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Audio-Technica AT-U857QLU (U857QLU) Microphone

23.74-inch Cardioid Condenser Quick-Mount Gooseneck Mic

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What's in the box:

  • Audio-Technica U857QLU Gooseneck Microphone with UniLine Series Cardioid Micropone Capsule (23") (Phantom Only)
  • Phantom Power Only
  • AT8154 Foam Windscreen
  • AT8662 UniPoint Shock Mount
  • 1 Year Warranty

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Easy-to-adjust gooseneck with virtually no memory permits quick positioning into desired shape

    With advanced capsule design coupled with carefully engineered internal electronics, The U857QLU UniLine™ condenser microphone from Audio-Technica delivers clear, consistent sound for a variety of installed applications. The 23.74 inch version of U857QU, the U857QLU features Audio-Technica's UniLine™ line-cardioid element.

    The U857QLU microphone is designed to plug directly into a panel- or desk-mounted XLRF-type connector. Its ultra-flexible, robust gooseneck permits easy adjustment into desired shape while resisting inadvertent repositioning. Featuring UniGuard™ innovations that offer unsurpassed immunity from radio frequency interference, the U857QLU accepts new 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
  • Self-contained electronics eliminate need for external power module
  • 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
  • Quick-mount design with 3-pin XLRM-type connector insert at base plugs into any standard XLRF-type surface or cable connector
  • Included shock mount attenuates noise, shock and vibration transmitted through the mounting surface

Specifications for the Audio-Technica AT-U857QLU

{ "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" : "5.9 oz (167 g)", "DIMENSIONS" : [ "23.74" (603.0 mm) long, ", "0.48" (12.2 mm) head diameter, ", "0.74" (18.9 mm) base diameter" ], "OUTPUT CONNECTOR" : "Integral 3-pin XLRM-type", "OPTIONAL INTERCHANGEABLE ELEMENTS" : [ "UE-C cardioid (120°); ", "UE-H hypercardioid (100°)", "UE-O omnidirectional (360°)" ], "ACCESSORIES FURNISHED" : [ "AT8154 two-stage foam windscreen", "AT8662 shock mount" ], "AUDIO-TECHNICA CASE STYLE" : "M35" }

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