Shure Incorporated Green Bullet Harmonica Microphone 520DX

With its signature green and chrome die-cast casing, the 520DX "Green Bullet" holds a spot in history as the definitive blues harp voice.
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.
Type
Dynamic
Frequency Response
100 to 5,000 Hz
Polar Pattern
Omnidirectional
Impedance
High, unbalanced
Load Impedance Range
Minimum: 100 kilohms
Output Level (at 1,000 Hz)
Open Circuit Voltage -38.0 dBV/Pa (13 mV)*
*1 Pa = 94 dB SPL
Polarity
Positive sound pressure on diaphragm produces positive voltage on tip with respect to sleeve (ground) of microphone output phone plug connector
Cable
6.1 m (20 ft) two conductor shielded with standard 1/4-inch phone plug attached (supplied wired for high-impedance, unbalanced connection)
Case
Green and chrome finished die casting
Dimensions
63 mm (2.5 in) max diameter, 82.6 mm (3 1/4 in) long
Net Weight (with cable)
737 grams (26 oz)