Looks like I have exceptional range- I've often expected as much as I can usually notice sounds other people don't - on both ends of the spectrum. Looks (sounds?) like I can easily detect sounds down to half the normal human minimum frequency (I hear easily down to 10 Hz), with detection possible but attenuating rapidly after that. The tone generator didn't go any higher than 22k Hz but I can hear that fine as well. It's a miracle after all those raves!