Sony ECM-44B Omnidirectional Electret Condenser Lavalier Microphone

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, ECM-44B, is the XLR version with power barrel for use as a wired microphone.

Key Features

• The ECM-44's capsule features an emphasis curve and a suitable frequency response for voice pick-up
• The capsule has a diameter of only 8.5mm and is 14.5mm long
• The ECM-44B is the wired version with an XLR output and integral power supply barrel
• This version can either be powered by an external microphone amp or internally by battery (LR6 or AA size)
• A single AA battery will provide several thousand hours of use

Technical Specifications

Audio Section
Capsule Type
Electret Condenser
Frequency Response
40 Hz to 15kHz
Directivity
Omni-directional
Sensitivity *<1>
-53.0 dB -3 dB
Output Impedance *<2>
25020%, 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
Connector
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)
Power Consumption
0.3 mA or less
Dimensions *<8>
8.5 x 14.5 mm (Mic head)
20.0 x 126 mm (Power unit XLR type)
13/16 x 5 inches (Power unit XLR type)
11/32 x 19/32 inches (Mic head)
Mass
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)

Installation / Use Cases

• General voice pickup using an omnidirectional electret condenser lavalier microphone
• Business presentation systems requiring a wired lavalier microphone with XLR output
• TV production workflows using a compact 8.5 mm x 14.5 mm microphone capsule
• Voice recording applications using an emphasis curve and frequency response suitable for voice pickup
• Wired microphone setups requiring an integral power supply barrel
• Battery-powered operation using a single AA battery