slowmotion
New member
Hi Guys
I'm just wondering what determines the width of an EQ band. In my desk (an old live girl), my EQ is at 150hz, 2.2khz and 8khz, +/- 15db. Behold the schematic:
If someone could talk me through this. I know the bigger value caps are for the bass side and the tiny ones are the treble; so fiddling these values will move around the frequency (that said I'm not really down with the relationship between the two caps, but still)...
My question is, I guess, what determines the Q or the width of the notch/boost? If it's the 10k or 220k resistors, could I replace these with pots and have a kinda semi parametric Q thing going on? For that matter, if I replaced the caps with adjustable caps, could I sweep it...?
I've tried reading many an article but it's hurting my brain and I just need someone to spell it out a bit easier using what I see above if possible? Any help much appreciated!
I'm just wondering what determines the width of an EQ band. In my desk (an old live girl), my EQ is at 150hz, 2.2khz and 8khz, +/- 15db. Behold the schematic:
If someone could talk me through this. I know the bigger value caps are for the bass side and the tiny ones are the treble; so fiddling these values will move around the frequency (that said I'm not really down with the relationship between the two caps, but still)...
My question is, I guess, what determines the Q or the width of the notch/boost? If it's the 10k or 220k resistors, could I replace these with pots and have a kinda semi parametric Q thing going on? For that matter, if I replaced the caps with adjustable caps, could I sweep it...?
I've tried reading many an article but it's hurting my brain and I just need someone to spell it out a bit easier using what I see above if possible? Any help much appreciated!