Audio-Technica UniLine U857AU Cardioid Condenser Gooseneck Microphone

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 90° 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.

Features:

• Designed for high-quality sound reinforcement, professional recording and broadcasting
• UniLine™ polar pattern provides narrow 90° 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

• 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
• 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°)
• INCLUDED ACCESSORIES: 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