Audio-Technica U851R Boundary Microphone

Special Price £175.00 Regular Price £229.00
on sale with limited quantity
SKU
DIG10053

Featuring breakthrough audio and mechanical design innovations, the 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.

Designed for surface-mount applications such as high-quality sound reinforcement, professional recording, television, conferencing and other demanding sound pickup situations

Features:

  • 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)
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
Click on the chart to view the larger image
POLAR PATTERN

POLAR PATTERN

FREQUENCY RESPONSE

FREQUENCY RESPONSE

More Information
Manufacturer SKU U851R
Capsule Type Dynamic
Polar Pattern Omnidirectional, Cardioid, Hypercardioid
MS North Ltd. Mediaspec is the trading name of MS North Ltd. Company registration number: 226089. VAT Number: 789 5999 19.