Sony ECM-44BC Omni-Directional Electret Condenser Microphone with SMC9-4P Connector

Sony has produced over five million professional ECM (Electret Condenser Microphones) microphones and the ECM-44 is the affordable, general voice model. It provides good sound quality and is widely used in business presentation systems and TV production. The ECM-44 is available in four versions, featuring different connector types. This model, the ECM-44BC, has a 4-pin locking plug for use with bodypack transmitters that use the SMC9-4P connector.

Convenient to use
The ECM-44 is an affordable alternative to the traditional hand-held microphone and being 'hands free' it allows the presenter to concentrate on her/his performance.

Professional image
Either 'in front of camera' or at a business presentation the ECM-44 creates a professional and tidy image.

Easy to use
It can often be difficult to achieve good quality voice pick-up but the ECM-44 can help get good results. The microphone's capsule is designed for general voice pick-up with a mid-frequency emphasis characteristic and a suitable frequency response.

Key Features

• The ECM-44's capsule features an emphasis curve and a suitable frequency response for voice pick-up.
• The ECM-44BC is compatible with bodypack transmitters that use the SMC9-4P connector. It is easy to configure the ECM-44 in an affordable wireless microphone system for use with a Camcorder or in a presentation system.
• The capsule has a diameter of only 8.5mm and is 14.5mm long.

Technical Specifications

Audio Section
Capsule Type
Electret Condenser
Frequency Response
40 Hz to 15 kHz
Directivity
Omni-directional
Sensitivity *<1>
-40.0 dB (10 mV)
Output Impedance *<2>
2.5k OHMS±30%, Unbalanced
Dynamic Range
90 dB or more
Signal-to-Noise Ratio *<3>
62 dB or more
Inherent Noise *<4>
32 dB SPL or less
Induction Noise from External Magnetic Field *<5>
5 dB SPL or less
Wind Noise *<6>
40 dB SPL or less (with windscreen)
Maximum Input Sound Pressure Level *<7>
122 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 10.0V
Power Consumption
0.4 mA or less
Dimensions *<8>
φ8.5 x 14.5 mm (Mic head)
φ11/32 x 19/32 inches (Mic head)
Approx. 24 g
Approx. 0.8 oz
Supplied Accessories
Urethane type windscreen (1)
Single/horizontal type tie clip (1)
Operating instructions (1)
Mic case (1)
Optional Accessories
Wind screen pack
Horizontal single-clip pack
Notes
*<1> 0 dB = 1 V/Pa, at 1 kHz
*<2> Output impedance at 1 kHz
*<3> A-weighted, 1 kHz, 1 Pa.
*<4> 0 dB SPL = 20 μPa.
*<5> dB SPL/1E-7 T, 0 dB SPL = 20 μPa.
*<6> Wind noise at 6.56 ft/s (0 dB SPL = 20 μPa.)
*<7> 0 dB SPL = 20 μPa.
*<8> The values for dimensions are approximate.