qhat frequencies can you here your monitors produce

[Capoeira]

i was searching for a frequency-test in the net and i found these: http://www.jimmyr.com/blog/hearingloss.html

now this is strange as i can here all of them, but some of them seem lower then the supposed to be. is this because of my playback device?
i am hearing thru sennheiser head-phones here.

[Capoeira]

anotherone - this one is meant for testing monitors; very goode the last one (sweep): http://www.suntune.de/soundcheck/

[Capoeira]

oohhh, found out that its possible to create sinus-tones in Audacity, didn't know that - however after 15000Hz the tone isn't pure anymore, there is the high one and some lower

[DioXide]

some of them seem lower then the supposed to be

Remember that your ears don't have flat frequency response

If your sound system was perfect, what you'd hear would roughly (very roughly) match this curve: http://personal.cityu.edu.hk/~bsapplec/frequenc.htm