If it's set to mono (default) both channels sound great with curve selected but if you set to stereo only left (default) uses the curve right is still flat and there is no both option. So in order to stereo i have to either create a curve for each channel separately or create it for left save it and than export to right one. Right or using mono setting is correct way? I already thought about renaming mono/stereo mode (maybe to single/dual?) because somebody could be confused. Mono mode means that each channel of your audio tracks is processed with the same EQ curve, so yeah, it's the right way to do it. Stereo mode is for those who want to equalize the left/right channel independently. Stereo mode only works with 2-channel (stereo) tracks. Mono mode on the other hand works with any number of channels (your tracks can be mono, stereo, 5.1, 7.1 and so on).Also to achieve noticeable results i have to draw it adjusting slider by slider doesn't work for me but unfortunately i'm bad drawer but after spending over 15 minutes was able to achieve result i'm enjoying but interested to know if anybody could share correct curve for Sennheier HD650 headphones Drawing the sliders is just a quick way to set up a smiley curve for example but it's also a nice way to get a feeling for how (big) changes are going to sound. Btw, you can also adjust the sliders with the keyboard (tab for next slider, shift+tab for previous slider, up/down arrows keys for +-0.1 dB and page up/down for +-1 dB). edit: v0.3.6 released. As requested, I added a View menu entry to open the EQ. (I know, the window is modal at the moment.) Thanks to kode54.