Designed to deliver easy, flexible control in conference and boardroom installations, the versatile U891R 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 a unique 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. The microphone's 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.
- Designed for surface-mount applications such as
high-quality sound reinforcement, professional recording, television,
conferencing and other demanding sound pickup situations
- Ultra-quiet electronic switch can be set to any of
three operating modes: "touch-on/ touch-off," "touch-to-talk" and
"touch-to-mute"
- 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)
- Small-diameter UniPoint capsule near boundary
eliminates phase distortion and delivers clear, high-output performance
- Heavy die-cast case and non-slip silicon foam bottom
pads minimize coupling of surface vibration to the microphone
- Low-profile design with low-reflectance finish for minimum visibility
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% T.H.D. |
| 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 |
| WEIGHT |
9.3 oz (264 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 |
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