Newbie-Doo said:
Are there any rules of thumb about sticking to a few types of eq? Seems like you could end up undoing what you did in a different EQ if you keep moving from one to another.
As far as "sticking to a few types of EQ", no, IMHO, it's pretty much let the music dictate what it needs.
In general I like to keep the amount of EQ to a minimum and typically don't like to have more signal processors (EQ, comp, verb, etc.) in the signal chain at one time than I need. This is a specific situation, however, that calls for liberal sound shaping in several parts of the spectrum. I'd still try to avoid extreme boosts or cuts unless absolutely called for, but as far as the number of EQs, that's up to what's needed I think.
I agree with cello_pudding that you aould probably get away with a single 4-band parametric per track, especially if the lower and upper bands had shelving options. However, if you're comfortable with your EQs and are fairly intimate with their individual colors or sounds, I'm all for picking the right tool for the right job. In other words, if you particularly like the sound of one particular EQ's high-pass or low shelf filter, but you have another paramteric EQ that seems to work best for notching in the midranges, then by all means, go ahead and use both EQs on the same track, each for it's own targeted job.
That said, though, I prefer to run them on individual tracks one EQ at a time. That is, I prefer not chaining them together as real-time effects, but rather running one over the track to address one issue first, then going back and applying the second EQ to address the second issue. This is really a matter of personal preference, I think; but I personally like the idea of letting one EQ add it's color first and then adapting the 2nd EQ to the new wavefrom, instead of simultaneously trying to tweak both in a real time chain. The real-time chain, it seems to me can wind up being a series of chinese boxes to a degree, tweak #1 and you'll be tempted to tweak #2, after which you'll be tempted to re-tweak #1, and so on. No need for that, IMHO.
G.