Audio-Technica U891Rb Cardioid Condenser Boundary Microphone with Switch

The versatile U891Rb cardioid condenser boundary microphone is designed to deliver easy, flexible control in both conference and boardroom installations. It features an onboard touch-sensitive capacitive-type user switch that can be set to 3 modes — touch on/off, touch to talk, and touch to mute — with easy monitoring thanks to its smart, 2-state RGB LED status indicator. This phantom-powered mic comes equipped with a unique PivotPoint® rotating output connector as well as UniGuard® innovations that offer unrivaled radio frequency interference (RFI) immunity. Additional interchangeable mic elements are available in hypercardioid and omnidirectional polar patterns (sold separately). Its 80 Hz low-cut UniSteep® filter provides reduced pickup of low-frequency (LF) ambient noise. Its heavy die-cast case and silicon foam bottom pads minimize surface vibration coupling to the mic, while threaded inserts on the microphone's bottom allow it to be screw-mounted for added security. Its onboard self-contained electronics eliminate the need for an external power module. It comes in your choice of Black or White (U891RWb).

Audio-Technica U891Rb Applications:

High-quality sound reinforcement

Professional recording and Television

Conference and Boardrooms

Audio-Technica U891Rb Includes:

• U891Rb microphone
• Soft protective pouch

Audio-Technica U891Rb Features:

• Cardioid condenser boundary microphone with touch-sensitive capacitive-type user switch
• Small-diameter UniPoint® element near boundary eliminates phase distortion and delivers clear, high-output performance
• Three operating modes via capacitive touch switch: Touch On/Off, Touch to Talk, and Touch to Mute
• UniGuard® RFI-shielding technology offers rejection of radio frequency interference
• Low-profile design with low-reflectance finish for minimum visibility
• Comes in your choice of Black or White (U891RWb)

Audio-Technica U891Rb Specifications:

• Element: Fixed-charge back plate, permanently-polarized condenser
• Polar pattern: Cardioid (via the included interchangeable UE-C cardioid 120° element)
• Frequency response: 20 Hz to 20,000 Hz
• LF rolloff: 80 Hz, 18 dB/octave
• Open circuit sensitivity: -34 dB (19.9 mV) re 1V @ 1 Pa
• Impedance: 50 Ω
• Maximum input sound level: 130 dB SPL (sound pressure level), 1 kHz @ 1% T.H.D.
• Dynamic range (typical): 104 dB, 1 kHz @ Max SPL
• Signal-to-noise ratio: 68 dB, 1 kHz @ 1 Pa, A-weighted
• Phantom power requirements: 11 - 52 VDC, 9.3 mA
• Switches:
  • Activation: on/off
  • Switch functions: touch on/off, momentary on, momentary off
  • LED Color: mic on, mic off
  • Flat, rolloff
• Weight: 8.9 oz. (253 g)
• Dimensions (H x W x D): 0.91" x 3.30" x 4.25" (23 x 83.9 x 108mm)
• Output connector:
  • Microphone: TB3M-type
  • Cable: 25' (7.6 m) long x 0.13" (3.2mm) diameter, 2-conductor, shielded cable with TA3F and XLRM connectors
• Optional interchangeable elements (sold separately):
  • UE-H hypercardioid (100°)
  • UE-O omnidirectional (360°)
• Note: further information can be found within the "U891Rb/U891RWb User Manual" located under the "Documentation" tab above.