Audio-Technica U851R Cardioid Condenser Boundary Microphone - Black

ITEM #: U851R MFG #: U851R

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U851R - Overview

Featuring breakthrough audio and mechanical design innovations, the Audio-Technica phantom-powered U851R offers outstanding speech intelligibility and transparent sound quality for surface-mount applications. The microphone is equipped with a PivotPoint® rotating output connector, UniSteep® filter and UniGuard® RFI-shielding technology. It accepts interchangeable condenser elements-available for boundary microphones in cardioid, hypercardioid and omnidirectional polar patterns. With a heavy die-cast case and silicon foam bottom pads to minimize coupling of surface vibration to the microphone, the U851R is equipped with self-contained electronics, eliminating the need for an external power module.

Did You Know?
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.

  • Features:

    • 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)
    • 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
    • Available in two colors: Black (U851R) and White (U851RW)
     
  • Specifications:

    • Element: Fixed-charge back plate, permanently polarized condenser
    • Polar Pattern: Half-cardioid (cardioid in hemisphere above mounting surface)
    • Frequency Response: 30 - 20,000Hz
    • Low Frequency Roll-Off: 80Hz, 18dB/octave
    • Open Circuit Sensitivity: -34dB (19.9mV) re 1V @ 1Pa
    • Impedance: 200Ω
    • Maximum Input Sound Level: 134dB SPL, 1kHz @ 1% T.H.D.
    • Dynamic Range (typical): 108dB, 1kHz @ Max SPL
    • Signal-To-Noise Ratio: 68dB, 1kHz @ 1Pa
    • Phantom Power Requirements: 11 - 52V DC, 4mA typical
    • Switch: Flat, roll-off
    • Weight: 9.2oz
    • Dimensions: 4.25" long, 3.31" maximum width, 0.91" height
    • Output Connector: TB3M-type
    • Cable: 25.0ft long, 0.13" diameter, 2-conductor, shielded cable with TA3F and XLRM-type connectors
    • Optional Interchangeable Elements: UE-H hypercardioid (100°); UE-O omnidirectional (360°)
     
  • Item Includes:

    • Soft protective pouch
     
  • Warranty:

    • 2 Year Limited End-User
     
  • GTIN:

    0042005139149
     

U851R - Required Accessories

    California Residents:
    WARNING:
    Cancer and Reproductive Harm - www.P65Warnings.ca.gov