ECM-77LM Miniature Omni-directional electret condenser microphone
User Manual
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 |
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. |
DWT-B03R
DWX Series digital wireless microphone bodypack transmitter
Gallery
© 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.
