The white-finished version of U891R, the versatile U891RW cardioid condenser boundary microphone features a touch-sensitive on-off switch that can be set to three modes: press-on/press-off, press to talk, and press to mute. The phantom-powered microphone is equipped with an innovative PivotPoint® rotating output connector and an LED status indicator. UniGuard® innovations offer unsurpassed immunity from radio frequency interference; interchangeable elements are available in cardioid, hypercardioid and omnidirectional polar patterns; an 80 Hz low-cut UniSteep® filter reduces pickup of low-frequency ambient noise. A heavy die-cast case and silicon foam bottom pads minimize coupling of surface vibration to the microphone. The unit’s self-contained electronics eliminate the need for an external power module.
Specifications: • 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: 130 dB SPL, 1 kHz at 1% THD • Dynamic range (typical): 104 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: Touch-sensitive control: on/off; Switch function: touch on/off, momentary on, momentary off; Flat, roll-off • 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 ft. (7.6 m) long, 0.13" (3.2 mm) diameter, 2-conductor, shielded cable with TA3F and XLRM-type connectors • Accessories furnished: Soft protective pouch.