Hi guys. I use fl studio to produce and I have a question related to parametriq eq 2 that im guessing it applies to most eqs. Some times when I cut low frequencies, the volume of my sound goes up, and sometimes it goes down (how it should be i guess). So my question is, why does the volume goes up if im cutting frequencies? I dont hear it goes louder but in the mixer the volume goes up like 3 or 4 db sometimes when im cutting the lows of a sound for example.

I'm guessing you're eqing a compressed sample. In that case, the peak volume goes up, but the RMS volume is still going down (if you're only cutting). So the loudest parts of the track will be a little louder, but since the average volume is less, it'll sound quieter to a listener.

idk if its compressed, it is happening with a vengeance loop file.

It depends on how steep a cutoff you're using, as well as your Q. An aggressive cutoff (I'd probably consider 24 dB pretty aggressive), will create a huge phase shift at your cutoff point and can actually create quite the boost in volume. If you're insistent on using an aggressive cutoff, either set a fairly low Q or use a linear phase EQ if possible.