Piezo Preamps

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Piezo Preamp for your Pocket
£67.00
Phantom-powered Piezo Preamp.
£17.50
Unbalanced piezo preamp module.
£17.50
Altoids Piezo Preamp (SV802)
Stompville piezo preamp built into an Altoids tin. Suitable for passive piezo transducers (violin, cello, double bass, cajon, stompbox, percussion, mandolin, ukelele, etc.), homebrew hydrophones, and preventing tone suckage on your electric guitar.

9V battery-powered with very low power consumption and low-battery LED light.

Professionally hand-built from a tried and tested design using closely matched JFET transistors. Extremely low distortion and noise. Supplied with user guide. Battery not included.

Please note that the preamp is built into a genuine used Altoids tin and the tin will likely not be in perfect condition. Please expect small scuffs and dents and minor damage to the paint finish. Such imperfections are not to be considered manufacturing defects of the Piezo Preamp and are not cause for product returns.

Battery not included.
Piezo Preamp for your Pocket
£67.00
Phantom Piezo Preamp V2 (SV206 (with XLR), SV207 (no XLR))
New model with J113 JFETs and incorporating zener diode input protection.

Professional-quality hand-built piezo preamp module for building into stompboxes, cajons, cigar-box guitars, etc Low distortion, very low noise, wide-bandwidth matched-JFET preamp with XLR output.

  • Suitable for direct connection to mixing console with balanced microphone input and phantom power.
  • Takes away the need for external DI box/preamp.
  • Complete with input cable for direct connection to Piezo transducer element and mounting screws for XLR socket.

Notes: Piezo transducer element not supplied. You will need to fully shield the inside of your instrument using copper foil tape or alternatively mount the unit in a shielded enclosure.

We sell many of these preamps to artists creating installation pieces where they are used to facitlitate musical interactivity between the public and the installation piece. They have also been used for custom mulit-channel electro-percussion instruments.

We sell many of these preamps for use as preamplifier for hydrophone transducers.

Available as an option with the XLR connector not supplied as often customers wish to solder the output cable directly to the printed circuit board.

Phantom-powered Piezo Preamp.
£17.50
Unbalanced Piezo Preamp (SV202)

Professional-quality hand-built piezo preamp module for building into stompboxes, cajons, cigar-box guitars, hydrophones, etc.

Low distortion, very low noise, wide bandwidth matched-JFET preamp with high impedance unbalanced input and 1/4" jack unbalanced output.

  • Suitable for direct connection to mixing console/DAW/Amplifier.
  • Solder connections for piezo element.
  • Panel-mounted via 11mm (7/16") hole.
  • Supplied with 9V battery clip.

This product requires a power supply which may be derived from a standard 9V battery or a regulated, smoothed d.c. power supply with a voltage between 4V and 24V. A power supply voltage between 9V and 18V is recommended.

Note: Piezo transducer element not supplied. Murata 7BB-35-3 recommended. You will also need to fully shield the inside of your instrument using copper foil tape or install the preamp in a shielded enclosure.

Download the user guide from downloads tab.

Unbalanced piezo preamp module.
£17.50
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