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. Offering unsurpassed immunity from radio frequency interference thanks to Audio-Technica’s UniGuard® innovations, this quick-mount microphone features an ultra-flexible, small-diameter gooseneck and accepts interchangeable elements – omnidirectional (360°), cardioid (120°), hypercardioid (100°), and UniLine® (90°) – available separately. 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.
Key Features
- 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
- Included shock mount attenuates noise, shock and vibration transmitted through the mounting surface
Technical Specifications
Microphones |
Element |
Fixed-charge back plate, permanently polarized condenser |
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 |
Maximum Input Sound Level |
139 dB SPL, 1 kHz at 1% T.H.D. |
Dynamic Range |
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 |
Switches |
Flat, roll-off |
Weight |
5.1 oz (144 g) |
Dimensions |
18.94" (481.0 mm) long (U857QL), 14.37" (365.0 mm) long (U857Q) , 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°) |
Audio-Technica Case Style |
M34 |
What's Included
- AT8153 two-stage foam windscreen
- AT8662 shock mount