I guess I am curious about all these graphs and things, but I am listening to mine right now and they are really kicking ass. I am actually using the Moth 300B speaker amp with banana plus to XLR adapter. I was trying the AKG K340s that came with the adapter and they sound like pathetic hollow images in comparison. The HD800s are not a dead-bang sure thing best cans in the world, but they can sound simply fantastic. This aint a bad way to power them, I must say. Listening to Bob Mould and Christian McBride's new albums and I gotta say it is good shit. Sitting on my porch in Mayberry with a beer by my side doesn't hurt, either, of course.