| Tobias Growler mid-ninties
Hey, as far as I can tell you, I have been on the same hunt for a year now. The switches are bottom-normal, middle-mid-boost, top-bass-boost. That I got from a 1996 copy of Bass Player. You've really got to play around with every setting on that bass. I just stuck with what I liked the best. You can get this really thin tone like a cool Jaco tone by panning your p/u just a slight bit to the bridge side, leave both switches down, the bass on both concentric potentiometers pretty high and the treble heavier on the bridge and the treble just above unity at the neck side of the house. Then, pop the neck switch to the top and it's great for slap. Then I use the bridge to the top and the neck to the bottom with the switches to harmonically tune. Basically, all of what I do is with the total of fifteen total possible switch combinations. I spent about a week doing this. Other than that, I am awaiting information from Gibson.com, I had read somewhere that they can provide history about Gibson made Tobias. While I have heard good and bad things about this bass, it is so easy to get the most of this bass. I have been using mine for a year now and I use it all of the time to do so many different styles. Right now, I am trying to find the exact electronics so I can find out what the four potentiometers on the back can be set to (what freqs) just out of curiosity. I have an 18V preamp as well. Just one quad-coil, and the standard knob config. What I also want to try to do is take an old pot (25K) and figure a pre-amp bypass for this thing. I came across a bartolini wiring diagram somewhere that explained how to do it. I've just got to get back to it since I just decided to do this today since I now have a left over pot from another bass mod, a coil-tap on my jazz bass. | 
