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Choosing Pickups and wiring questions

Hi all,

I have recently gotten a 3/4 SX p bass and wanted to modify it to have a Mudbucker in the neck and one more Humbucker at the bridge making it into a Mudbucker - P - Humbucker bass and i am targeting to wire it in a v/v/v/t configuration and maybe series, humbucker and split coils switch for the buckers.

1. What mudbucker and humbucker will you guys recommend?
2. Is there any phase issues or mismatching issue or other issues for these pickup configuration and wiring?
 
Phase issues can almost always be solved by reversing polarity on pickups or coils.

No serious issues with that combination, other than the impedance mismatch you'll have between the mudbucker and other pickups, assuming you use a traditional mudbucker with it's prerequisite very high turn count. If you are only going to solo the pickups you'll be fine. But if you are planning on blending the mudbucker with the others, be ready for a frustrating experience.
 
This is the wiring diagram i was thinking about, does it make sense?
 

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Phase issues can almost always be solved by reversing polarity on pickups or coils.

No serious issues with that combination, other than the impedance mismatch you'll have between the mudbucker and other pickups, assuming you use a traditional mudbucker with it's prerequisite very high turn count. If you are only going to solo the pickups you'll be fine. But if you are planning on blending the mudbucker with the others, be ready for a frustrating experience.

Can i ask how hard it will be to blend them? is it going to be so loud that the turning up the volume in other pickups wont affect the sound? is there anything i can do to change the impedance in the circuit?
 
There really is no consequence-free way to blend pickups that different, except using an active buffer on each pickup. That will give you totally perfect and even blending.

If you want to stay passive, you might as well just wire it up and see if you're OK with it. It's going to be frustrating if you want nice even balanced blending with a smooth range of tones.