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Audio Technica U857AU UniLine Condenser Adapter-Mount Gooseneck Microphone.

£252.00 £210.00 (ex. vat)

Audio Technica U857AU

  • Audio Technica U857AU

Audio Technica U857AU

The Audio-Technica U857AU is an adapter mount gooseneck microphone which incorporates the most essential ingredients for quality sound reproduction for a wide range of installed applications. Equipped with Audio-Technica'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.

Audio Technica U857AU Features

  • 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
  • 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.
  • Dynamic Range: Phantom: 110 dB, 1 kHz at Max SPL Battery: 100 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
  • Battery Type: 1.5V AA/UM3
  • Battery Current Life: 0.4 mA / 1200 hours typical (alkaline)
  • Switch: Off, on-flat, on-roll-off
  • 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
  • Accessories: AT8531 power module; AT8154 two-stage foam windscreen; AT8663 A-mount flange; AT8664 A-mount cable pass-through adapter; battery

View on the Audio Technica Europe Website.

Manufacturer Audio Technica
Model U857AU
GTIN 5055145725061
Audio Technica
Audio Technica
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