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Shure 527B Voice Communication Microphone (Discontinued)
Part # 527B
Model # 527B

The Shure 527B Voice Communication Microphone is wired for balanced-line operation and is recommended for use where long cable lengths are required, or areas where strong noise fields may exist.


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Description

Details

The 527B microphone is an extremely reliable handheld dynamic microphone with an extended low- and high-frequency response particularly suited to ham radio use, mobile FM transmission, and top-quality paging systems. The microphone has a clear, crisp, and natural voice response. It features small size, light weight, and modular construction.

The modular construction of the 527B permits ease of field serviceability. The design of the cartridge, switch, and cable
makes them easily replaceable. The microphone is wired to prevent lead breakage or crimping.

The unit fits naturally and comfortably in the hand and is not affected by heat or humidity. The exclusive 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 vibrations. The “Million-Cycle” leaf-type switch is designed to withstand severe operating conditions and constant usage.

The 527B is wired for balanced-line operation and is recommended for use where long cable lengths are required, or areas where strong noise fields may exist. The 527B microphone can be fed directly into a standard low-impedance amplifier, or a Shure A95 Series Line Matching Transformer can be used for coupling the 527B to the input of a high-impedance amplifier. A two-conductor shielded cable can be used for extending only the microphone circuit. If both the microphone circuit and the remote circuit are to be extended, a four-conductor cable, having two shielded conductors for the microphone, should be used.

Features

Features

  • Frequency response from 200 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
Specification
TypeDynamic
Frequency Response300 to 5,000 Hz
Sensitivity (at 1,000 Hz)-53 dBV/Pa (2.2mV)
ImpedanceImpedance rating 150 Ohms (200 Ohms actual) forconnection to mic inputs rated at 19 to 300 Ohms
SwitchDouble-pole, single-throw, leaf-type
CableAttached, 1.8 m (6 ft), 4-conductor (2 shielded), neoprene-jacketed
Furnished AccessoriesRK6MB Mounting Bracket (3 in kit)
Weight11.9 oz (337 g)
Shipping Weight18.8 oz (533 g)
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