Audio Technica U851A Boundary Microphone
Product #10872
SKU U851A
In stock with supplier Usually ships in 2 - 3 working days


Audio Technica U851A Boundary Microphone

Product #10872 | SKU U851A
In stock with supplier Usually ships in 2 - 3 working days

AT Omnidirectional Condenser Boundary Microphone.
Our Price $319.00


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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.

Product 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 silicone 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

Technical 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: –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 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: 1.5V 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 (Power Module): 4.9 oz (139 g)
  • Dimemsions (Microphone):
    • 4.25" (108.0 mm) long,
    • 3.31" (84.0 mm) maximum width,
    • 0.91" (23.0 mm) height
  • 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: 25.0' (7.6 m) long (permanently attached to microphone),
    • 0.13" (3.2 mm) diameter, 2-conductor,
    • shielded cable with TA3F-type connector
  • Optional Interchngeable Elements:
    • UE-H hypercardioid (100°);
    • UE-O omnidirectional (360°)
  • Accessories Furnished:
    • AT8531 power module
    • battery; soft protective pouch

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Product:
Audio Technica U851A Boundary Microphone
Manufacturer:
Audio Technica
Model:
U851A
SKU:
U851A
RM Product #:
10872