"Green Bullet" Harmonica Microphone


With its signature green and chrome die-cast casing, the 520DX "Green Bullet" holds a spot in history as the definitive blues harp voic.

The 520DX features a volume control knob at the base of the microphone that allows users to make adjustments to suit their needs during live performance. An attached cable with a standard 1/4-inch plug allows the microphone to be connected to a high-impedance device. Contoured to fit perfectly between harmonica and hands, it can also be used for distinct, lo-fi vocals.



  • Volume control knob allows users to adjust the volume to fit each musical situation
  • Rugged, dynamic cartridge with improved response
  • High-impedance, omnidirectional
  • Supplied with 1/4 inch connector

Shure 520DX: "Green Bullet" Mic For Harmonica



  • Dynamic (moving coil)

Frequency Response

  • 100 to 5,000  Hz

Polar Pattern

  • Omnidirectional


  • High, unbalanced

Load Impedance Range


  • 100 kΩ

Output Clipping Level at 1kHz, open circuit voltage

  • -38.0 dBV/Pa (13 mV) [1]


  • Positive pressure on diaphragm produces positive voltage on tip with respect to sleeve (ground) of microphone output phone plug connector


  • 6.1 m (20 ft) two conductor shielded with standard 1/4-inch phone plug attached (supplied wired for high-impedance, unbalanced connection)


  • Green and chrome finished die casting


  • 63 mm (2.5 in.) max diameter, 82.6 mm (3 1/4 in.) long

Net Weight with cable

  • 737 g (26 oz.)

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