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-44BMP, has a 3.5mm locking jack for
use with WRT-805 wireless transmitter.
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
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.
Capsule Type Electret Condenser
Response 40 Hz to 15kHz
Sensitivity * -53.0 dB ±3
Output Impedance * 250O±20%,
Dynamic Range 90 dB or
Signal-to-Noise Ratio * 62 dB or
Inherent Noise * 32 dB SPL or
Induction Noise From External Magnetic Field * 5 dB
SPL or less
Wind Noise * 40 dB SPL or less (with
Maximum Input Sound Pressure Level * 122 dB