ECM-90BC (ECM90BC)

Electret condenser microphone

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Overview

Ultra-miniature, omni-directional electret condenser lavalier microphone designed for quality-critical applications in ENG, Studio, EFP, and Location Sound applications. Dual diaphragm design contributes to high sensitivity, wide dynamic range, and low noise. Generous diaphragm mounting architecture radically reduces common cable noise associated with lavalier microphone designs. Flat and wide frequency response (20Hz – 20kHz) provides natural sound reproduction. Water resistant design maintains sound clarity in almost any application or environment. Shielded for use with digital wireless transmitters.

Specifications

Audio Section
Capsule Type
Electret Condenser
Frequency Response
20 Hz to 20 kHz
Directivity
Omni-directional
Sensitivity *[1]
-38 dB (12.6mV)
Output Impedance *[2]
2.5 kΩ (unbalanced)
Dynamic Range (typ.)
99 dB
Signal-to-Noise Ratio (typ.) *[3]
68 dB
Inherent Noise (typ.) *[4]
26 dB SPL
Wind Noise *[5]
45 dB SPL or less (with supplied windscreen)
Maximum Input Sound Pressure Level (typ.) *[6]
125 dB SPL
General Section
Connector
BC type. Supplied with Sony 4-pin (SMC9-4P) connector
Mic Cable
3.9 feet
1.2 m
Power Requirements
DC 1.1 V to 10.0 V
Dimensions *[7]
5/32 x 5/32 x 21/26 inches (Mic head)
3.5 x 3.5 x 20.5 mm (Mic head)
Mass (microphone body, excluding cable)
Approx. 0.035oz
Approx. 1g
Supplied Accessories
Urethane type windscreen (1)
Single/vertical type tie clip (1)
Single/horisontal type tie clip (1)
Operating instructions (1)
Optional Accessories
Wind screen pack
Vertical clip pack
Safety clip pack
Horizontal clip pack
Double clip pack
Color windscreen pack
Black windscreen pack
Accessory kit
Notes
*[1]
0 dB = 1 V/Pa, at 1 kHz
*[2]
Output impedance at 1 kHz
*[3]
A-weighted, 1 kHz, 1 Pa.
*[4]
0dB SPL = 2E-5 Pa.
*[5]
Wind noise at 2m/s (0 dB SPL = 20?Pa.)
*[6]
0dB SPL = 2E-5 Pa.
*[7]
The values for dimensions are approximate.