The equalizer should not be used for "enhancing bass" and such. The equalizer's purpose is to correct non-linear frequency response in audio hardware. If you do not understand what that is, please do not use the equalizer.
You have a point. But... An EQ built-in to a free media player will always be and sound shitty, or at least I have yet to see the exception. Regardless of what kind of frequency curve it emoploys, it will still ruin that nicely mastered recording.Download a VST wrapper (is there one?) and buy some lovely Voxengo EQs if you really need to compensate for your equipments response.
Btw: I don't use/need foobar's EQ to equalize for my headphones. I use foo_convolve with an impulse file which I generated from this curve as source (slightly modified) and this [a href="http://img247.imageshack.us/my.php?image=flatterqt9.png" target="_blank"]
Off topic, but I'm interested, how exactly did you generate the impulse file?
Download a VST wrapper (is there one?)