ECM-77BC (ECM77BC)

Discrete omni-directional lapel Electret condenser microphone

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Overview

The ECM-77 is probably the most often seen lapel microphone on TV and it is used widely 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. This microphone is the ECM-77BC supplied with a 4-pin locking plug for use with WRT-822 and WRT-8B wireless transmitters
Hands Free
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.
Professional Image
The ECM-77 is probably the most seen microphone on TV and its compact design creates a professional image.
Easy and Familiar Operation
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.

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.

Specifications

Audio Section
Capsule Type
Electret Condenser
Frequency Response
40 Hz to 20 kHz
Directivity
Omni-directional
Sensitivity *[1]
-39.0 dB (11.2 mV)
Output Impedance *[2]
2.5kΩ±30%, Unbalanced
Dynamic Range
90d B or more
Signal-to-Noise Ratio *[3]
64 dB or more
Inherent Noise *[4]
30 dB SPL or less
Induction Noise From External Magnetic Field *[5]
5 dB SPL or less
Wind Noise *[6]
40 dB SPL or less (with windscreen)
Maximum Input Sound Pressure Level *[7]
120 dB SPL
General Section
Connector
BC type. Supplied with Sony 4-pin (SMC9-4P) connector
Mic Cable
3.9 feet
1.2 m
Power Requirements
DC 1.1 V to 10.0V
Power Consumption
0.4 mA or less
Dimensions *[8]
φ5.6 X 12.5 mm (Mic head)
φ1/4 X 1/2 inches (Mic head)
Mass
Approx. 25.5 g
Approx. 0.9 oz
Supplied Accessories
Single/horizontal type tie clip (1)
Metal-mesh type windscreen (1)
Optional Accessories
Wind screen pack
Vertical clip pack
Safety pin type clip pack
Horizontal double-clip pack
Horizontal single-clip pack
ECM-77 accessory kit
Colored wind screen kit
Black windscreen for ECM-77
Notes
Note
*[1] 0 dB = 1 V/Pa, at 1 kHz
*[2] Output impedance at 1 kHz
*[3] A-weighted, 1 kHz, 1 Pa.
*[4] 0dB SPL = 20? Pa.
*[5] dB SPL/1E-7 T, 0 dB SPL = 20? Pa.
*[6] Wind noise at 2m/s (0 dB SPL = 20?Pa.)
*[8] The values for dimensions are approximate.