http://www.audiocheck.net/

[alpz]

This is kind of a neat set of tests to see the extent of your hearing/system.

So far I've learned that I have a hearing range of 20hz-20khz, with a 72db dynamic range.

I also learned that:
I can't hear the difference in phase inversions
I can hear a 10cent pitch change 9/10 times but a 5cent pitch change only 7/10 times
I have no idea which notes are which just by ear.
I have moderate hearing loss at 1000hz and mild hearing loss at 2000hz.

[Misanthr0py]

40hz - 16khz and 52db dynamic range