Sony ECM-674 Electret Condenser Microphone

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Product Information

Sony ECM-674 Electret Condenser Microphone

The Sony ECM-674 Mic is an affordable shotgun-type electret condenser microphone which delivers excellent sound performance in field and studio productions.

Flat-and-wide Frequency Response

The ECM-674 microphone has a flat-and-wide frequency response (40 Hz to 20 kHz) and provides sound reproduction that is extremely smooth and natural
Compact and Lightweight Design

The ECM-674 has been designed as a highly directional compact and lightweight shotgun microphone. It measures only 268 mm (10 5/8 inches) in length and weighs just 185 g (6.5 oz), maintaining good balance even when mounted on compact camcorders.

Built-in Low Cut Filter

The built-in two-position (M, V) low-cut switch provides users with a simple method of reducing the effects of undesired ambient noise.
Superb Sound Quality

The ECM-674 offers an excellent sensitivity of -36 dB (0 dB=1 V/Pa.) and low inherent-noise level of less than 17 dB SPL. This allows the microphone to be used for clear voice pick-up even in noisy environments

Two-way Powering

A two-way powering capability allows the ECM-674 to be driven by microphone power or batteries, making it suitable for both camcorder mounting and many other sound-gathering applications. Internal: AA-size battery operation. External: DC (40 to 52 V) operation

Built-in Battery Liquid Leakage Protection Circuit

In general, old batteries can leak and damage the equipment they are used in. The ECM-674 prevents this by continually detecting the output voltage of the battery and shutting off the power supplied to the electric circuit whenever the voltage drops beneath a certain threshold.

  • Flat-and-wide Frequency Response
  • Compact and Lightweight Design
  • Superb Sound Quality
  • Built-in Low Cut Filter
Capsule TypeElectret condenser
DirectivityUni-directional (super-cardioid)
Frequency Response40 Hz to 20 kHz
Sensitivity (at 1 kHz)-36 dB(*1) ±3 dB
Output impedance (at 1 kHz)220 Ω ±20%
Dynamic rangePhantom: 107 dB or more, Battery: 98 dB or more
Signal-to-noise ratio77 dB or more (IEC179 A-weighted, 1 kHz, 1Pa.)
Inherent noise17 dB SPL(*2) or less
Wind noise50 dB SPL(*2) or less (with windscreen)
Induction noise from external magnetic field0 dB SPL(*2) or less
Maximum input sound pressure levelPhantom: 124 dB SPL (*2), Battery: 115 dB SPL (*2)
Power requirementsExternal: DC 40 to 52 V, Battery: 1.5 V
Dimensions20 dia. x 268 mm (13/16 dia. x 10 5/8 inches)
MassApprox. 185 g (6.5 oz) without battery Approx. 208 g (7.3 oz) with battery
Note(*1) 0 dB=1 V/Pa., at 1 kHz (*2) 0 dB=20µ Pa.