The speech was most impressive. I had to chuckle a couple of times, as it almost seemed Bruno had read the Class D vs. the rest thread here some time back. He brought up all the challenges associated with Class D design, and addresssed them in an elegant manner.
What I really found fascinating was his answers to the challenges to Class D design. He basically stated that the “off the shelf” components were not of sufficient tolerances to achieve the desired results and measurements he was after, so he had had them made to order. It was also very interesting about his comments regarding placement of components to obtain optimum performance. Something off as little as a few millimeters can make the difference between excellent or poor performance. I also applaud his approach to measurements, as it seems he looked at a lot of other parameters besides the basic ones the reviewers all flog us with. Very interesting stuff, to say the least.
His lecture has piqued my interest in getting a pair of Ncores to listen to. A couple of thoughts also come to mind:
1. Given how much research he puts into his designs, one would think that tweaking or modifying the basic amp would result in degradation, not an improvement.
2. With the tight tolerances, I wonder if the amp will maintain optimum performance as the unit ages (especially the caps).
