STC 3-P Preamp, how to install a passive/active switch?

[Dambass]

Hello folks, i'm new to the forum, hope everything is well!

As the title says, i want to install a passive/active switch on my bass, i have the neccesary hole and the DPDT switch, the preamp is a STC 3-P, the bass is a Warwick Streamer Jazzman, rigth now the preamp is installed and sounds fantastic, but i like the passive tone too.

I sent an email to seymour duncan staff, and although they were nice with me, they sent me here, and they gave me this drawings which seems good but i still don't understand 3 things:

http://www.seymourduncan.com/support/wiring-diagrams/schematics.php?schematic=active_passive_switch

1) "Hot from preamp" > Don't know which wire is that

2) "Hot to volume pot in" > This means i should solder a wire from the center lug of the volumen pot, to this lug of the dpdt switch? (sorry for the stupid questions)

3) "Hot from pickup or blend pot" > At this moment, The two hot wires from each pickups are soldered to their respective lug in the blend pot, so i guess i should leave those two hots there, and bring a single hot from the blend pot? if so, how to do it? from where?

Sorry for the bad english and stupid questions, and thankyou in advance

(Here is the Diagram of my preamp, Fig 1)
http://www.seymourduncan.com/images/products/basslines/501060-105.pdf

 

[JOLLY]

Re: STC 3-P Preamp, how to install a passive/active switch?

Welcome to the forum!! I'm sorry I can't help you with your questions.

 

[hermetico]

Re: STC 3-P Preamp, how to install a passive/active switch?

The switching diagram provided by SD is completely right.
You have the answer to "which is my pre-amp hot", in your own preamp's attached diagram, figure 3: "the white wire from the center lug of volume pot".

Tracing back it, is in fact, the WHITE WIRE AT LEFT HAND OF YOUR PRE-AMP, as seen in the picture above.

 

[Funkfingers]

Re: STC 3-P Preamp, how to install a passive/active switch?

Welcome to the forum.

Many Warwick bass guitars featuring active tone circuitry come with a push-pull volume control pot. This performs precisely the function that you describe. Down = active EQ in circuit. Up = EQ bypass.

If you do not require the Slap Contour function on the SD/Basslines circuit, you could rewire the push-pull switch under the volume pot to perform the EQ bypass function.

 

[Dambass]

Re: STC 3-P Preamp, how to install a passive/active switch?

Welcome to the forum.

Many Warwick bass guitars featuring active tone circuitry come with a push-pull volume control pot. This performs precisely the function that you describe. Down = active EQ in circuit. Up = EQ bypass.

If you do not require the Slap Contour function on the SD/Basslines circuit, you could rewire the push-pull switch under the volume pot to perform the EQ bypass function.

Hello Funkfingers, i thought exactly that too, but honestly i like a lot the slap contour preset, i'd like to keep it!