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Audio-TechnicaU851A Cardioid Condenser Boundary Microphone
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Audio-Technica U851A

 

Audio-Technica U851A Cardioid Condenser Boundary Microphone


Product Model: U851A

Product Code: AT31-U851A
Price: US$326.00
TSW: 3

 
Audio-TechnicaU851A Cardioid Condenser Boundary Microphone Audio-TechnicaU851A



 Description

Offering outstanding Audio-Technica sound for surface-mount applications, the
U851A features a PivotPoint® rotating output connector, UniSteep® filter and
UniGuard® RFI-shielding technology. This battery or phantom-powered condenser
microphone accepts interchangeable condenser elements available for boundary
microphones in cardioid, hypercardioid and omnidirectional polar patterns. Its
heavy die-cast case and silicon foam bottom pads minimize coupling of surface
vibration to the microphone. With superior off-axis rejection and maximum gain-
before-feedback, this professional microphone sets audio-quality standards in
challenging acoustic environments.

Features:
- Ideal for sound reinforcement, professional recording and conferencing
- PivotPoint® rotating output connector
- Superior off-axis rejection for maximum gain before feedback
- Outstanding rejection of radio frequency interference (RFI)
- Small-diameter UniPoint capsule near boundary
- Operates on battery or phantom power

 General Specifications


Element: Polarized condenser
Polar Pattern: Half-cardioid (cardioid in hemisphere above mounting surface)
Frequency Response: 30 - 20,000 Hz
Open Circuit Sensitivity: Phantom: -40 dB (10.0 mV) re 1V at 1 Pa Battery: -41 dB
(8.9 mV) re 1V at 1 Pa
Impedance: Phantom : 200 ohms - Battery: 270 ohms
Maximum Input Sound Level: Phantom: 133 dB, 1 kHz at 1% T.H.D. - Battery: 123
dB, 1 kHz at 1% T.H.D.
Low Frequency Roll Off: 80 Hz, 18 dB/octave
Switches: Off, on-flat, on-roll-off
Dynamic Range: Phantom: 111 dB,1 kHz at Max SPL - Battery: 101 dB, 1 kHz at
Max SPL
Signal-to-Noise Ratio: 72 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)
Weight: 8.6 oz (244 g)
Dimensions: 4.25" (108.0 mm) long, 3.31" (84.0 mm) maximum width, 0.91" (23.0
mm) height
Output Connector: 3-pin XLRM-type
Cable: 25.0' (7.6 m) long (permanently attached to microphone), 0.13" (3.2 mm)
diameter, 2-conductor, shielded cable with TA3F-type connector
Accessories Included: AT8531 power module; battery; soft protective pouch


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