The following settings produce a problem for only one of my sound files.
Set 16000 to 9000. Set the range to be +/-100dB. Set 9000hz to -100dB
It sounds as if all the other sliders are set the same as the last one.
I like these settings because it zeros the higher frequencies.
By the way how does the equalizer work? is it like this:
1: first slider sets its frequency and lower
2: next sliders sets its frequency to the one previous
3: last slider sets above and all frequencies higher