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Type Dynamic
Frequency Response 60 to 11,000 Hz
Polar Pattern Cardioid (unidirectional) - uniform with frequency, symmetrical about axis
Impedance Dual. Microphone rating impedance is 150 ohms (260 ohms actual) for connection to microphone inputs rated at 19 to 300 ohms and "High" for connection to high-impedance microphone inputs. Switch is in high-impedance position as supplied.
SENSITIVITY (at 1,000 Hz)
LOW Open Circuit Voltage* -57.5 dB (1.3 mV)
HlGH Open Circuit Voltage* -38.5 dB (12 mV)
Net Weight 736 grams (1 Ib 10 oz)
Shipping Weight 1020 grams (2 Ib 4 oz)
*(1 Pa = 94 dB SPL)

Vendors Other Products

Shure 522 Noise Canceling Desktop Microphone

2.50 LBS
Usually ships within 24 hours
Calculated at checkout

Product Description

The Model 522 is a dynamic base-station microphone for radio communications, paging, and dispatching systems. Its cardioid (unidirectional) pickup pattern suppresses unwanted background noise from nearby dispatchers, ventilating equipment, or office machines. It also can reduce feedback in public address paging applications.


  • Frequency response tailored for voice communications
  • Directional microphone element
  • Switch-selected dual impedance output
  • Finger-tip control bar (locking or non-locking action) to actuate microphone circuit and an external relay or control circuit
  • Long-life switch to satisfy rigorous requirements of communications and paging systems
  • PTT switch that can be locked “On” for hands-free operation
  • Four conductor, shielded, bare-ended (no connector), straight cable
  • Adjustable height
  • Does not require DC power for operation