Description
Rewiring a preamp from scratch eats up time and patience. The Bartolini HR2.4AP/918 harness sidesteps all that by arriving fully assembled with Bartolini’s respected preamp electronics and high-quality potentiometers built to handle years of stage and studio use without going scratchy or loose.
This particular configuration runs a 3-band EQ layout across three control holes:
- One hole holds the Volume control, which doubles as an Active/Passive switch via push-pull.
- Two holes carry the Tone section: a stacked Treble/Bass knob plus a Mid control with a 2-frequency push-pull switch.
Everything needed to get it installed comes along with the harness, including a second battery clip for wiring an 18V setup if you want extra headroom, clear wiring instructions, and matching black ring and center knobs for the tone stack.
Quick specs:
- EQ: 3-band
- Volume: Volume w/ Active/Passive push-pull switch
- Tone: Treble/Bass stack + Mid w/ 2-frequency push-pull
- Included: 2nd battery clip (18V option), wiring instructions, black ring & center knobs
Ideal for players upgrading an existing Bartolini-equipped instrument or swapping in a proven preamp without the hassle of sourcing individual components.






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