The 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.
In the Box
Sony ECM-77B - Miniature Omni-directional Lavalier Condenser Microphone
Protective Carrying Case
1 Year Warranty
Table of Contents
Show moreShow less
40 Hz - 20 kHz
Dynamic Range (Typical)
> 90 dB
64 dB, (@ 1 kHz)
Maximum Input Sound Level
120 dB, (@ 1 kHz, 1% THD)
'AA' Battery (1.5v DC), or Phantom Power 48v DC
150 Ohms, (+/-20%, 1 kHz Balanced)
Low Frequency Roll-Off
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)