Bartolini Adjustable Gain Piezo Buffer (AGBP/918), Single Channel

The AGPB/918 is a high impedance preamp for use with piezo or microphonic transducers. It features adjustable gain which allows you to boost the input signal up to 12dB (4X) while maintaining flat frequency response. It is less than half the size of a 9-volt battery making it ideal for instruments with limited cavity space. The AGPB/918 provides a strong output signal and isolation from external equipment that may otherwise adversely affect pickup tone. It is often used to make a passive instrument active with very little effort. With only 4 wires to connect – power, ground, input, and output – it is a simple way to ensure your piezo-pickup instrument has all the power and isolation that it needs. Like all of our preamps, the Piezo buffers are internally shielded to reject electromagnetic noise and include internal filters to block AM and FM radio on the inputs. Bartolini set the standard of fully sealing the sensitive electronics. We use professional double tin plated pure copper wire with durable semi-rigid insulation. This ensures the 4" pre-stripped wires don’t flop around in the cavity and the wires don’t cut through the insulation over time. Either preamp can be used with either a single 9-volt battery (9-volt operation) or two 9-volt batteries wired in series (18-volt operation) for double the (6dB extra) headroom with no tonal change. Both versions delivery clear and transparent sound with extremely low distortion.

• single channel buffer preamp for electric bass
• clear transparent sound with very low distortion
• suitable for passive high-impedance pickups (piezo or microphonic pickups)
• input impedance 3.3 MOhm
• output impedance 3.6 kOhm
• adjustable gain up to 12 dB
• supports 18V operation for 6 dB extra headroom
• power supply via 1 x 9V / 2 x 9V (18V) battery (not included)
• dimensions (L x W x H) 26.7 x 20.1 x 10.9 mm / 1.05" x 0.79" x 0.43"
• Note: The right and refund policy does not apply to electronic components if their cables have been cut or soldered, if they show signs of use, if they have already been installed or other damage affecting the condition of the goods is present.