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Audio Technica U851A Cardioid Unipoint Phantom/Batt Powered Boundry Mic - Black
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    Audio Technica U851A Cardioid Unipoint Phantom/Batt Powered Boundry Mic - Black

    Manufacturer: Audio-Technica

    Item #: U851A   •   MFG #: U851A


    Our Price:$269.00

    free ship
    Availability: Usually ships in 3-10 business days
    This item is currently out of stock and will ship the minute we receive it – normally 3-10 business days. Need it sooner? Call 800-522-2025 and we'll make it happen,or email Customer Service for expedited delivery options. Certain Non-Stock Items Valued over $50.00 may Ship FREE UPS GROUND in the Continental US. Multiple quantities of the same non-Stock Item Valued below $50.00 may be ordered to meet the $50 minimum order requirement to qualify for Free UPS Ground Freight. This offer does not apply to certain freight-intensive or hazardous items. Certain restrictions may apply.



      Required Accessories

      The Audio Technica U851A is a wide-range condenser microphone with a cardioid polar pattern. It is designed for surface-mount applications such as high-quality sound reinforcement, conferencing, professional recording, television and other demanding sound pickup applications. The microphone requires 11V to 52V phantom power or a 1.5V AA battery for operation. A battery need not be in place for phantom power operation. The microphone is equipped with UniGuard RFI-shielding technology, which offers outstanding rejection of radio frequency interference (RFI). The microphone's cardioid polar pattern provides a 120 angle of degree acceptance (cardioid in hemisphere above mounting surface). Additional interchangeable elements with omnidirectional (360 degree) and hypercardioid (100 degree) pickup patterns are available. The microphone includes a 7.6 m (25') permanently attached miniature cable. Its free end connects to the provided AT8531 power module via a special TA3F-type connector designed to optimize RFI immunity. The output of the power module is a 3-pin XLRM type connector. The microphone is equipped with Audio Technica's unique PivotPoint rotating output connector.A 3-position switch in the power module permits choice of off, on flat response, or on low-roll off (via integral 80 Hz high-pass UniSteep filter). The roll-off position reduces the pickup of low-frequency ambient noise.The microphone comes equipped with a power module, a battery and a soft protective pouch. The microphone's heavy die-cast case and non-slip silicon foam bottom pads minimize coupling of surface vibration to the microphone. The microphone features a low-reflectance black finish.

      PivotPoint rotating output connector allows cable to exit from either the rear or the bottom of the microphone
      Small-diameter UniPoint cardioid capsule near boundary eliminates phase distortion and delivers clear, high-output performance
      Offers the convenience of battery or phantom power operation
      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
      UniSteep filter provides a steep low-frequency attenuation to improve sound pickup without affecting voice quality
      Available interchangeable elements permit angle of acceptance from 100 degree to 360 degree
      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

      Did You Know...... that while boundary mics are widely utilized in conference rooms and training applications many Audio Engineers use them as drum recording mics. It's true! Musicians and Audio Engineers can benefit from a pair of boundary mics by placing them on the floor on both sides of a kick drum, on the walls or even inside the kick drum. Have fun experimenting to find your killer drum sound.

      • 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 Phantom: -40 dB (10.0 mV) re 1V at 1 Pa, Battery: -41 dB (8.9 mV) re 1V at 1 Pa
        • IMPEDANCE Phantom: 200 ohms Battery: 270 ohms
        • MAXIMUM INPUT SOUND LEVEL Phantom: 133 dB SPL, 1 kHz at 1% T.H.D. Battery: 123 dB SPL, 1 kHz at 1% T.H.D.
        • DYNAMIC RANGE (typical) Phantom: 111 dB,1 kHz at Max SPL Battery: 101 dB, 1 kHz at Max SPL
        • SIGNAL-TO-NOISE RATIO 72 dB, 1 kHz at 1 Pa
        • PHANTOM POWER REQUIREMENTS 11-52V DC, 2 mA typical
        • BATTERY TYPE 1.5V AA/UM3
        • BATTERY CURRENT / LIFE 0.4 mA / 1200 hours typical (alkaline)
        • SWITCH Off, on-flat, on-roll-off
        • WEIGHT (MICROPHONE) 8.6 oz (244 g)
        • WEIGHT (POWER MODULE) 4.9 oz (139 g)
        • DIMENSIONS (MICROPHONE) 4.25" (108.0 mm) long, 3.31" (84.0 mm) maximum width, 0.91" (23.0 mm) height
        • DIMENSIONS (POWER MODULE) 3.31" (84.0 mm) H x 2.48" (63.0 mm) W x 0.87" (22.0 mm) D
        • OUTPUT CONNECTOR (POWER MODULE) Integral 3-pin XLRM-type
        • CABLE 25.0' (7.6 m) long (permanently attached to microphone), 0.13" (3.2 mm) diameter, 2-conductor, shielded cable with TA3F type connector
        • OPTIONAL INTERCHANGEABLE ELEMENTS UE-H hypercardioid (100 Degrees); UE-O omnidirectional (360 Degrees)
        • ACCESSORIES FURNISHED AT8531 power module; battery; soft protective pouch

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