Offering outstanding Audio-Technica sound for surface-mount applications, the U851A UniPoint Boundary Microphone features a PivotPoint rotating output connector, UniSteep filter and UniGuard RFI-shiel... Click To Read More About This Product
Offering outstanding Audio-Technica sound for surface-mount applications, the U851A UniPoint Boundary Microphone 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 flat microphone sets audio-quality standards in challenging acoustic environments.
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 rearor 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
Element: Fixed-charge back plate, permanently polarized condenser
Polar Pattern: Omnidirectional in hemisphere above mounting surface
Frequency Response: 30-20,000 Hz
Low Frequency Roll-off: 80 Hz, 18 dB/octave
Open Circuit Sensitivity: Phantom ”39 dB (11.2 mV) re 1V at 1 Pa; Battery ”40 dB (10.0 mV) re 1V at 1 Pa
Impedance: Phantom 200 ohms; Battery 270
Maximum Input Sound Level: Phantom 133 dB, 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
Optional Interchangeable Elements: UE-H hypercardioid (100); UE-O omnidirectional (360)
Battery Type: 1.5V AA/UM3
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Reviewed by 1 customer
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Comments about Audio-Technica U851A UniPoint Cardioid Condenser Boundary Microphone:
I use to use 2 shotgun mics set in an X pattern to shoot corperate speakers or stage performers but with this mic the noise floor and rejection of feed back is so much better. As delivered the polar patern is a quarter of a globe. Anything below or behind the cable end is omited but any sound infront of or above is piced up clearly. works great as a podium mic also. It's not a mic that peaple will pick up and use as an MC mic so it gets left alone. The long cable between the mic and power box makes it nice to get to the battery or roll off switch durring the long performances.
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