Jude, where are you physically? Detroit? Sea level, essentially? And Tyll is Montana? Whoa. Does anybody here know if elevation/air pressure affects audio measurements? It affects car performance, it affects baseball players, and it sure makes me gassed when I hit the Rockies. I assume higher elevations would result in exaggerated results/graphs. AND . . . I assume that, subjectively, all traits of a headphone, both good and bad, would be to the extreme at higher elevations. And finally, I assume that most headphones, including Sonys, are designed and tested at closer to sea level elevations.