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Audio Technica U857AU


U-857AU Unipoint Gooseneck Microphone UniLine Condenser, RFI-Shielded, 3-Pin XLRM Connector

Product Code 40239

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Audio Technica

Audio Technica Microphone - Unipoint Gooseneck Microphone - U857AU UniLine™ Condenser, RFI-Shielded, 3-Pin XLRM Connector, 200 ohms, Phantom Power, Designed for high-quality sound reinforcement, Easy-to-adjust, rugged, small-diameter.

The U857AU incorporates the most essential ingredients for quality sound reproduction for a wide range of installed applications. Equipped with A-T's UniLine™ 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™ innovations that offer unsurpassed immunity from radio frequency interference, the U857AU accepts interchangeable elements, available in cardioid, hypercardioid, omnidirectional and UniLine™ 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.

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Designed for high-quality sound reinforcement, professional recording and broadcasting
UniLine™ polar pattern provides narrow 90º acceptance angle
Superior off-axis rejection for maximum gain before feedback
UniGuard™ RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)
Easy-to-adjust, rugged, small-diameter, alternating gooseneck with virtually no "memory" permits quick positioning into desired shape
UniSteep® filter provides a steep low-frequency attenuation to improve sound pickup without affecting voice quality
Accepts interchangeable elements to permit angle of acceptance from 90° to 360°
Two-stage foam windscreen yields dramatically improved resistance to P-pops and other breath blasts
Direct mounts to any 5/8"-27 stand, or to included threaded mounting flange
Operates on battery or phantom power

Element Fixed-charge back plate, permanently polarized condenser
Polar Pattern Line cardioid
Frequency Response 30-20,000 Hz
Low Frequency Roll-Off 80 Hz, 18 dB/octave
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
Impedance Phantom: 200 ohms Battery: 270 ohms
Signal-To-Noise Ratio 74 dB, 1 kHz at 1 Pa
Battery Type 1.5V AA/UM3
Switch Off, on-flat, on-roll-off
Output Connector (Power Module) Integral 3-pin XLRM-type
Dynamic Range (Typical) Phantom: 110 dB, 1 kHz at Max SPL Battery: 100 dB, 1 kHz at Max SPL
Weight (Microphone) 5.0 oz (141 g)
Weight (Power Module) 4.9 oz (139 g)
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

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