Discontinued
Cardioid Condenser Boundary Microphone
U851A
U851A
Eigenschappen
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.
- 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
Specifications
Microphone | |
---|---|
Element | Polarized condenser |
Polair patroon | Half-cardioid (cardioid in hemisphere above mounting surface) |
Frequentierespons | 30 - 20,000 Hz |
Lage frequentie roll-off | 80 Hz, 18 dB/octave |
Gevoeligheid open circuit | Phantom: -40 dB (10.0 mV) re 1V at 1 Pa Battery: -41 dB (8.9 mV) re 1V at 1 Pa |
Maximaal geluidingangsniveau | Phantom: 133 dB, 1 kHz at 1% T.H.D. - Battery: 123 dB, 1 kHz at 1% T.H.D. |
Dynamisch bereik | Phantom: 111 dB,1 kHz at Max SPL - Battery: 101 dB, 1 kHz at Max SPL |
Signaal-ruisverhouding | 72 dB, 1 kHz at 1 Pa |
Vereisten fantoomvoeding | 11-52V DC, 2 mA typical |
Batterijtype | 1.5V AA/UM3 |
Batterijspanning/levensduur | 0.4 mA / 1200 hours typical (alkaline) |
Schakelaars | Off, on-flat, on-roll-off |
Gewicht | 8.6 oz (244 g) |
Kabel | 25.0' (7.6 m) long (permanently attached to microphone), 0.13" (3.2 mm) diameter, 2-conductor, shielded cable with TA3F-type connector |
Afmetingen | 4.25" (108.0 mm) long, 3.31" (84.0 mm) maximum width, 0.91" (23.0 mm) height |
Uitgangsconnector | 3-pin XLRM-type |
Meegeleverde accessoires | AT8531 power module; battery; soft protective pouch |
Reviews
Downloads
U851A Declaration of Conformity
U851A Frequency Response
U851A Polar Pattern
U851A Submittal Sheet
U851A Specification Sheet