#1
what is e.q.? what does it stand for and what does it mean? i hear a lot about "e.q.ing" and stuff like that, but i dont know what it means.
#2
equalizing. as in equalizing your amp or pedal settings, like messing with your highs and lows and mids.
#3
It's just a way of setting the level of different frequencies in your intruemnts sound. Eg. The highs, mids and lows. Different settings can give you very different sounds.