Shure 527C Cardioid Handheld Dynamic Microphone with Built-in Transistor Amplifier


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About Shure 527C

The Shure 527C is a dynamic hand-held communications microphone for use in a variety of mobile and fixed-station applications, including police, transportation, amateur radio and similar applications. The 527C offers extremely low sensitivity to hum pickup and low susceptibility to radio-frequency interference. A built-in solid state amplifier permits the use of up to 30 m (100 ft) of unshielded cable.

The modular construction of the 527C allows the cartridge, switch and cable to be replaced in a matter of minutes, if necessary. The 527C fits naturally and comfortably in the hand and is not adversely affected by heat or humidity. The ARMO-DUR case is immune to oil, grease, fumes, salt spray, sun, rust and corrosion and is outstanding in its ability to withstand mechanical shocks and vibration.

Shure 527C Features

  • Built-in amplifier
  • Frequency response from 300 to 5,000 Hz, tailored for voice communications
  • Low sensitivity to hum
  • Low susceptibility to radio-frequency interference
  • "Million-Cycle" leaf-type switch stands up under severe operating conditions and constant use
  • High-impact ARMO-DUR case-lighter and stronger than die-cast metal, comfortable to the touch in hot or cold weather
  • Rugged and dependable under all operating conditions
  • Long-life neoprene-jacketed coil cord

Shure 527C Specifications

Dynamic (with transistor preamplifier)
Polar Pattern
Frequency Response
300 to 5,000 Hz
Sensitivity (at 1,000 Hz)
Open Circuit Voltage: -31 dBV/Pascal (28 mV)
Load Impedance Range
220 to 2,200 ohms
Maximum Signal(with 10 Vdc, 470Ohm load)
135 dB SPL at 1,000 Hz produces +10 dBV (3.2 V) at 10% THD
DC Supply Voltage and Current
4 to 35 Vdc
Double-pole, single-throw, leaf-type
Non-detachable, 1.8 m (6 ft), 4-conductor, neoprene-jacketed coil cord
Black high-impact ARMO-DUR
Dimensions (H x W x D )
3.688 x 2.625 x 1.765" (9.37 x 6.67 x 4.48cm)
12 oz (340g)
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