Audio-Technica U851R Cardioid Condenser Boundary Microphone - Black

Featuring breakthrough audio and mechanical design innovations, the phantom-powered U851R offers outstanding speech intelligibility and transparent sound quality for surface-mount applications. The microphone is equipped with a PivotPoint rotating output connector, UniSteep filter and UniGuard RFI-shielding technology. It accepts interchangeable condenser elementsavailable for boundary microphones in cardioid, hypercardioid and omnidirectional polar patterns. With a heavy die-cast case and silicon foam bottom pads to minimize coupling of surface vibration to the microphone, the U851R is equipped with self-contained electronics, eliminating the need for an external power module.

Features:

• Designed for surface-mount applications such as high-quality sound reinforcement, professional recording, television, conferencing and other demanding sound pickup situations

• 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)

• Self-contained electronics eliminate need for external power module

• 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

• Available in two colors: black (U851R) and white (U851RW)

Specs:

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: 134 dB SPL, 1 kHz at 1% T.H.D.
DYNAMIC RANGE (typical): 108 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: Flat, roll-off
WEIGHT: 9.2 oz (262 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 deg);
UE-O omnidirectional (360 deg)
INCLUDED ACCESSORY: Soft protective pouch