Checked it out + did some www research - and you're totally right, thanx! now it starts to sound really well!
The only difference with what you've suggested is to boost pre-amp parameter after this kind of "negative" equlisation to compensate weaker signal.
If anyone wants to check it out on their own, here's one of the coolest ets i've found (for 10-band eq, it goes from bass to trebles):
"-8, -5, -2, -4, -5, -6, -4, -2, 0, -3, then just boost the overall gain at the left to make up the difference"
Only thing I've changed was giving some more bass. Pre-amp set to +6.
Of course keanex is right and it all depends on your audio system/headphones, but just give it a try and see the difference:)