Sony ECM-680S (ECM680S) MS Stereo electret condenser microphone with internal A-B stereo decoder

The Sony ECM-680S is an MS stereo* shotgun, electret condenser-type microphone, ideal for a broad range of field production and broadcast studio applications. Incorporating newly developed microphone capsules, the ECM-680S offers excellent sensitivity, low inherent noise, and a flat-and wide frequency response. The most distinguished feature of the ECM-680S is its switchable operation between a highly directional monaural mode and stereo mode.

Monaural mode provides highly directional sound pickup, while stereo mode delivers natural and spatial sound. The ECM-680S is compact and lightweight, making it well-suited to use with a range of Sony professional camcorders. In addition, it can be mounted on a boom pole for more versatility. With its excellent quality and versatility, the ECM-680S is an ideal choice for quality-conscious sound gathering applications.

* MS microphone signal of th e ECM- 680S is internally decoded to L and R (stereo) outputs

Capsule type 

Electret condenser

Stereo type  

MS (Mid-Side) stereo microphone

Directivity
   

Uni-directional

Frequency response
   

Stereo: 50 Hz to 20 kHz
Monaural: 40 Hz to 20 kHz

Sensitivity (at 1 kHz)

Stereo: -28 dB(*1) ±3 dB
Monaural: -32 dB(*1) ±3 dB

Output impedance (at 1 kHz)
   

100 ohms ±20%

Dynamic range
   

Stereo: 104 dB or more
Monaural: 106 dB or more

Signal-to-noise ratio (IEC179 A-weighted, 1 kHz, 1Pa)
   

Stereo: 74 dB or more
Monaural: 76 dB or more

Inherent noise
   

20 dB SPL(*2) or less

Wind noise
   

60 dB SPL(*2) or less (with windscreen), 55 dB SPL(*2) (without windscreen)

Induction noise from external magnetic field

0 dB SPL(*2) or less

Maximum input sound pressure level
   

124 dB SPL(*2)

Power requirements
   

DC 40 to 52 V

Power consumption
   

Stereo: 4 mA or less x 2ch
Monaural: 4 mA or less

Mass

Approx. 140 g (4.9 oz)

Dimensions

20 mm diameter x 250 mm long

(*1) 0 dB=1 V/Pa, at 1 kHz (*2) 0 dB=20 µPa