Traditional Vintage for Jazz Bass®

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ObsidianWire Traditional Vintage Pro-Wired Electronics for Jazz Bass are a pop in replacement for your old J bass wiring harness. The upgrade plays homage to the original design that Leo first started crafting back in 59. We take the design a few steps further with some minor adjustments to improve play-ability, and of course your sound.

Best of all, these are super easy to install, and allow for unlimited solder-less pickup changes with ObsidianWire Plug, Play and Enjoy connectors.

The Heritage of Traditional Vintage Pro-Wired Electronics for Jazz Bass:

ObsidianWire Traditional Vintage Pro-Wired Electronics follow the same tried and true formula of the original Jazz Bass with the addition of premium selected and hand matched components for greater clarity and control over your tone.

To make your tone crystal clear at lower volumes we also include an ObsidianWire Custom Spec Treble Bleed Mod. This prevents tone 'muddiness' at low volumes by allowing high frequencies to pass along a separate path to your amp, rather than being stopped short by the increasing resistance at the volume control.

We build ObsidianWire Pro-Wired Electronics using the world’s best craftsmanship and components:

  • 3 x ObsidianWire Custom Select Pots (Crafted by CTS) 250k or 500k (+/-6%) (Matched to +/-2%) SOLID SHAFT
  • 1 x Genuine Switchcraft J11 Mono Output jack
  • 1 x ObsidianWire Custom Select Capacitor (NOS K42Y-2 0.047uf) or (150 Series Polyester Film 0.022uf) (Hand Tested to +/-10%)
  • 1 x ObsidianWire Premium Selected Volume Mod / Treble Bleed - Improved Volume Taper & Clarity
  • 1 x Pre Printed & Easy to Follow Wiring Diagram
  • 1 x Endless Customer Support


ObsidianWire Pro-Wired Electronics for Jazz Bass, are designed to be a direct fit for American and Mexican series Fender® basses. They can also be used to upgrade Japanese Fender & Squier guitars with some adjustments. In the least, you will need a new genuine Fender USA control plate and new 1/4" knobs to fit the higher grade electronics. We cannot guarantee that these will fit any other guitar.

Note: aftermarket control plates do not have the correct Fender spec spacing and as such will not fit our electronics. We recommend a genuine Fender plate – Part Number: 099-2058-000

At ObsidianWire we use US spec 1/4" Solid shaft controls. We recommend that you check your knobs are the correct size and replace them if necessary.



Reviews (7)

Brent 4th Apr 2017

Pro Bass now,Love it!

I purchased the 500k Jazz wiring kit to work in conjunction with two G&L LB100 pick-ups installed on a Fender Blacktop Jazz Bass,I now have working volume pots as the stock pots dropped all volume at the 9 or less setting.I have a Pro Bass now,Love it!

Chris R. Louisville, KY 2nd Mar 2017

What a difference!

I've got an American Deluxe Jazz V that I've just never really liked. I really wanted to, but the tone was just never quite right. Even after swapping out the pickups a couple times, I never found a sound I truly loved. It wasn't long after deciding to ditch the active electronics that I stumbled across Obsidian Wire's Pro-wired products. I was intrigued by the solderless installation, the promise of top notch components, and the glowing reviews found on all of their products, so I figured I'd give it a whirl. I just received my order today, and after a short time spent tinkering with this bass in the workshop, I slapped some strings on, plugged it in, crossed my fingers, and... Wow! What a difference! The Obsidian Wire kit and a set of Nordstrand NJ5s sound amazing together, and my opinion of this guitar has completely changed. As the rest have stated, the craftsmanship was superb and the kit came out of the box ready to pair up with the control plate. Installation and setup was as simple as it gets. I'll certainly be singing Obsidian Wire's praises for quite a while. If you're in the market for a wiring kit for your bass, give one of these a shot. You won't be disappointed!

Additional Info

Additional Info

At ObsidianWire we use only the absolute best components and craftsmanship. We are so confident that you will experience years of trouble free use, that we guarantee it with an industry leading, three year warranty. If you feel that your Pro-Wired Electronics are not working like they should, please contact us and we will fix or replace them as soon as possible.