Description
Rewiring an active bass by hand eats up an afternoon and leaves plenty of room for cold joints and crackling pots. The Bartolini HR3.3/918 skips all that — it’s a complete, pre-assembled harness built around Bartolini’s respected 918 preamp, so you can swap out your electronics and get back to actually playing your bass.
Bartolini has been the reference point for bass tone electronics for decades, hand-built in San Luis Obispo, California, and trusted by luthiers and players who need consistent, musical output every time. This harness carries that same reputation into a plug-and-play format that’s ready for installation into your control cavity.
- 2-band EQ built into the 918 preamp
- Volume – Blend control layout, using two mounting holes
- Single-hole stacked Treble/Bass tone control
- Runs on 9V or 18V for extra headroom when you want it
- Includes a second battery clip for the 18V option, plus wiring instructions
The stacked EQ knob keeps your control layout clean while still giving you independent push on the low and high end — handy when you’re chasing a tighter low B or want more sparkle on a slap line without adding another hole to your body. Volume/blend gives you smooth transitions between pickups mid-song, and the audio-grade pots feel solid under the thumb, night after night.
If you’re upgrading a passive bass to active, or replacing tired electronics that have started to feel unreliable on stage, this harness gets you Bartolini’s tone and control layout without the guesswork of building it from scratch.
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