Reward points:
Purchasing this will earn you 82500 rewards points! See the Policies page for details.

Description:

Manufacturer's website

Audio-Technica’s U857AU incorporates the most essential ingredients for quality sound reproduction for a wide range of installed applications. Equipped with A-T’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.

• 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
  

SPECIFICATIONS
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 (typical)	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
WEIGHT (MICROPHONE)	5.0 oz (141 g)
WEIGHT (POWER MODULE)	4.9 oz (139 g)
DIMENSIONS (MICROPHONE)	16.81" (427.0 mm) long, 0.48" (12.2 mm) head diameter
DIMENSIONS (POWER MODULE)	3.31" (84.0 mm) H x 2.48" (63.0 mm) W x 0.87" (22.0 mm) D
OUTPUT CONNECTOR (POWER MODULE)	Integral 3-pin XLRM-type
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
OPTIONAL INTERCHANGEABLE ELEMENTS	UE-C cardioid (120°); UE-H hypercardioid (100°); UE-O omnidirectional (360°)
ACCESSORIES FURNISHED	AT8531 power module; AT8154 two-stage foam windscreen; AT8663 A-mount flange; AT8664 A-mount cable pass-through adapter; battery
AUDIO-TECHNICA CASE STYLE	M33

SPECIFICATION GRAPHS
Click on the chart to view the larger image
		POLAR PATTERN
		FREQUENCY RESPONSE