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  Audio Technica U851A Boundary Microphone

Audio Technica U851A
Audio Technica U851A
 
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List Price: $350.00
Our Price: $269.00


Availability: Usually Ships in 24 Hours
Product Code: 9166

 

Audio Technica U851A Cardioid Condenser Boundary Microphone

Audio Technica U851A Cardioid Condenser Boundary Microphone

Audio Technica U851A Cardioid Condenser Boundary Microphone Details
The Audio Technica U851A Cardioid Condenser Boundary Microphone Offers outstanding Audio-Technica sound for surface-mount applications.The Audio Technica U851A Cardioid Condenser Boundary Microphone features a PivotPoint® rotating output connector, UniSteep® filter and UniGuardâ"˘ RFI-shielding technology. This battery- or phantom-powered condenser microphone accepts interchangeable condenser elementsâ?"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.
 
Audio Technica U851A Cardioid Condenser Boundary Microphone Features
  • Designed for surface-mount applications such as high-quality sound reinforcement, professional recording, television, conferencing and other demanding sound pickup situations
  • PivotPoint® rotating output connector allows cable to exit from either the rear or the bottom of the microphone
  • Superior off-axis rejection for maximum gain before feedback
  • UniGuard® RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)
  • UniSteep® filter provides a steep low-frequency attenuation to improve sound pickup without affecting voice quality
  • Small-diameter UniPoint capsule near boundary eliminates phase distortion and delivers clear, high-output performance
  • Heavy die-cast case and non-slip silicon foam bottom pads minimize coupling of surface vibration to the microphone
  • Low-profile design with low-reflectance black finish for minimum visibility
  • Operates on battery or phantom power
Audio Technica U851A Cardioid Condenser Boundary Microphone Specifications
  • Element: Fixed-charge back plate, permanently polarized condenser
  • Polar Pattern: Half-cardioid (cardioid in hemisphere above mounting surface)
  • Frequency Response: 30-20,000 Hz
  • Low Frequency Roll-Off: 80 Hz, 18 dB/octave
  • Open Circuit Sensitivity: Phantom: Phantom: Phantom: â?"40 dB (10.0 mV) re 1V at 1 Pa; Battery: â?"41 dB (8.9 mV) re 1V at 1 Pa
  • Impedance: Phantom: Phantom: 200 ohms; Battery: 270 ohms
  • Maximum Input Sound Level: Phantom: Phantom: Phantom: 133 dB SPL, 1 kHz at 1% T.H.D.
    Battery: 123 dB SPL, 1 kHz at 1% T.H.D.
  • Dynamic Range (typical): 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: 1.5 AA/UM3
  • Battery Current / Life: 0.4 mA / 1200 hours typical (alkaline)
  • Switch: Off, on-flat, on-roll-off
  • Weight (Microphone): 8.6 oz (244 g)
  • Weight (Module): 4.9 oz (139 g)
  • Dimensions (Microphone): 4.25" (108.0 mm) long,  3.31" (84.0 mm) maximum width, 0.91" (23.0) height
  • Dimensions (Power Module): 3.31" (84.0 mm) H x, 2.48" (63.0 mm) Wx 0.87" (22.0 mm) D
  • Output Connector (Power Module): Integral 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 Furnished: AT8531 power module; battery; soft protective pouch