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Audio Technica U851R Condenser Boundary MicrophoneThe Audio Technica U851R Condenser Boundary Microphone is a breakthrough in microphone technology, offering outstanding speech intelligibility and transparent sound quality for surface-mount applications.
The phantom-powered U851R is equipped with a PivotPoint rotating output connector, UniSteep filter and UniGuard RFI-shielding technology. With a heavy die-cast case and silicon foam bottom pads to minimize coupling of surface vibration to the microphone, the U851R is equipped with self-contained electronics, eliminating the need for an external power module.
Audio Technica U851R 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)
- Self-contained electronics eliminate need for external power module
- 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 finish for minimum visibility
Audio Technica U851R 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: –34 dB (19.9 mV) re 1V at 1 Pa
- Impedance: 200 ohms
- Maximum Input Sound Level: 134 dB SPL, 1 kHz at 1% T.H.D.
- Dynamic Range (typical): 108 dB, 1 kHz at Max SPL
- Signal-To-Noise Ratio: 68 dB, 1 kHz at 1 Pa
- Phantom Power Requirements: 11-52V DC, 4 mA typical
- Switch: Flat, roll-off
- Weight: 9.2 oz (262 g)
- Dimensions:
- 4.25-inches (108.0 mm) long
- 3.31-inches (84.0 mm) maximum width
- 0.91-inches (23.0 mm) height
- Output Connector: TB3M-type
- Cable:
- 25-feet (7.6 m) long, 0.13-inches (3.2 mm) diameter
- 2-conductor, shielded cable with TA3F and XLRM-type connectors
- Accessory Furnished: Soft protective pouch
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