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Description:

Manufacturer's website

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. The 14.47” long microphone features an ultra-flexible small-diameter gooseneck and accepts interchangeable elements, available in cardioid, hypercardioid, omnidirectional and UniLine™ line cardioid polar patterns. 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.

• 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
  

SPECIFICATIONS
ELEMENT	Fixed-charge back plate, permanently polarized condenser
POLAR PATTERN	Cardioid
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
IMPEDANCE	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
SWITCH	Flat, roll-off
WEIGHT	5.1 oz (144 g)
DIMENSIONS	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; AT8662 shock mount
AUDIO-TECHNICA CASE STYLE	M34

SPECIFICATION GRAPHS