Reason #1: Most onboard EQ is very limited. Most preamps have shelving EQ. You turn the bass knob up and ALL the bass frequencies get louder. You turn it down and they ALL get quieter. Same goes for treble. I like to control exactly which groups of frequencies get louder/quieter and by how much. You could just say "why not bypass the EQ?" This may come as a surprise to some of you, but most active basses out there don't have bypass switches. Also, while you can just run them flat, you can't always do so very easily.
This may come as a surprise to you, but most EQ's on bass guitars are not the kind purpose built for tweaking exact frequencies. Sorry...but they're not. You'll never understand them if that's what you're trying to do with them or even WANT them to do. If you are die hard for tweaking an exact frequency get an outboard EQ that does what you want. There are a ton of 'em out there.
An example would be the "style sweeper" on the Ibanez 300 series soundgears. It either scoops the mids (pretty severely) when set to "slap", or, it boosts them slightly when set to "finger". In order to set it "flat", you have to turn the knob to about "3". Which brings me to my next point:
Sounds pretty easy to me. Put the knob on 3.
Reason #2: I, personally, do not ever use EQ knobs on a bass in an "inbetween" setting. Meaning, I either have them at 0/1 or 10.
Sounds like your cutting off your nose to spite your face. You hate onboard EQ, so you're gonna set it at the max range possible just so you don't bump them. And you like the sound of your bass with your knobs set at either 0 or 10?
Why? Because I don't want them to get moved when I've found the best spot for them.
So you do like them at 0 or 10!
Let's say I really liked my bass knob at about six.
I thought you liked 0 or 10?
Then I'm playing and my hand slips or I bump into something and the knob gets spun out of whack. I don't want that to happen!
So you'd rather have a bad tone than fix your technique? I can see why you wouldn't want that to happen too. Bad tone is way better than good technique.
So, I tend to just min/max with EQ knobs on the bass. Also, I don't want to have to remember exactly where to set the knob for it to sound the best.
Lesser men have commited 26 letters, 100 numbers, thousands of words, what time their favorite TV show comes on (and on what channel), what the web address of talkbass.com is, what the hell LOL OMG ROTFLMAO IMO FWIW means, how to tie shoe laces, and...hold on...righty tighty lefty loosey to memory. Yup you're right. There is no more room for what your knob settings are. And what about your amp settings? Or your pedal settings (if you use pedals...you may not)?
Or just duct tape them down.
Reason #3: They change the total output level of your bass. I run sound at my church and it's a pain when the guitar players switch pedals and their volume is different. It just makes mixing that much harder.
They should check the levels of each pedal during sound check. That's why most have an output control on them somwhere. Plus the clean and dirty channels of the amp. Or are they set it and forget guys too?
Wait a minute. Isn't that what a sound guy is being paid to do (or at least signed upto do)...monitor the sound and fix problems? So you wanna be a sound guy that shows up, does a sound check, and goes out for a smoke during the show?
I like my output level to be the same no matter what. At least from my bass itself. That's why I have my volume knob at 10 all of the time. I don't want my bass to suddenly be louder because I boosted the bass knob.
Um...your bass is not louder, but the frequencies YOU just BOOSTED are. But I thought you don't change EQ settings mid-song? I thought you use 0 or 10? Should be a non-issue, right? Or is it that crazy right hand technique where a flailing finger accidentally changes the bass knob from 0 to 10?
I don't mind if my "end sound", the sound heard by the audience, changes.
Would not a volume change constitute the sound heard by the audience, AKA: the "end sound"? Just as long as you don't hear the "end sound" change...
It's the signal level going to the rest of my equipment that I want to have remain constant.
Fair enough
Reason #4: It's just too complicated. I'm a set it and forget it kind of guy. I find one tone that I like and use it exclusively. Some people like the versatility. That's great for them, but not for me.
So set it flat, duct tape it in position and forget it. But maybe in the future you will think differently about EQ...especially if you ever play in more than one venue, your bass tone shifts slightly because it's been raining for two weeks straight, or you get a wild hair up you butt to try an "new" sound.
Give me a bass with one knob, I'm happy.
/end rant
Interestingly enough, I have a one knob bass for sale in the classifieds right now!!