Audio Technica Omni Condenser Microphone - U891RBO

Audio Technica Omni Condenser Microphone - U891RBO

Part Number: U891RBO
Our Price: $319.00
Availability: Usually ships the same business day


Omnidirectional Condenser Boundary Microphone

Key Features
  • Omnidirectional condenser boundary microphone with switch
  • Designed for surface-mount applications such as high-quality sound reinforcement, professional recording, television, conferencing and other demanding sound pickup situations
  • The capacitive touch switch can be set to any of three operating modes: “touch-on/touch-off”, “touch-to-talk” and “touch-to-mute”
  • Integral, phantom-powered, two-state RGB LED indicator displays on/off status of microphone
  • PivotPoint™ rotating output connector allows cable to exit from either the rear or the bottom of the microphone
  • UniGuard™ RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)
  • 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
  • Threaded inserts on bottom of microphone allow it to be mounted with screws for increased security


ElementFixed-charge back plate, permanently polarized condenser
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
Maximum Input Sound Level130 dB SPL, 1 kHz at 1% T.H.D.
Dynamic Range104 dB, 1 kHz at Max SPL
Signal-to-Noise Ratio68 dB, 1 kHz at 1 Pa, A-weighted
Phantom Power Requirements11-52V DC, 9.3 mA
SwitchesActivation: on/off
Switch function: touch on/off, momentary on, momentary off
LED Color: mic on, mic off
Flat, roll-off
Weight253 g (8.9 oz)
Cable25.0' (7.6 m) long, 0.13" (3.2 mm) diameter, 2-conductor, shielded cable with TA3F and XLRM connectors
Dimensions0.91" (23.0 mm) H x 3.30" (83.9 mm) W x 4.25" (108.0 mm) D
Output Connector Microphone: TB3M-type
Cable: 3-pin XLRM-type
Optional Interchangeable ElementsUE-C Cardioid (120°); UE-H hypercardioid (100°); UE-O omnidirectional (360°)
Accessories IncludedSoft protective pouch