Thanks for bringing the A-10 to the Colorado Meet last weekend!
Here is my MINI-REVIEW:
It sounded great, and I liked the extra couple of dB of headroom/power that your amp gave with Stax O2 Mk1 vs my maxed GES. Ray, you are right though, why does anyone need to listen that loud anyways? I was also impressed with how well it converted single ended into balanced, which means not needing a balanced source to get nice sound. It also seemed pretty solid and well built, and sounded good with your HE90, my HE60, and Lambda 404 Limited Anniversary Edition as well.