Sony ECM-77BPT Discrete Omni-Directional Lavalier Electret Condenser Microphone

The ECM-77 is probably the most-often seen lavalier 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-77BPT, which is supplied with pre-solder bare wire ends. As a lavalier microphone, the ECM-77 is an alternative to the traditional hand-held microphone. Being "hands-free," it allows the presenter to concentrate on her/his performance.

Key Features

• The ECM-77's capsule features a voice emphasis curve, extended frequency response and sensitivity
• The capsule has a diameter of only 5.6mm and is 12.5mm long
• The ECM-77BPT version is supplied with pre-solder wire ends, allowing a convenient solution for interfacing the microphone with other types of connectors

Technical 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>
2.5k30%, Unbalanced
Dynamic Range
90 dB 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
Connector
No connector (Pigtail)
Mic Cable
9.8 feet
3 m
Power Requirements
DC 1.1 V to 10.0 V
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. 22.7 g
Approx. 0.8 oz
Supplied Accessories
Single/horizontal type tie clip (1)
Metal-mesh type windscreen (1)