SONY ECM-77LM Miniature omni-directional electret condenser microphone User Manual

June 5, 2024
Sony

ECM-77LM Miniature Omni-directional electret condenser microphone
**User Manual

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ECM-77LM Miniature omni-directional electret condenser microphone

ECM-77LM
Miniature Omni-directional electret condenser microphone

Overview

Lavalier mic with excellent sound quality, ideal for use with DWTB03R wireless transmitter
The Sony ECM-77 miniature lavalier microphone is seen in daily use on TV shows around the world and is an equally familiar sight in both studio-based productions and on location.
A discreet ‘hands-free’ alternative to handheld microphones, its popularity is due to a combination of excellent sound quality, robust construction, and an attractive cosmetic design. The miniature design of the ECM-77 makes it easy to conceal in a stage performer’s costume.
The electret condenser microphone’s omnidirectional capsule is optimized for clear speech pick-up, with extended frequency response, impressive sensitivity, and low handling noise.
Featuring a 3-pin Lemo connector, this ECM-77LM version is an ideal partner for use with the DWT-B03R DWX Series digital wireless microphone bodypack transmitter.

© 2004 – 2022 Sony Corporation. All rights reserved. Reproduction in whole or in part without written permission is prohibited. Features and specifications are subject to change without notice. The values for mass and dimension are approximate. All trademarks are the property of their respective owners.

Specifications

Audio Section

Capsule Type Electret Condenser
Frequency Response 40 Hz to 20 kHz
Directivity Omni-directional
Sensitivity *[1] [7] -39.0 dB
Output Impedance *[2] [7] 6.3k ± 30%, Unbalanced
Dynamic Range 95 dB or more
Signal-to-Noise Ratio *[3] 64dB (typ.)
Inherent Noise *[4] 32 dB SPL or less
Induction Noise From External 5 dB SPL or less Magnetic Field *[5]
Wind Noise *[6] 40 dB SPL or less (with windscreen)
Maximum Input Sound Pressure Level *[7] 127 dB SPL
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General Section

Connector Small 3-pin connector
Mic Cable 5.25 feet 1.6 m
Power Requirements DC 3.0 V to 10.0V
Power Consumption 0.4 mA or less
Dimensions *[8] 5.6 X 12.5 mm (Mic head) 1/4 X 1/2 inches (Mic head)
Mass Approx. 1.5 g (without cable) Approx. 0.053 oz (without cable)
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| [1] 0 dB = 1 V/Pa, at 1 kHz [2] Output impedance at 1 kHz [3] IEC 179,A-weighted, 1 kHz, 1 Pa. [4] 0dB = 20 Pa [5] dB SPL/1E-7 T [6] Wind noise at 2m/s (0 dB SPL = 20 Pa)[7] Vdd5.5V, RL8.2k [8] The values for dimensions are approximate.

Related products

DWT-B03R
DWX Series digital wireless microphone bodypack transmitter

**Gallery

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© 2004 – 2022 Sony Corporation. All rights reserved.
Reproduction in whole or in part without written permission is prohibited. Features and specifications are subject to change without notice. The values for mass and dimension are approximate. All trademarks are the property of their respective owners.

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