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Bartolini

AGMPB Kit

Bartolini AGMPB Adjustable Gain Piezo Buffer

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Checklist Bullet IconAGMPB = ADJUSTABLE GAIN MAGNETIC-PIEZO BUFFER

Waveform Bullet IconUSE THIS HANDY LITTLE PREAMP TO BALANCE THE SIGNALS OF PIEZO AND MAGENETIC PICKUPS

Configuration Bullet IconPIEZO AND MAGNETIC SIGNALS EACH HAVE THEIR OWN MINI CONTROL POT

Data Science Bullet IconTHE AGMPB CAN WORK WITH A PREAMP

Wrench Bullet IconTHE AGMPB REPLACES BART'S OLD MPB2 PIEZO BUFFER AND NOW ALLOWS FOR ADJUSTABLE GAIN ON BOTH CHANNELS

empty box iconFREE SHIPPING IN THE USA
configuration iconEXPERT TECHNICAL SUPPORT
checklist iconIN STOCK MEANS IN STOCK

DESCRIPTION

Dual-channel buffer/preamp with totally flat response and independently adjustable gain on both the piezo and magnetic channels.

The AGMPB/918 is a dual-channel buffer/preamp that provides a high impedance input for use with piezo or microphonic transducers and channel isolation for magnetic pickups. Both channels are equipped with trimmers for adjustable gain allowing you to boost the output signal up to 12dB (4x) while maintaining a perfectly flat response. It is less than 1/2 the size of a 9-volt battery making it ideal for instruments with limited cavity space.

The AGMPB/918 provides a powerful output signal and isolation from external equipment that may otherwise adversely affect pickup tone. This is an upgrade replacement for the MPB2-918 simplifying wiring and adding true gain adjustment to both channels.

The AGMPB/918 is ideal for providing excellent tone from an instrument with 1 or 2 magnetic pickups and a piezo bridge pickup. Both channels deliver clear and transparent sound with extremely low distortion. Like all of Bartolini preamps, it is internally shielded to reject electromagnetic noise and includes filters to block AM and FM radio signals on the inputs. Bartolini set the standard for fully sealing the sensitive electronics. They use only professional double tin-plated pure copper wire with durable semi-rigid insulation. This ensures that the 4-inch pre-stripped wires do not flop around in the cavity and that the wire does not cut through the insulation over time.

The AGMPB/918 can be used with a single 9-volt battery (9-volt operation) or with two 9-volt batteries wired in series (18-volt operation) for 6dB extra headroom with no tonal change. The AGMPB/918 delivers clear and transparent sound with extremely low distortion. The buffer is sold as a kit that include a 25KOhm blend pot.

TECH & DIMENSIONS

Module Size:
1.05" [26.7mm] Long
0.79" [20.1mm] Wide
0.43" [10.9mm] Thick

Operating Voltage: 9V or 18V

Magnetic Channel Input Impedance: 1Mő©

Piezo Channel Input Impedance: 3.3Mő©

Output Impedance: 3.6Kő©



Magnetic Channel
The pre-wired gain trimmer lets you adjust the output level of the magnetic channel.
Gain: 0-12dB

Piezo Channel
The pre-wired gain trimmer lets you adjust the output level of the piezo channel.
Gain: 0-12dB

AGMPB/918 Wiring diagram

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