Two tone voices in one harness — and it fits where standard pots won't. The Sonic Pickups J Bass Mini Pot Dual Tone Pre-Wired Harness is built for Jazz Basses with tight pot cavities, giving you a classic P Bass-style tone rolloff in the down position and a rich, warm second voice when you pull the tone pot up.
What's Inside
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Bourns 250k solid short-shaft mini pot (x1) — smooth volume control, compact form factor
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Bourns 250k solid DPDT mini push/pull pot (x1) — switches between two capacitor voices with a simple pull
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WIMA .047µF 63v box capacitor (x1) — the classic tone cap used in P Basses for decades; crisp, focused rolloff
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WIMA .1µF 63v box capacitor (x1) — engaged when the tone pot is pulled up; rich, warm, and full-bodied
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Switchcraft #11 mono jack (x1) — bulletproof output, made in the USA
or
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Pure Tone mono jack (x1) — multi-contact design for a more secure cable connection
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Gavitt cloth pushback wire in black, white & yellow — period-correct and flexible
The Dual Tone Feature
Tone pot down: Standard .047µF P Bass-style rolloff — familiar, focused, and punchy.
Tone pot up: .1µF cap engaged — warmer, fuller, and darker for a rounder vintage voice.
Who It's For
Basses made outside the US are often routed for smaller pots. This harness solves that — premium parts and expanded tone control, no routing required.
Compatibility
Designed for Jazz Bass-style instruments with non-USA-spec pot cavities. Works with standard USA-sized knobs. Select your output jack preference and include your bass's make, model, country of manufacture, and handedness in your order notes so we can confirm fit before shipping.
Drop-In Installation
No point-to-point soldering required. Simply connect your pickups and output jack — most players complete the install in under 30 minutes. View Wiring Diagram.
Handcrafted by Sonic Pickups in the USA.
