Just an FYI, the typical hearing range for humans is 20-20,000 Hz, and the sounds in recorded music staying away from the extremes. Advertising range extending to 25k or even 35k Hz is nothing more than a sham.
Grado's increasing the frequency range as you move up their line...total sham advertising. The GS1000 frequency range is perfect for a dog, not humans.
Perhaps you should take a look at the frequency response of the Qualia 010 and let us all know what you think of Sony?