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Audio-Technica UA851A UniPoint Boundary Microphone

B&H # AUU851A Mfr # U851A
In Stock
Free Expedited Shipping
You Pay: $269.00

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)
Audio-Technica UA851A UniPoint Boundary Microphone
  • AT8531 Power Supply
  • AA Battery
  • Soft Protective Pouch
  • 1 Year Warranty
  • REVIEW SNAPSHOT®

    by PowerReviews
    Audio-TechnicaUA851A UniPoint Boundary Microphone
     
    4.6

    (based on 5 reviews)

    Ratings Distribution

    • 5 Stars

       

      (3)

    • 4 Stars

       

      (2)

    • 3 Stars

       

      (0)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (0)

    100%

    of respondents would recommend this to a friend.

    Pros

    • Good audio (5)
    • Compact (4)
    • Easy to use (4)
    • Versatile (4)

    Cons

      Best Uses

      • Amateur recording (4)
      • Outdoor events / games (4)
      • Professional recording (4)
      • Home studio (3)
        • Reviewer Profile:
        • Experienced (4)

      Reviewed by 5 customers

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      Displaying reviews 1-5

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      5.0

      Best Boundry Mic I have ever used

      By Pakman

      from Murfreesboro, TN

      About Me Experienced

      Verified Buyer

      Pros

      • Clear Sound
      • Compact
      • Durable
      • Easy To Use
      • Versatile

      Cons

        Best Uses

        • Amateur Recording
        • Events
        • Home Studio
        • Professional Recording

        Comments about Audio-Technica UA851A UniPoint Boundary Microphone:

        I was skeptical that this would work when I unwrapped it. I could put it three or four feet away on the table, sitting straight up. It worked flawlessly.

        Share this review

         
        4.0

        I would definitely buy this product agai

        By happy user

        from New York, NY

        About Me Novice

        Verified Buyer

        Pros

        • Clear Sound
        • Easy To Use
        • Versatile

        Cons

          Best Uses

          • Events

          Comments about Audio-Technica UA851A UniPoint Boundary Microphone:

          This product is used almost exclusively to record meeting. We are very satisfied with it's performace.

          Share this review

           
          5.0

          I would recommend this product

          By Rich

          from Brookeville, Maryland

          About Me Experienced

          Verified Buyer

          Pros

          • Clear Sound
          • Compact
          • Durable
          • Easy To Use
          • Lightweight
          • Versatile

          Cons

            Best Uses

            • Amateur Recording
            • Home Studio
            • Professional Recording

            Comments about Audio-Technica UA851A UniPoint Boundary Microphone:

            I use this microphone to record several people talking around a table.
            It has great pick-up and audio qualities.

            Share this review

             
            5.0

            Exellent replacement

            By Ken

            from seninole FL

            About Me Experienced

            Verified Buyer

            Pros

            • Clear Sound
            • Compact
            • Easy To Use
            • Lightweight
            • Versatile

            Cons

              Best Uses

              • Amateur Recording
              • Events
              • Home Studio
              • Performances
              • Professional Recording

              Comments about Audio-Technica UA851A UniPoint Boundary Microphone:

              I use one of these for a replacement for a gooseneck podium mic and the other five I purchased to replace Standard table microphone which I've been using for panel discussions in our Digital Auditorium. Great clarity and the users do not touch the during events which eliminates unwanted noise. I would recommend these to anyone looking for auditorium microphones.

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              4.0

              Good sound but could be easier to conect

              By Tripod

              from The OC

              About Me Experienced

              Verified Buyer

              Pros

              • Clear Sound
              • Compact

              Cons

              • Conectors too close

              Best Uses

              • Amateur Recording
              • Events
              • Performances
              • Professional Recording

              Comments about Audio-Technica UA851A UniPoint Boundary Microphone:

              For it's purpose this mic is great. I use it to record audiance participation by placing several around large rooms while video taping events. It is not likly to be mistaken as a PA mic so pepole leave them alone. The problem I have is that it wasn't mentioned that there was a power box that connects at the end of the very long cable that contains the AA battery for fantom power, the off and low freq roll off switch and the conectors for the mic and recorder. The two plugs for in and out are placed so close to each other that it is not posible to plug in a wireless plugin transmitter and the mic cable at the same time. A 3' M-F XLR cable solves the problem but complicates the instalation. Works pro, looks pro but makes for a messy installation.

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