Clayton proves you can't quiet a curious mind. I saw the new webpage and thought, "oh shit, upgrades..." Having lived through the original M series upgrades, which were not inexpensive, I have to applaud Sockpit's sentiment about Clayton's continuing dedication to the M100 driver. And, it appears we lucked out for the time being with no upgrades. Not that I'm against upgrades at all. I applaud continuing R&D. Still, it's nice not to have to part with a chunk of dough having just completed the M3's break-in period. What a fabulous speaker!