Description
Skip the soldering marathon. This Bartolini HR-4.7AP/918 harness arrives fully assembled with the pre-amp and pots already wired together, so you’re dropping a complete, road-ready electronics package into your bass rather than fighting with a schematic at midnight.
The heart of it is Bartolini’s 3-band EQ paired with an active/passive preamp — pull up on the Volume knob and the whole active circuit steps aside, leaving you with a pure passive signal straight from your pickups. That’s real tonal flexibility, not a marketing bullet point.
- Volume control with built-in Active/Passive push-pull switch, plus a Blend knob
- Treble/Bass stack control, Mid control with a 3-frequency toggle switch, and a dedicated Bass control
- Runs on 9V or 18V — a second battery clip is included for players who want the extra headroom of the 18V setup
- Comes with wiring instructions and black ring/center knobs to finish off the tone stack
Bartolini builds every one of these in San Luis Obispo, California — no overseas contract manufacturing, just the same domestic quality control that’s earned them trust from luthiers and working musicians worldwide. Pro Audio Land has carried Bartolini gear for years, and this harness is one of the easiest ways to get their signature clarity and low-end punch into your bass without touching a soldering iron more than a few times for the final connections.
Whether you’re chasing a scooped slap tone or a warm, rounded passive growl, having both worlds available at the flick of a switch is the kind of flexibility that changes how you play, not just how you sound.
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