Sony ECM77BC Omni-Directional Electret Condenser Lavalier Microphone with 4-pin Locking Plug


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About Sony ECM77BC

The ECM-77 is probably the most often seen lapel microphone on TV and it is usedwidely in both studio production and on location. Its popularity is based on a combination of excellent sound quality, robust construction and an attractive cosmetic design. The ECM-77BC microphone is supplied with a 4-pin locking plug for use with Sony wireless belt-pack transmitters such as the WRT-822 and WRT-8B.

As a lapel microphone, the ECM-77 is an alternative to the traditional hand held microphone and being hands free' it allows the presenter to concentrate on her/his performance.

The ECM-77 is an essential tool for achieving good quality voice recording. The microphone's capsule is designed for voice pick-up with an extended frequency response and impressive sensitivity. The popularity of the microphone in TV production means that most sound people will be familiar with using the ECM-77.

Sony ECM77BC Features

  • Designed for high quality voice pick-up
  • The ECM-77's capsule features a voice emphasis curve, extended frequency response and sensitivity.
  • Minute size
  • The capsule has a diameter of only 5.6mm and is 12.5mm long.
  • Ready for wireless systems
  • The ECM-77BC is compatible with the WL-800 beltpack transmitters (WRT-822 and WRT-8), providing high quality wireless microphone systems for video production.

Sony ECM77BC Specifications

Electret condenser
Directivity/Polar Patterns
Frequency Response
Dynamic Range
equal to or greater than 90dB
Signal to Noise Ratio
equal to or greater than 64dB
Max Input/Sound Pressure Level
equal to or greater than 120dB SPL
Output Impedance
150 Ohms +/-20% (1 kHz) Balanced
Output Connector
1.2m Cable with a SMC9-4P Connector for use with the WRT-822A and WRT-860A Wireless Beltpack Transmitters
Induction noise
Power Requirements
Phantom power is supplied via the connected body-pack transmitters.
5.6 x 12.5mm (1/4 x 1/2") microphone head
1.5g (0.04 oz) microphone head
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