The ECM-674 is a two-way powered shotgun, electret condenser-type microphone, which delivers excellent sound performance in field and studio production applications at an affordable price.
The ECM-674 offers an excellent sensitivity and a low inherent-noise level. It has a flat-and-wide frequency response and delivers extremely smooth and natural sound reproduction.
A two-way powering capability allows the ECM-674 to be driven by microphone power or batteries, making it suitable for both camcorder mounting and many other sound-gathering applications. Internal: AA-size battery operation. External: DC (40 to 52 V) operation.
In general, old batteries can leak and damage the equipment they are used in. The ECM-674 prevents this by continually detecting the output voltage of the battery and shutting off the power supplied to the electric circuit whenever the voltage drops beneath a certain threshold.
The built-in two-position (M, V) low-cut switch on the ECM-674 provides a simple method of reducing the effects of unwanted ambient noise.
|Capsule Type||Mono Electret Condenser|
|Frequency Response||40 Hz to 20 kHz|
|Sensitivity *||-36 dB ±3 dB|
|Output Impedance *||220Ω±20%, Balanced|
|Dynamic Range||Phantom: 107 dB or more|
Battery: 98 dB or more
|Signal-to-Noise Ratio *||77 dB or more|
|Inherent Noise *||17 dB SPL or less|
|Induction Noise From External Magnetic Field *||0 dB SPL or less|
|Wind Noise *||50 dB SPL (without windscreen)|
45 dB SPL or less (with windscreen)
|Maximum Input Sound Pressure Level *||Phantom: 124 dB SPL|
Battery: 115 dB SPL
|Mic Cable||XLR-3 to XLR-3 500 mm 19.6 inches|
|Power Requirements||External: DC 40 V to 52 V
Battery: 1.5 V
|Dimensions *||φ20 x 200 mm|
φ13/16 x 7 7/8 inches
|Mass||Approx. 7.3 oz with battery|
Approx. 6.5 oz without battery
Approx. 208 g with battery
Approx. 185 g without battery
|Supplied Accessories||Windscreen (1)|
Stand adaptor (2)
Short XLR cable
Operating instructions (1)
Mic spacer (2)
Mic holder (1)
|Notes||* 0 dB = 1 V/Pa, at 1 kHz
* Output impedance at 1 kHz
* A-weighted, 1 kHz, 1 Pa.
* 0dB SPL = 20µ Pa
* dB SPL/1E-7 T, 0 dB SPL = 20µ Pa.
* Wind noise at 2m/s (0 dB SPL = 20µPa.)
* 0 dB SPL = 20? Pa
* Dimensions are approximate