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UniLne™ Cond. Quick-Mount Gooseneck Mic.

  • 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, smalldimeter, 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.
  • Optional shock mount attenuates noise, shock and vibration transmitted through the mounting surface.

    • audio technica U857QLU
    • audio technica U857QLU
    • audio technica U857QLU
  • U857QLU Specifications


    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


    250 Ω

    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

    11-52V DC, 2 mA typical


    Flat, roll-off


    167 g


    603.0mm X 12.2mm (long X Head Diameter)

    Output Connector

    Integral 3-pin XLRM-type

    Accessories Furnished

    AT8154 two-stage foam windscreen


    audio technica support U857QLU_OM.pdf - Operation Manual