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UniPoint Review - Sound & Video Contractor
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U857RU, U857RLU Specification Sheet
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U857RU & U857RLU Submittal Sheet
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U857RU UniLine® Condenser Adapter-mount Gooseneck Microphone

Featuring Audio-Technica’s UniLine™ line-cardioid element, the U857RU adapter-mount gooseneck condenser microphone has a small-diameter gooseneck with virtually no “memory.” Its ultra-flexible, robust design permits easy adjustment into desired shape while resisting inadvertent repositioning. The microphone direct mounts to any 5/8"-27 stand; it is 16.81” long. Equipped with UniGuard® innovations that offer unsurpassed immunity from radio frequency interference, the U857RU 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.

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

  • UniLine® polar pattern provides narrow 90° 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


SPECIFICATIONS
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 –35 dB (17.7 mV) re 1V at 1 Pa
IMPEDANCE 250 ohms
MAXIMUM INPUT SOUND LEVEL 135 dB SPL, 1 kHz at 1% T.H.D.
DYNAMIC RANGE (typical) 115 dB, 1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO 74 dB, 1 kHz at 1 Pa
PHANTOM POWER REQUIREMENTS 11-52V DC, 2 mA typical
SWITCH Flat, roll-off
WEIGHT 5.0 oz (141 g)
WEIGHT (POWER MODULE) 2.9 oz (81 g)
DIMENSIONS (MICROPHONE) 16.81" (427.0 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-C cardioid (120°);
UE-H hypercardioid (100°);
UE-O omnidirectional (360°)
ACCESSORIES FURNISHED AT8538 power module; AT8663 A-mount flange; AT8664 A-mount cable pass-through adapter; AT8154 two-stage foam windscreen
AUDIO-TECHNICA CASE STYLE M33


SPECIFICATION GRAPHS
Click on the chart to view the larger image
POLAR PATTERN
POLAR PATTERN
FREQUENCY RESPONSE
FREQUENCY RESPONSE



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U857RU : UniLine® Condenser Adapter-mount Gooseneck Microphone
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U857RU : UniLine® Condenser Adapter-mount Gooseneck Microphone

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