Favorite PJ bass wiring

snorn · #1 03-16-2009, 07:33 AM

What´s your favorite / prefered or the "best" wiring for PJ bass?

I thinking about adding a bridge pickup to my p-bass, so I´ll gonna make similar decision.

Suggestions, pros/cons and other thoughts are welcomed!

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neck volume, bridge volume, master tone
http://www.seymourduncan.com/support...c=std_p_j_bass
master volume, blend, master tone
http://www.seymourduncan.com/support...p_j_bass_blend

JKambing · #2 03-16-2009, 07:50 AM

I voted the first option. I think its more versatile and gives you more control over your tone. This is especially the case if you're more into the P bass tone, but just want the J pickup for that extra "OOMPH!".

I feel that blend isn't as versatile, though its simpler to use. I think. I'm not too familiar with VBT.

I didn't vote the third option because you won't be able to blend tones at different pickup volumes (example P on full volume, J on half volume).

All this is just my two cents though.

**line6man** · #3 03-16-2009, 08:05 AM

To put it plain and simple, if you use a second volume or a blend, the P bass tone will change.

I always prefer 3 way switches, as they keep the wiring direct and do not add resistance, which would darken up the tone.

Aside from that, 2 volumes is better than a blend pot.
The blend pot adds another pots worth of resistance, and of course there are problems associated with passive blends as well.

I say 3 way switch, and failing that, 2 volumes.

**line6man** · #4 03-16-2009, 08:08 AM

Quote:

Originally Posted by JKambing

I didn't vote the third option because you won't be able to blend tones at different pickup volumes (example P on full volume, J on half volume).

How about 2 volumes with the 3 way switch, so that you can blend the pickups if you want, but the tone will stay the same in P bass mode.

fullrangebass · #5 03-16-2009, 08:18 AM

vol, 4pos rotary switch (P, PJ in series, PJ in parallel, J soloed), tone aka Dingwall Super PJ 4str

JKambing · #6 03-16-2009, 08:24 AM

Quote:

Originally Posted by line6man

I always prefer 3 way switches, as they keep the wiring direct and do not add resistance, which would darken up the tone.

Wow. I didn't know that. I knew resistance affected sound, but wasn't exactly sure how.. Thanks. Learned something new. Haha.

I got a question though. If the tone is darkened when using VVT, would using 500k volume pots instead of 250k volume pots help retain a more traditional P bass tone (instead of it being darkened)?

SGD Lutherie · #7 03-16-2009, 08:26 AM

Quote:

Originally Posted by fullrangebass

vol, 4pos rotary switch (P, PJ in series, PJ in parallel, J soloed), tone aka Dingwall Super PJ 4str

Oh I love that bass!

That's what I had in my PJ, a 4 position rotary with the same combinations.

**line6man** · #8 03-16-2009, 08:33 AM

Quote:

Originally Posted by JKambing

Wow. I didn't know that. I knew resistance affected sound, but wasn't exactly sure how.. Thanks. Learned something new. Haha.

I got a question though. If the tone is darkened when using VVT, would using 500k volume pots instead of 250k volume pots help retain a more traditional P bass tone (instead of it being darkened)?

In theory, two 500K pots is 250K, so it should be the same.
I am not sure how different real life would be from this theory though.
You would be taking a resistance relative to a 500K pot and adding a 500K pot in parallel rather than using a resistance relative to a 250K pot.

Either way, i think two volumes and a 3 way would be the best option.

JKambing · #9 03-16-2009, 08:39 AM

Line6man: I see. Thanks!

SGD Lutherie · #10 03-16-2009, 08:46 AM

Quote:

Originally Posted by line6man

In theory, two 500K pots is 250K, so it should be the same.

I agree.

Mr. Ray · #11 03-16-2009, 08:55 AM

Two 250 ohm concentric pots (vol/tone) for each pickup. It is the simplest. You can run the P flat and put some extra bite on the J. I've used this combination on a fretless and it works great.

JTE · #12 03-16-2009, 09:23 AM

Master volume is critical to me. Every bass I've had with two volume controls is a PIA on stage. Probably from years of playing Precisions and StingRays, but I just want one volume control. A decent blend pot PROPERLY wired works well with both passive and active P/J basses in my experience. Make sure it's a blend pot, and that you have the hots of the blend and the ground connected to the correct part of each pot gang's resistance path, and that the PUPs are in phase. It'll be electronically just like a typical Jazz bass-style V/V/T, with the addition of an extra volume pot (the master) in the circuit. And that's a pretty minimal tone loss in the real world (assuming good PUPs, cables, and amps).

jte

pbassnut · #13 03-16-2009, 09:42 AM

One thing to also consider that is probably even more important to your sound than the wiring options you mentioned is the placement of the J pickup. I had (what I considered to be) a failed P/J project when I had my luthier rout a J pickup onto a '77 Precision in the exact position that a 60's style J bridge pickup would go. This ended up being too close to the P pickup and there was too much frequency cancellation with both pickups wide open which made it too thin and "midrange scooped" sounding for my taste. It'll sound better (IMHO) if you place the J pickup in the 70's J bridge pickup position which is about a half an inch closer to the bridge. In addition, get a set of P/J pickups that were designed to work as a unit such as Bartolini, Sadowsky or even EMG if you don't mind going active rather than "mix and match" different brand and/or model P and J pickups and if you don't like 60 cycle hum, get a humbucking J pickup ... but that's just my opinion ... I could be wrong. ;^)

**ExaltBass** · #14 03-16-2009, 09:44 AM

Mine is VOL-VOL - had a 3 way, didn't need it, so I pulled it and kept it simple.

chunkstyle · #15 03-16-2009, 09:48 AM

i love my Tony Franklin. there are enough good tones in it to satisfy me. i don't miss the ability to blend...

Jefenator · #16 03-16-2009, 10:07 AM

V/V/T works fine for me (I like some darkening). I would probably switch to a switch next time, though.

Stealth · #17 03-16-2009, 02:17 PM

I'd prefer to have a VVT, but right now my PJ has a VTS (Tony Franklin style) and it works fine.

troyus · #18 04-21-2009, 08:18 AM

I'm building one right now, and it's going to be a stack knob VT-VT setup ala 60-62 jazz bass.

PJSShearer · #19 04-21-2009, 08:34 AM

After much experimentation I ended up with Master Volume, Neck Volume, Bridge Volume - No tone control at all! - plus 3 toggle switches between the pots - Kill, Series/Parallel (P) and Phase reversal. I gigged this arrangement for several years.

I tended to find that I never used the tone control, always wide open, the Kill switch was useful in the Cabaret/Show work with fast chart changes I was doing and after trying just about every combination of coil and phase switching I could find I settled on the two I mentioned.

However, I just rewired my bass with VVT - plus the coil switches - well, I felt like a change :-)

geoffzilla · #20 04-21-2009, 08:46 AM

Quote:

Originally Posted by pbassnut

One thing to also consider that is probably even more important to your sound than the wiring options you mentioned is the placement of the J pickup. I had (what I considered to be) a failed P/J project when I had my luthier rout a J pickup onto a '77 Precision in the exact position that a 60's style J bridge pickup would go. This ended up being too close to the P pickup and there was too much frequency cancellation with both pickups wide open which made it too thin and "midrange scooped" sounding for my taste. It'll sound better (IMHO) if you place the J pickup in the 70's J bridge pickup position which is about a half an inch closer to the bridge. In addition, get a set of P/J pickups that were designed to work as a unit such as Bartolini, Sadowsky or even EMG if you don't mind going active rather than "mix and match" different brand and/or model P and J pickups and if you don't like 60 cycle hum, get a humbucking J pickup ... but that's just my opinion ... I could be wrong. ;^)

I ended up with this bass, and it has become my "go to". I found that swapping the jazz pu for a single coil Fralin made a huge difference in tone. I'm just saying this to suggest that a 60s spacing may still work for some. There are a lot of factors.