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Audio-Technica U851Rb Cardioid Condenser Boundary Microphone (Black)

  • Dale #:

    AUDI-U851RB
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Description

The phantom-powered U851Rb cardioid condenser boundary microphone offers outstanding speech intelligibility and transparent sound quality for surface-mount applications such as high-quality sound reinforcement, professional recording, television, conferencing and other demanding sound pickup situ... Read More

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Description

The phantom-powered U851Rb cardioid condenser boundary microphone offers outstanding speech intelligibility and transparent sound quality for surface-mount applications such as high-quality sound reinforcement, professional recording, television, conferencing and other demanding sound pickup situations.

The microphone is equipped with a PivotPoint® rotating output connector, UniSteep® filter and UniGuard® RFI-shielding technology. It accepts interchangeable condenser elements, available separately in 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 U851Rb is equipped with self-contained electronics, eliminating the need for an external power module. Threaded inserts on the bottom of the microphone allow it to be mounted with screws for increased security.

Available in two colors: black (U851Rb) and white (U851RWb).

Features:

  • Cardioid condenser boundary microphone
  • Designed for surface-mount applications such as high-quality sound reinforcement, professional recording, television, conferencing and other demanding sound pickup situations
  • Superior off-axis rejection for maximum gain before feedback
  • PivotPoint® rotating output connector allows cable to exit from either the rear or the bottom of the microphone
  • Small-diameter UniPoint® element near boundary eliminates phase distortion and delivers clear, high-output performance
  • Available interchangeable elements permit angle of acceptance from 100° to 360°
  • UniGuard® RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)
  • Self-contained electronics eliminate need for external power module
  • 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
  • Threaded inserts on bottom of microphone allow it to be mounted with screws for increased security
  • Available in two colors: black (U851Rb) and white (U851RWb)

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Product Specs

ElementFixed-charge back plate, permanently polarized condenser
Polar PatternCardioid
Frequency Response20 - 20,000 Hz
Low Frequency Roll-Off80 Hz, 18 dB/octave
Open Circuit Sensitivity-34 dB (19.9 mV) re 1V at 1 Pa
Impedance50 ohms
Maximum Input Sound Level134 dB SPL, 1 kHz at 1% T.H.D.
Dynamic Range (Typical)108 dB, 1 kHz at Max SPL
Signal-to-Noise Ratio68 dB, 1 kHz at 1 Pa, A-weighted
Phantom Power Requirements11– 52V DC, 4.4 mA
SwitchFlat, roll-off
Weight253 g (8.9 oz)
Dimensions0.91" (23.0 mm) H x 3.30" (83.9 mm) W x 4.25" (108.0 mm) D
Output ConnectorMicrophone: TB3M-type
Cable: 3-pin XLRM-type
Cable25.0' (7.6 m) long, 0.13" (3.2 mm) diameter, 2-conductor, shielded cable with TA3F and XLRM connectors
Optional Interchangeable ElementsUE-H hypercardioid (100°)
UE-O omnidirectional (360°)
Accessory FurnishedSoft protective pouch

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