Cardioid Condenser Quick-Mount Gooseneck Microphone

$329 + shipping (includes gst)

Ideal for conference centers, boardrooms, courtrooms, houses of worship, and other installed applications, the U857Q is designed to plug directly into a panel- or desk-mounted XLRF-type connector. This cardioid condenser quick-mount gooseneck microphone offers unsurpassed immunity from radio frequency interference thanks to Audio-Technica’s UniGuard® innovations. Equipped with self-contained electronics, the phantom-powered microphone also offers an 80 Hz low-cut UniSteep® filter that reduces pickup of low-frequency ambient noise.

Featuring an ultra-flexible small-diameter gooseneck and accepts interchangeable elements –  available in cardioid, hypercardioid, omnidirectional and UniLine® line cardioid polar patterns.

NOTE – AT8662 Shock Mount sold separately


  • 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
  • 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


Mini shotgun/UniLine condenser 487mm gooseneck/XLR-mount (NOTE: AT8662 NOT included)


Fixed-charge back plate, permanently polarized condenser

Polar Pattern


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


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


Flat, roll-off


5.1 oz (144 g)


14.37″ (365.0 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-H hypercardioid (100°); 
UE-O omnidirectional (360°); 
UE-UL UniLine® (90°)

Accessories Furnished

AT8153 two-stage foam windscreen

Audio-Technica Case Style


Polar Pattern
Frequency Response
U857Q/QL Spec Sheet (PDF) Download
U857Q/QL Submittal Sheet (PDF) Download

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