Carparelli Jazz Bass Pre-Wired Harness (V/V/T) — Acrylic Template, STS Pots, Vitamin Q, Pure Tone Jack

Drop-in upgrade for Fender®/Squire® Jazz Bass style instruments. Hand-wired in the Carparelli shop (Canada) on a precision acrylic template for perfect spacing and an easy transfer to your control plate. Built with top-shelf components for smooth taper, vintage tone, and rock-solid reliability.

Highlights

  • V/V/T Jazz Bass wiring (Passive) pre-wired and tested
  • 3 × STS 250k audio-taper pots for classic Jazz Bass response
  • Vitamin Q Paper-in-Oil capacitor — 0.047µF (0.022µF available by request)
  • Pure Tone Multi-Contact ¼" output jack for a tighter, noise-free connection
  • 2 × Treble-Bleed networks (one on each volume) to keep highs when you roll down — or choose “No Treble Bleed”
  • USA-made vintage push-back cloth wire (black/white)
  • Acrylic wiring template included (keeps spacing true and doubles as a bench jig)
  • Meticulously hand-wired & tested in Canada

What’s Included

  • Pre-wired Jazz Bass harness (V/V/T) on acrylic template
  • 3 × STS 250k pots (3/8" bushing)
  • 1 × Vitamin Q PIO capacitor (0.047µF standard; 0.022µF on request)
  • 2 × Treble-bleed networks (remove by request)
  • 1 × Pure Tone Multi-Contact mono output jack

Options (choose at checkout or message us)

  • Cap value: 0.047µF (warmer/vintage J-Bass) or 0.022µF (a touch more clarity/open highs)
  • Treble Bleeds: Yes (installed on both volumes) or No (vintage roll-off).
    • Default TB spec for single-coil J-Bass: ~150K Ohm 1/4 watt resistor .001uF capacitor in parallel (tuned for clarity without ice-pick highs).

Compatibility

  • Designed for Fender-spec Jazz Bass control plates (V/V/T spacing).
  • Most import plates are compatible; some may require 3/8" (9.5mm) pot holes.

Installation Notes

  • Solder in your pickup hots and ground leads (bridge/body ground).
  • We recommend rosin-core solder and a 25–40W iron.
  • A wiring sketch can be provided on request. Every harness is continuity-tested before shipping.

Why Carparelli

  • Boutique parts, clean layout, and quiet, reliable performance.
  • Smooth, even pot taper—no muddy roll-off.
  • Built with pride in Canada and backed by real luthier support.

carparelli guitars; jazz bass; j-bass; prewired harness; vvt; cts 250k; vitamin q; paper in oil; pure tone jack; treble bleed; acrylic template; vintage push-back wire; made in canada; control plate upgrade; bass electronics

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ConditionBrand New (New)
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  • Jazz Bass Pre-Wired Harness (V/V/T) — Acrylic Template, CTS Pots, Vitamin Q, Pure Tone Jack
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  • Canada

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Carparelli - Guitars-Parts & Accessories

Ottawa, Canada
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