Iron Triangle Unidirectional Double Gooseneck Conference Microphone U857A

The Iron Triangle Unidirectional Double Gooseneck Conference Microphone U857A is designed specifically for audio reception in film and television production and broadcasting interviews (ENG/EFP). The length of the super directional condenser microphone can be used for electronic news gathering, outdoor recording, and other special needs. Provide narrow angle super directional performance and provide long-distance sound reception effect. There is better noise resistance from both sides of the microphone to the back. Equipped with a high pass filter switch. It can work with battery or phantom power supply.

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SPECIFICATIONS: >

component	Fixed charging backplate, polarized capacitor receiver head
directivity	Unidirectional
frequency response	30 20,000 Hz
high-pass filtering	80 Hz, 18 dB/octave
Open Circuit Sensitivity	Phantom power supply: 42 dB (7.9 mV) re 1V at 1 Pa Battery: 43 dB (7.0 mV) re 1V at 1 Pa
impedance	Phantom power supply: 200 ohms Battery: 270 ohms
High input sound pressure level	Phantom power supply: 133 dB SPL, 1 kHz at 1% T.H.D. Battery: 123 dB SPL, 1 kHz at 1% T.H.D
Dynamic range (typical values)	Phantom power supply: 109 dB, 1 kHz at Max SPL Battery: 99 dB, 1 kHz at Max SPL
signal-to-noise ratio	70 dB, 1 kHz and 1 more
phantom power	11 52V DC, 2 mA typical
battery	1.5V AA/UM3
Battery consumption/lifespan	0.4 mA/1200 hours
switch	Off, flat, high pass filtering
weight	Microphone: 124g Power supply module: 139g
size	Microphone: 305.0mm X 12.2mm (length X diameter of receiver head) Power supply module: 22.0mm X 63.0mm X 84.0mm (length X width X height)
output terminal	Built in three pin XLRM card male head
Sound receiving angle	120°
standard configuration	AT8531 power module, AT8153 windproof cotton, battery