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Sony ECM-44B Electret Condenser Microphones


Original price was: $1,800.00.Current price is: $1,650.00.


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.


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.

Tuned for voice pick-up

The ECM-44's capsule features an emphasis curve and a suitable frequency response for voice pick-up.

Compact size

The capsule has a diameter of only 8.5mm and is 14.5mm long.

Ready for wireless systems

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.

ECM-44 series
Lavalier microphones
• Uni-directional, electret condenser microphone
• Resistant to howling by rejecting indirect sound
• Ideal for institutional use and sound-contracting applications
such as speeches, lectures, and conferences
• Designed for a wide range of applications from voice to
instrumental recording
• Wide dynamic range (101 dB), and high maximum
input-sound-pressure level (130 dB SPL)
• Low inherent-noise characteristics
• DC 1.1 V to 10.0 V


Capsule Type
Electret Condenser
Frequency Response
40 Hz to 15kHz
Sensitivity *[1]
-53.0 dB ±3 dB
Output Impedance *[2]
250Ω±20%, Balanced
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

B type. Supplied with XLR-3-12C (male) connector in power supply unit (single AA size battery)
Mic Cable
9.8 feet
3 m
Power Requirements
Phamtom Power Not Supported
DC 1.5 V (AA size battery)
Battery Operating Time
Approx. 6000 h (LR6)
0.3 mA or less
Dimensions *[8]
φ8.5 x 14.5 mm (Mic head)
φ20.0 x 126 mm (Power unit XLR type)
φ13/16 x 5 inches (Power unit XLR type)
φ11/32 x 19/32 inches (Mic head)
Approx. 4.3 oz (with power supply unit)
Approx. 121 g (with power supply unit)
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


*[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 2m/s (0 dB SPL = 20 μPa.)
*[7] 0 dB SPL = 20 μPa.
*[8] The values for dimensions are approximate.