forum demonstrates ignorance. Notice I didn't use the term stupidity. You are so often in a dither. Have you thought about this? I am not here to attack you and hope you don't take it as such, but in so many of these threads you seem to be upset, and are on what feels like a counter attack or a defensive posture. An armchair shrink might think you have a persecution complex or are seriously insecure. Maybe you simply can't accept criticism or you actually enjoy arguing. I don't know the answer, but maybe you can look inside yourself and find one. I'm pretty sure you will again get bent and will respond to me in a likewise manner. But if you must, be my guest. I will say this, your constant bickering is quite distracting and saps positive energy from a discussion. For the good of everyone, yourself included, would you be willing to work on containing and curtailing your reactions? I hope you interpret my message as a positive attempt to make things better. Thank you.