1994 Tobias Basic Preamp

[gbarcus]

I recently acquired a 1994 Tobias Basic 6 string bass.
When I first bought it, it was wired wrong and the bass/mid/treble did nothing when I turned the knobs...
Had a local shop rewire it (had to get the Bartoloni HR-MT5 preamp diagram from Gibson myself).
Now that it is wired correctly, the 3 band eq changes the tone when you turn the knobs, but not by much; especially the mid.
Is this typical of this type of this preamp?
it has a mid pot labeled W50K (diagram says CD50KM). Assuming that this is the same value and just a part number difference, is there a pot that will give me a wider range?
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[gbarcus]

Here are some pictures. I had a little fun and made a purpleheart cover on the back.
Neck is Maple & Purpleheart, Wings are Lacewood and the fretboard is Pau Ferro.

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[abarson]

As far a I know, CD stands for "center detent", meaning that you will feel a "click" when you hit the mid-point. This means that the mids are flat at center, boosted in one direction and cut in the other.
Your technician may not have been aware of this, and installed a regular potentiometer, which would not have the same effect.
Beautiful bass, and glad to see you're bringing it back to its former glory!!!

 

[wysiwyg248]

gbarcus,
You should try contacting Mike Tobias himself, I am sure he will assist you personally or via e-mail.
Nice axe, BTW!

 

[stanknuckle]

I think you should get rid of that bass. You're clearly not happy with it. Let me know how much please