Audio Technica U857AU UniLine Condenser Adapter-Mount Gooseneck Microphone

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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

[edit] Specs

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 T*A3F-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