Description
Swapping electronics shouldn’t eat your whole weekend. The Bartolini HR4.5/918 comes fully pre-wired with the preamp and pots already connected, so you’re just mounting it and soldering a few leads instead of untangling a rat’s nest inside your control cavity. It’s built around Bartolini’s respected 2-band preamp circuit, giving you real command over your low end without a maze of switches to fuss with mid-set.
Control layout is straightforward and gig-friendly: one pot handles Volume, the other Blend, so you can dial in exactly how much of each pickup you want in the mix. The tone side gives you dedicated Treble and Bass controls, letting you carve out anything from a tight, punchy attack to a deep, rolling low end depending on the room, the band, or the song.
This harness runs on 9V or 18V power. Bump it up to 18V and you get more headroom and dynamic clarity, especially useful if you’re running active pickups hard or need extra output for a busy mix. A second battery clip for the 18V setup is included, along with wiring instructions to walk you through the install.
Bartolini builds every piece of this in San Luis Obispo, California, and has been the go-to name for bass electronics for decades, supplying luthiers and repair shops worldwide. If you’re upgrading a passive bass or replacing tired electronics, this harness gets you Bartolini tone without reinventing your wiring from scratch.
- 2-band EQ and preamp, pre-wired
- Volume and Blend controls
- Treble and Bass tone controls
- 9V/18V switchable operation
- Includes second battery clip for 18V use and wiring instructions
- 100% USA made by Bartolini
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