Description
Piezo pickups are notorious for throwing out a hot, glassy signal that’s tough to control once it leaves the instrument — the Bartolini AGPB/918 exists to solve exactly that problem. It’s a dedicated high-impedance buffer stage designed to sit between your piezo source and the rest of your electronics, preserving the piezo’s natural clarity while giving you a proper handle on gain.
Because piezo elements are so sensitive to loading, running them straight into a standard preamp or DI often means signal loss, harshness, or an output level that’s wildly inconsistent from your magnetic pickups. The AGPB/918 buffers that high-impedance signal cleanly, and the adjustable gain stage lets you dial the output to match whatever piezo source you’re working with — whether that’s an acoustic bridge pickup, an under-saddle transducer, or a hybrid piezo/magnetic setup on a bass or guitar.
Bartolini’s reputation for understated, musically honest electronics carries through here: this isn’t about coloring the tone, it’s about getting the piezo signal to the next stage of your chain intact and at a usable level.
- High-impedance piezo buffer stage
- Adjustable gain for matching output level
- Bartolini build quality
- Ideal for players integrating piezo pickups into custom or hybrid wiring setups
A smart addition for anyone building out a piezo-equipped instrument who wants the pickup’s true voice to survive the trip to the amp.





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