Omnidirectional Condenser Boundary Microphone ยี่ห้อ Audio-Technica รุ่น U851RO
Featuring breakthrough audio and mechanical design innovations, the phantom-powered U851RO offers outstanding speech intelligibility and transparent sound quality for surface-mount applications. The omnidirectional microphone is equipped with a PivotPoint® rotating output connector, UniSteep® filter and UniGuard® RFI-shielding technology.
The U851RO accepts interchangeable condenser elements in cardioid and hypercardioid polar patterns. With a heavy die-cast case and silicon foam bottom pads to minimize coupling of surface vibration to the microphone, the U851RO is equipped with self-contained electronics, eliminating the need for an external power module.
Features
- Designed for surface-mount applications such as high-quality sound reinforcement, professional recording, television, conferencing and other demanding sound pickup situations
- Low-profile element provides uniform omnidirectional polar pattern with 360º acceptance angle
- PivotPoint® rotating output connector allows cable to exit from either the rear or the bottom of the microphone
- 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
- 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 silicone foam bottom pads minimize coupling of surface vibration to the microphone
- Low-profile design with low-reflectance finish for minimum visibility
Specifications:
- 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: –31 dB (28.2 mV) re 1V at 1 Pa
- Impedance: 200 ohms
- Maximum Input Sound Level: 132 dB SPL, 1 kHz at 1% T.H.D.
- Dynamic Range (typical): 111 dB, 1 kHz at Max SPL
- Signal-to-noise ratio: 73 dB, 1 kHz at 1 Pa
- Phantom Power Requirements: 11-52V DC, 4 mA typical
- Switch: Flat, roll-off
- Weight: 262 g (9.2 oz)
- Dimensions: 108.0 mm (4.25″) maximum length,
- 84.0 mm (3.31″) maximum width,
- 23.0 mm (0.91″) maximum height
- Output Connector: TB3M-type
- Cable: 7.6 m (25.0′) long, 3.2 mm (0.13″) diameter, 2-conductor, shielded cable with TA3F-type and XLRM-type connectors
- Optional Interchangeable Elements: UE-C cardioid (120°);
- UE-H hypercardioid (100°)
- Accessory Furnished: Soft protective pouch
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