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U851RW Cardioid Condenser Boundary Microphone

The white-finished version of the U851R, the phantom-powered U851RW features a PivotPoint® rotating output connector, UniSteep® filter and UniGuard® RFI-shielding technology. Offering outstanding speech intelligibility and transparent sound quality for surface-mount applications, the U851RW 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 U851RW is equipped with self-contained electronics, eliminating the need for an external power module.

  • 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 silicon 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 30-20,000 Hz
LOW FREQUENCY ROLL-OFF 80 Hz, 18 dB/octave
OPEN CIRCUIT SENSITIVITY –34 dB (19.9 mV) re 1V at 1 Pa
IMPEDANCE 200 ohms
MAXIMUM INPUT SOUND LEVEL 134 dB SPL, 1 kHz at 1% T.H.D.
DYNAMIC RANGE (typical) 108 dB, 1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO 68 dB, 1 kHz at 1 Pa
PHANTOM POWER REQUIREMENTS 11-52V DC, 4 mA typical
SWITCH Flat, roll-off
WEIGHT 9.2 oz (262 g)
DIMENSIONS 4.25" (108.0 mm) long,
3.31" (84.0 mm) maximum width,
0.91" (23.0 mm) height
OUTPUT CONNECTOR TB3M-type
CABLE 25.0' (7.6 m) long, 0.13" (3.2 mm) diameter, 2-conductor, shielded cable with TA3F and XLRM-type connectors
OPTIONAL INTERCHANGEABLE ELEMENTS UE-H hypercardioid (100°);
UE-O omnidirectional (360°)
ACCESSORY FURNISHED Soft protective pouch


SPECIFICATION GRAPHS
Click on the chart to view the larger image
POLAR PATTERN
POLAR PATTERN
FREQUENCY RESPONSE
FREQUENCY RESPONSE


WARRANTIES



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Product Q&A

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I am looking for a wireless microphone that can be mounted on a podium other than the normal microphones that stick high, because we have teenagers that using it and they have damaged few so far, and I think this microphone I can mount it firmly on the podium and will be harder for the teenagers to damage it.

I read in the specs that I can use it with a body pack wireless system, would you please provide me with complete information on witch equipment I need to purchase to be able to use this microphone wirelessly.

Thank you in advance

Elie
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1 year, 7 months ago
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Answer: 
Thank you for your inquiry. This microphone cannot be used as a wireless microphone, although we do have a wireless version, the U851cW. Please note that the U851cW is terminated only for an Audio-Technica wireless system.
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My previous question was to know which Audio-Technica transmitter and receiver I can connect the U851CW to be able to use it, the reason this microphone is its type of microphone, if you have the same type of microphone that I can use as wireless, please let me know.

Thank you in advance

Elie
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Canada
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Answer: 
Thank you for your inquiry. The U851cW is a wireless mcirophone. The "cW" indicates that this microphone is terminated to operate with any of our wireless body pack systems. This includes the 200 series, 700 series 1800 series, 2000 series, 3000 series, 4000 series and 5000 series.
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U851RW : Cardioid Condenser Boundary Microphone
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U851RW : Cardioid Condenser Boundary Microphone

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