Condenser Boundary Microphone
Designed
to deliver easy, flexible control in conference and boardroom installations,
the versatile U891R cardioid condenser boundary microphone features an
activation 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.
Features
Designed for surface-mount applications such as high-quality sound reinforcement, professional recording, television, conferencing and other demanding sound pickup situations
An activation 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 silicone foam bottom pads minimize coupling of surface vibration to the microphone
Low-profile design with low-reflectance finish for minimum visibility
Improved switch design
Available in two colors: black (U891Rx) and white (U891RWx)
Specifications
|
ELEMENT |
Fixed-charge back plate, permanently polarized condenser |
|
POLAR PATTERN |
Cardioid-Half
(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 |
|
SWITCHES |
Activation: on / OFF; :: Switch:
function: the From The From Press on the From / OFF, Momentary on, Momentary OFF; Flat, Roll-OFF |
|
WEIGHT |
264 g (9.3 oz) |
|
DIMENSIONS |
Mm 108.0 (4.25 ") the Maximum Length, 84.0 mm (3.31") the Maximum width, 23.0 mm (0.91 "). Height the Maximum |
|
OUTPUT CONNECTOR |
TB3M-type |
|
CABLE |
7.6 m (25.0 ') long, 3.2 mm (0.13 ") diameter, 2-conductor, shielded cable with TA3F-type and XLRM-type connectors |
|
OPTIONAL INTERCHANGEABLE ELEMENTS |
Omnidirectional O-UE (360 °)
UE-H hypercardioid (100 °) |
|
ACCESSORY FURNISHED |
Soft protective pouch |