Cardioid Condenser Microphone for Hand Percussion & Banjos


The AMT ERTS is a second-generation percussion microphone system from AMT.  It is designed, manufactured by hand, and distributed by Applied Microphone Technology in the USA.  The ERTS is a mini condenser microphone for professional live and studio use.  The ERTS qualities include a natural & even reproduction of sound, resistant to feedback, with high SPL tolerances.

The system comes with one AMT microphone with Iso-Ring technology, an AMT inline preamp (phantom power required ), and a clamp to fit onto various percussion and even the ropes of hand percussion instruments.

The ERTS incorporates a flat frequency response which allows the microphone to reproduce percussion instruments as natural as possible.  The inline preamp can be placed on the floor, a belt clip for mobility, or in your pocket.  A low roll-off filter as well as a dB cut are included on the inline preamp.

The system includes a soft carrying pouch, 6 ft of cable, ERTS clamp, and the AMT inline preamp (phantom power required).


  • ERT Microphone
  • Special clamp design for hand percussion or Banjo hardware mounting
  • 1x inline preamp
  • Hard shell Blo-mold protective case


  • Banjo
  • Djembe
  • Other Hand Percussion


  • Element: Condenser
  • Polar Pattern: Cardioid
  • Frequency: 30Hz-20kHz
  • Sensitivity: 67dB + 4dB
  • Impedance: 150 ohms
  • Power: 12-52V DC
  • Max Input SPL: 141 dB
  • Dimension: 2"
  • Cable: 5 ft
  • Weight: 13g

WARNING: Cancer and Reproductive Harm -

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