• Each element can be powered and used individually or in any combination
  • Designed for surface-mount applications such as highquality sound reinforce
  • Ideal for a variety of video and audio conferencing application
  • Small-diameter UniPoint capsule near boundary eliminates phase distortion
  • Technology UniGuard™ offers outstanding rejection of RFI
  • Low-profile design with low-reflectance finish for minimum visibility


Product Description

With three cardioid condenser elements in a single housing, the phantom-powered U843R offers a remarkably versatile tool for surface-mount installations. Levers on the microphone base allow easy reorientation of two elements to offer 360° or 300° coverage. Since elements can be powered and used individually or in any combination, further flexibility is easily achieved. For example, with two elements powered, the microphone can provide a figure-of-eight polar pattern; with a single element powered, the microphone functions as a standard cardioid boundary microphone. Installation and repositioning are extremely quick, thanks to four recessed pathways on the base of the microphone that enable the user to route the cable as required to accommodate any installation requirements; no tools or disassembly are needed. The microphone also offers Audio-Technica’s innovative UniGuard® RFI-shielding technology.

  • Three cardioid condenser elements mounted in a single housing

  • Easily reposition two elements (via levers on the microphone base) to offer 360° or 300° coverage; each element can be powered and used individually or in any combination

  • Also functions as a stereo boundary microphone

  • Provides full, efficient and flexible coverage—fewer microphones required

  • Small-diameter capsules near boundary eliminate phase distortion and deliver clear, high-output performance

  • Low-frequency attenuation improves sound pickup without affecting voice quality

  • Cable routes through any of four recessed pathways on the microphone base (or down for direct feed through a table surface); no tools or disassembly required

  • UniGuard® RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)

  • Heavy die-cast case and non-slip silicone foam bottom pad minimizes coupling of surface vibration to the microphone

  • Low-profile design with low-reflectance finish for minimum visibility


Element Fixed-charge back plate, permanently polarized condenser
Polar Pattern Hemispherical Cardioid x3 (combine to omni-directional or bidirectional)
Frequency Response 70 – 16,000 Hz
Open Circuit Sensitivity -37 dB (14.1 mV) re 1V at 1 Pa
Impedance 100 ohms
Maximum Input Sound Level 134 dB SPL, 1 kHz at 1% T.H.D.
Switches The lever of elements can adjust the proper position
Dynamic Range 105 dB, 1 kHz at Max SPL
Signal-to-Noise Ratio 65 dB, 1 kHz at 1 Pa
Phantom Power Requirements 11-52V DC, 2 mA typical
Weight 160 g
Dimensions 20.0 mm – height ; 85.0 mm – maximum body diameter
Output Connector 3-pin XLRM-type
Cable 7.6 m long (permanently attached to microphone), 4 mm diameter, 6 conductor, shielded cable; output end stripped and tinned for connection to electronic device
Accessories Included Soft protective pouch