Audio Technica U857AU UniLine Gooseneck Lectern Mic

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Audio Technica U857AU UniLine Gooseneck Lectern Mic
Item# 235873

Audio TechnicaU857AU UniLine Gooseneck Lectern Mic

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$249.99

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$355.00

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Why Woodwind & Brasswind ?

The U857AU features a small-diameter gooseneck and A-T's UniLine(TM) line-cardioid element provides more pattern directivity and reduces feedback. It operates on battery or phantom power and is 16.81 inches long. It is equipped with UniGuard RFI-shielding innovations and a UniSteep® filter. Attaches to 5/8"-27 thread flange mount included.

Audio Technica U857AU UniLine gooseneck lectern mic

Audio-Technica's U857AU incorporates the most essential ingredients for quality sound reproduction for a wide range of installed applications. Equipped with A-T's UniLine(TM) line-cardioid element with a tightly focused 90º acceptance angle, the U857AU features a small-diameter gooseneck with virtually no "memory." Its ultra-flexible, robust design permits easy adjustment into desired shape while resisting inadvertent repositioning. The 16.81"-long UniLine condenser direct mounts to any 5/8"-27 stand. Featuring UniGuard(TM) innovations that offer unsurpassed immunity from radio frequency interference, the U857AU accepts interchangeable elements, available in cardioid, hypercardioid, omnidirectional and UniLine(TM) line cardioid polar patterns. The battery- or phantom-powered microphone also offers an 80 Hz low-cut UniSteep® filter that reduces pickup of low-frequency ambient noise.

Standard Features


ACCESSORIES FURNISHED	AT8531 power module; AT8154 two-stage foam windscreen; AT8663 A-mount flange; AT8664 A-mount cable pass-through adapter; battery
AUDIO-TECHNICA CASE STYLE	M33
BATTERY CURRENT / LIFE	0.4 mA / 1200 hours typical (alkaline)
BATTERY TYPE	1.5V AA/UM3
CABLE	9.8' (3.0 m) long (permanently attached to microphone), 0.13" (3.2 mm) diameter, 2-conductor shielded cable with TA3F-type connector
DIMENSIONS (MICROPHONE)	16.81" (427.0 mm) long, 0.48" (12.2 mm) head diameter
DIMENSIONS (POWER MODULE)	3.31" (84.0 mm) H x 2.48" (63.0 mm) W x 0.87" (22.0 mm) D
DYNAMIC RANGE (typical)	Phantom: 110 dB, 1 kHz at Max SPL Battery: 100 dB, 1 kHz at Max SPL
ELEMENT	Fixed-charge back plate, permanently polarized condenser
FREQUENCY RESPONSE	30-20,000 Hz
IMPEDANCE	Phantom: 200 ohms Battery: 270 ohms
LOW FREQUENCY ROLL-OFF	80 Hz, 18 dB/octave
MAXIMUM INPUT SOUND LEVEL	Phantom: 130 dB SPL, 1 kHz at 1% T.H.D. Battery: 120 dB SPL, 1 kHz at 1% T.H.D.
OPEN CIRCUIT SENSITIVITY	Phantom: –38 dB (12.5 mV) re 1V at 1 Pa Battery: –39 dB (11.2 mV) re 1V at 1 Pa
OPTIONAL INTERCHANGEABLE ELEMENTS	UE-C cardioid (120°); UE-H hypercardioid (100°); UE-O omnidirectional (360°)
OUTPUT CONNECTOR (POWER MODULE)	OUTPUT CONNECTOR (POWER MODULE)
PHANTOM POWER REQUIREMENTS	11-52V DC, 2 mA typical
POLAR PATTERN	Line cardioid
SIGNAL-TO-NOISE RATIO	74 dB, 1 kHz at 1 Pa
SWITCH	Off, on-flat, on-roll-off
WEIGHT (MICROPHONE)	5.0 oz (141 g)
WEIGHT (POWER MODULE)	4.9 oz (139 g)