Sony ECM-77B is a miniature omni-directional lavalier microphone designed
for professional broadcast, sound reinforcement and recording applications.
The condenser element features a miniature profile allowing it to be easily
concealed in performance and broadcast situations. The omni-directional pattern
provides even frequency and sensitivity response at the direct and off-axis
sections of the microphone capsule.
The ECM-77 provides a wide frequency response of 40Hz – 20kHz. The wide frequency
response enables the microphone to accurately reproduce audio signal from a
wide variety of sources. The ECM-77B is powered with an external 48 Volt phantom
power source or AA alkaline battery. The ECM-77B is manufactured with a variety
of connectors to accommodate various input devices, this version features a
standard 3-pin XLR male connection.
The omni-directional pattern provides even sensitivity and frequency response
at the direct and off-axis sections of the microphone capsule.
The ECM-77B is powered with a single AA alkaline battery or external 48 volt
phantom power source.
The miniature, unobtrusive profile enables the microphone to be easily concealed
in broadcast and performance situations.
Standard XLR Connection
The ECM series is available in a variety of connections, this version features
a standard 3-pin XLR male connection.
Frequency Response: 40 Hz – 20 kHz
Dynamic Range (Typical): > 90 dB
Signal-to-Noise Ratio: 64 dB, (@ 1 kHz)
Maximum Input Sound Level: 120 dB, (@ 1 kHz, 1% THD)
Power Requirements: ‘AA’ Battery (1.5v DC), or Phantom Power 48v DC
Output Impedance: 150 Ohms, (+/-20%, 1 kHz Balanced)
Output Connectors: XLR-3M Type
Low Frequency Roll-Off: None
Applications: Radio, Television and Broadcast.
Microphone: .5 x .25″ (12.5 x 5.6mm) LxDiameter
Power supply: 5.25 x .82 (131.5 x 20mm) LxW
Cable: 10′ x .09″ (3m x 2.3mm) LxW
Microphone: 0.053 oz. (1.5 g)
Power Supply: 4.2 oz. (120 g)