Audio-Technica U857R Audio-Technica U857R
Audio-Technica U857R Audio-Technica U857R

Audio-Technica U857R

Cardioid Condenser Gooseneck Microphone, 12.01" Long

MFR # U857R
UPC # 042005140770
Discontinued
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Audio-Technica U857R
Designed for flexible performance in boardroom, school, government, house of worship and other installed applications, the high-performance U857R features a small-diameter gooseneck with virtually no "memory." Its ultra-flexible, robust design permits easy adjustment into desired shape while resisting inadvertent repositioning. This cardioid condenser adapter-mount gooseneck microphone direct mounts to any 5/8"-27 stand; it is 16.58" long. Equipped with UniGuard innovations that offer unsurpassed immunity from radio frequency interference, the U857R accepts interchangeable elements, available in cardioid, hypercardioid, omnidirectional and UniLine line cardioid polar patterns. The phantom-powered microphone also offers an 80 Hz low-cut UniSteep filter that reduces pickup of low-frequency ambient noise.

Features

  • Designed for high-quality sound reinforcement, professional recording and broadcasting

  • 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


Specifications

  • ELEMENT: Fixed-charge back plate, permanently polarized condenser

  • POLAR PATTERN: Cardioid

  • FREQUENCY RESPONSE: 30-20,000 Hz

  • LOW FREQUENCY ROLL-OFF: 80 Hz, 18 dB/octave

  • OPEN CIRCUIT SENSITIVITY: -39 dB (11.2 mV) re 1V at 1 Pa

  • IMPEDANCE: 250 ohms

  • MAXIMUM INPUT SOUND LEVEL: 139 dB SPL, 1 kHz at 1% T.H.D.

  • DYNAMIC RANGE (typical): 115 dB, 1 kHz at Max SPL

  • SIGNAL-TO-NOISE RATIO: 70 dB, 1 kHz at 1 Pa

  • PHANTOM POWER REQUIREMENTS: 11-52V DC, 2 mA typical

  • SWITCH: Flat, roll-off

  • WEIGHT (MICROPHONE): 4.4 oz (124 g)

  • WEIGHT (POWER MODULE): 2.9 oz (81 g)

  • DIMENSIONS (MICROPHONE): 12.01" (305.0 mm) long, 0.48" (12.2 mm) head diameter

  • DIMENSIONS (POWER MODULE): 3.66" (92.9 mm) long, 0.74" (18.9 mm) diameter

  • OUTPUT CONNECTOR (POWER MODULE): Integral 3-pin XLRM-type

  • 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

  • OPTIONAL INTERCHANGEABLE ELEMENTS: UE-H hypercardioid (100); UE-O omnidirectional (360); UE-UL UniLine (90)

  • ACCESSORIES FURNISHED: AT8538 power module; AT8663 A-mount flange; AT8664 A-mount cable pass-through adapter; AT8153 two-stage foam windscreen

  • AUDIO-TECHNICA CASE STYLE: M2

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From a beginning in state-of-the-art phono cartridges, Audio-Technica has expanded over the years into high-performance headphones, microphones, mixers and electronic products for home and professional use. In each new area the goal has been to create innovative, problem-solving products
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