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Audio-Technica UA851A UniPoint Boundary Microphone
The Audio-Technica UA851A is a high quality surface-mounted boundary microphone designed for audio capturing in conference rooms, board rooms, class rooms, stage performances, podiums, houses-of-worship and more. The sleek rugged enclosure provides a low-profile while housing a cardioid, condenser element.
The cardioid pattern is effective in minimizing noise and feedback at the off-axis sections of the microphone, resulting in greater signal to noise ratio. The UA851's capsules are interchangeable, omni-directional and hyper-cardioid polar patterns are available. The output connection features a pivot motion for easy installation on flat surfaces. The microphone includes an external phantom power supply unit that provides a standard XLR output connection and 11-52V DC phantom power. Phantom power is supplied via an external source or 1.5V AA alkaline battery.
- Cardioid Pattern
- The cardioid polar pattern is effective in rejecting off-axis audio signal that can cause noise and feedback.
- PivotPoint Rotating Output Connection
- The connector features a pivoting motion, which aids in surface mounting.
- UniSteep Filter
- A low-frequency filter minimizes low frequency rumble and noise caused by vibration, proximity effect, ambiance, etc.
- UniGuard RFI Shielding
- UniGuard shielding protects against noise caused by radio frequency interference that may occur.
- External Power Supply
- An external power supply module supplies 12-52VDC phantom power from an external source or internal 1.5V AA battery. The power supply also provides a standard 3-pin XLR output connection.
| Transducer | Condenser |
| Polar Pattern |
Half-cardioid
(cardioid in hemisphere above mounting surface) |
| Frequency Response | 30Hz to 20KHz |
| Dynamic Range (Typical) |
Phantom: 111dB,1KHz at Max SPL
Battery: 101dB, 1KHz at Max SPL |
| Signal-to-Noise Ratio | 72dB, 1KHz at 1 Pa |
| Maximum Input Sound Level |
Phantom: 133dB SPL, 1KHz at 1% T.H.D.
Battery: 123dB SPL, 1KHz at 1% T.H.D. |
| Power Requirements | 11-52VDC, 2 mA typical |
| Output Impedance |
Phantom: 200 ohms
Battery: 270 ohms |
| Output Connectors | Integral 3-pin XLRM-type from power module |
| Pad | No |
| Low Frequency Roll-Off | 80Hz, 18dB/octave |
| Dimensions | 3.31 x 2.48 x 0.87" (84 x 63 x 22mm) (HxWxD) |
| Weight |
Microphone: 8.6 oz (244g)
Power Module: 4.9 oz (139g) |
Cables
-
- Original: $16.49
- Save: $1.65
- Price: $14.84
What's in the Box
- AT8531 Power Supply
- AA Battery
- Soft Protective Pouch
- 1 Year Warranty
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