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Microphones

U851RW

Cardioid Condenser Boundary Microphone
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Details

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 Cardioid
FREQUENCY RESPONSE 30-20,000 Hz
LOW FREQUENCY ROLL-OFF 10~25,000Hz
OPEN CIRCUIT SENSITIVITY Maximum 30dB
IMPEDANCE 100dB/mW (when noise cancelling function is used)
MAXIMUM INPUT SOUND LEVEL 100Ω (when noise cancelling function is used)
DYNAMIC RANGE (TYPICAL) Approximately 220g (inclusive of battery and cable)
SIGNAL-TO-NOISE RATIO ∅ 3.5mm gold-plated stereo mini-plug
PHANTOM POWER REQUIREMENTS DC 1.5V (1 alkaline AAA battery)DC 1.2V (1 nickel metal hydride NiMH rechargeable AAA battery)
SWITCH Approximately 30 hours (1 alkaline AAA battery);15 hours (1 nickel metal hydride NiMH rechargeable AAA battery)
WEIGHT 1.2m headphone cable (∅ 3.5mm gold-plated stereo mini-plug),1.2m headphone cable for connecting to smart-phone (remote controller with microphone/∅ 3.5mm gold-plated stereo mini-plug)∅ 6.3mm gold-plated stereo adapter1 alkaline AAA batteryCarrying pouch
DIMENSIONS Integral 3-pin XLRM-type
OUTPUT CONNECTOR AT8480 shock mount for 5/8"-27 threaded stands; protective carrying case
CABLE S13
OPTIONAL INTERCHANGEABLE ELEMENTS AT8560 power supply; AT8447 shock mount for 5/8"-27 threaded stands; rack-mount adapters for power supply; protective mic carrying case
ACCESSORY FURNISHED R1

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