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Considerations for more knobs than available holes

How should I configure this humbucker/p combo?


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Yes, for my next bass I'm planning the ever-popular "add the mm to a p" setup.
I'm just in the early stages of deciding what I want, but I'm planning on a P body, J neck, and a humbucker/p-bass. I'm not planning to use a PJ body, since I want the humbucker farther from the bridge than the usual J pickup.

As with most people doing this kind of thing, I'm just curious about options for the knobs. Obviously, if I stick with the classic P guard, I'm one hole short for the typical volume, volume, tone, jack arrangement. I'm just weighing some options.

I'd also be interested in hearing any personal experience of loving/hating any of the options.

In no particular order:
  • Stacked pots, one pot per pickup-- Have one stack run the humbucker (volume and tone) and the other the P (volume and sound).
  • Stacked volumes, one tone pot-- Stack the volume pots so the inner runs the P and the outer runs the humbucker. The second knob is just overall tone.
  • Use a pj pickguard and route extra out of the body to fit it-- I'm not sure how much extra space is required on the body or how close the fit is. It's not my first choice simply because I have so many unknowns about how much I'd need to modify for it.
  • Just ignore the tone pot entirely (like a Joe Dart or Mark Hoppus bass)-- originally I wasn't even going to consider this, but the more I think about it, I almost always leave my tone all the way open and eq through pedals and amp. Very rarely do I end up adjusting the brightness at the bass level anyway, so I'm interested. However, I'm worried the humbucker may get a little wild without any tone control.
  • Use a regular p pickguard and add a side jack-- I'm pretty ambivalent about this option. I think I'd prefer to have the jack on the guard, but I don't hate the idea of a side mount
  • Other options I'm not considering-- Do you have a better option that I'm forgetting?
 
Fender's Precision-body PJs have three knobs and a top-mount jack. I'm not sure why you feel limited in this respect.

If you're building the body from scratch you could also have a rear-entry control cavity and mount the controls directly in the top wood. Then you don't have to worry about the pickguard.
 
I think two stacked pots and a top-mount jack would be the way to go; but...

You could go crazy, put in three toggle switches and a top-mount output jack:
  • Three-way toggle - P/Both/MM
  • Two-way toggle - Series/Parallel (when in Both Mode)
  • Two-way toggle - Split the MM
No volume (get yourself a volume pedal) or tone, just straight full output to the jack...! ;^p
 
IMG_9864.jpeg

Side jack. No routing. Just a 3/4 hole.
 
I really like having a good passive tone circuit – but I don't need one for each pickup.
It doesn't work the way you want it to anyway... unless the pickups are isolated by buffers the tone pots are going to affect both pickups. There's potential for some interesting sounds that way but it's kind of unpredictable.

And if the pickups are isolated you effectively have an active bass and may as well use a proper EQ instead of tone pots.
 
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Have you considered switches? 3-way Blade or Toggle close to the P pickup, Master Vol, Master Tone, and Jack at the last hole. À la Tony Franklin:
1762814194918.png


Or, Stacked Master Vol-Tone, Toggle Switch where the Tone is, and Jack. No need to modify pickguard.

Orrrrr custom pickguard shape to add more knobs to avoid Stacking?, I found this a year ago and i really like it, kind of rickenbacker-esque, and allows for many different knob/switch configurations.
1762814143769.png
 
Have you considered switches? 3-way Blade or Toggle close to the P pickup, Master Vol, Master Tone, and Jack at the last hole. À la Tony Franklin:
I hadn't really considered it. When I had a strat, I wasn't a huge fan of using the switch selector (not only because I'd occassionally bump it, but because sometimes I felt sometimes I wasn't really getting the balance I wanted). It's a great suggestion, but probably not a good fit for me. I was a much bigger fan of being able to independently control volume like on my J bass.
 
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