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Basses with series/parallel switches

The ZON Sonus 5/1 that I had made for me in 1999 (with a single, passive volume control, no preamp or other controls , such as tone roll off) was sent back to ZON for some work on it. While there, Joe added a second pickup, between the neck and existing pickup; he replaced the original Seymour Duncan humbucker with two Bartolini MK 1 (?) pickups as he could not get another SD pickup, any longer. He also installed a buffer preamp for isolating the two pickups, which included individual volume controls, and tone roll-off controls that were stacked together. The volume pots also had pull switches to change each pickup to either series or parallel wiring. This was very interesting as, outside of a change in output level between the two settings, there was no discernible change in tone between series or parallel.

Joe also added abalone fingerboard dots, and repaired a deep scratch on the back of the neck.

I had previously installed the Hipshot bridge.

Here is the Sonus 5/1.2 (as I called it).

Zon Sonus 5-1.2-1200_9604.jpg
 
Fenders with S-1 option, once came stock.
It is a $10 mod on most instruments, so I don't really pay attention to instruments that have it stock.

Yep, there aren't many, but it's a super easy mod with a single pot change or addition of a switch. It's a very useful mod for any J-bass as it brings in a tone very similar to a p-bass. Not so useful on a P-bass. On a MM style pickup some folks like it, but I've not got one so I'll leave it to them to answer.

I may be wrong. As it's been more then a decade since I last fiddled around with one, but the Peavey T-40's, I believe, had series/parallel switching.

(First time posting, for what it's worth.)
Actually, the Peavy "mystery" switch is a in/out of phase switch that only works when both pickups are on.

Welcome to Talkbass!
 
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The ZON Sonus 5/1 that I had made for me in 1999 (with a single, passive volume control, no preamp or other controls , such as tone roll off) was sent back to ZON for some work on it. While there, Joe added a second pickup, between the neck and existing pickup; he replaced the original Seymour Duncan humbucker with two Bartolini MK 1 (?) pickups as he could not get another SD pickup, any longer.
Lovely bass!
I'm going to go out on a limb and guess that those aren't MK1 pups. MK1 is the cheaper import Bart-outsourced pickup and preamp system that ends up on mid-range bases like Lakland 55-01 (I've got one) some Ibanez's, etc. AFAIK, they are only available in a narrower elongated soapbar. The MK1 is not a bad system, but definitely not worthy of something like a ZON. I'm planing to drop mine in favor of a passive Chi-Sonic set.
 
Yep, there aren't many, but it's a super easy mod with a single pot change or addition of a switch. It's a very useful mod for any J-bass as it brings in a tone very similar to a p-bass. Not so useful on a P-bass.

Welcome to Talkbass!

Well, my MIJ Edwards, which is none other than an Esp Precision with same Fender specs so not delivered in the US for patent pendin' reasons, whose passive tone knob push/push system works very much like early 2000s Fender American Precision with s/1 switch.
Actually there also was a Jazz bass version which I really don't remember if it had same series/parallel switchin'.
Btw my Edwards Precision can go from standard series tone (push option) to parallel tone (push/push option) and, bein' it an ash body Precision, this enables me to deliver two completely different approaches: series is the true Precision "punch in you face" sound, parallel is way more mid scooped and kinda... "transparent" so, pushin' a bit more on volume pedal to counterbalance the loss in overall output, grants me a perfect slap sound.

That's where I'd like to slightly say no to your assumption that this option is not so useful on a P bass: on the opposite I really think it to be more efficient on a Precision bass to offer a completely different sound.

Cheers,
Wallace

PS: former Ibanez Atks had this option too: (p bass shaped) symmetrical slab ash bodies, they offered a so called triplecoil bridge pickup like this: 3 position switch which, in front option, had front and center coils in series mode with highcut filter (Precision with rolled off tone) center position with front and center coils in series mode with no filter (Precision with rolled on tone) and rear position with front and rear coils in parallel (Jazz bass with rolled on tone)
 
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Yep, there aren't many, but it's a super easy mod with a single pot change or addition of a switch. It's a very useful mod for any J-bass as it brings in a tone very similar to a p-bass. Not so useful on a P-bass. On a MM style pickup some folks like it, but I've not got one so I'll leave it to them to answer.


Actually, the Peavy "mystery" switch is a in/out of phase switch that only works when both pickups are on.

Welcome to Talkbass!

Agree. I've got a P with S1 switch. After the switch is engaged, the volume drops a lot, but the tone is not so impressive.
 
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