Menu Close


Brand: Audio Technica


Omnidirectional condenser boundary mic. 11-52V phantom power only. PivotPoint rotating output connector. Built-in power module.

SKU: U851RO Category:

Manufacturer’s website

U851RO Omnidirectional Condenser Boundary Microphone

Featuring breakthrough audio and mechanical design innovations, the phantom-powered U851RO offers outstanding speech intelligibility and transparent sound quality for surface-mount applications. The omnidirectional microphone is equipped with PivotPoint rotating output connector, UniSteep filter and UniGuard RFI-shielding technology. It accepts interchangeable condenser elements in cardioid and hypercardioid polar patterns. With heavy die-cast case and silicon foam bottom pads to minimize coupling of surface vibration to the microphone, the U851RO is equipped with self-contained electronics, eliminating 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
    – Low-profile element provides uniform omnidirectional polar pattern with 360 degrees acceptance angle
    – PivotPoint rotating output connector allows cable to exit from either the rear or the bottom of the microphone
    – UniGuard RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)
    – UniSteep filter provides steep low-frequency attenuation to improve sound pickup without affecting voice quality
    – 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


    ELEMENT: Fixed-charge back plate, permanently polarized condenser

    POLAR PATTERN: Omnidirectional in hemisphere above mounting surface

    FREQUENCY RESPONSE: 30-20,000 Hz

    LOW FREQUENCY ROLL-OFF: 80 Hz, 18 dB/octave

    OPEN CIRCUIT SENSITIVITY: 31 dB (28.2 mV) re 1V at Pa

    IMPEDANCE: 200 ohms

    MAXIMUM INPUT SOUND LEVEL: 132 dB SPL, kHz at percent T.H.D.

    DYNAMIC RANGE: (typical) 111 dB, kHz at Max SPL

    SIGNAL-TO-NOISE RATIO: 73 dB, kHz at Pa


    SWITCH: Flat, roll-off

    WEIGHT: 262 (9.2 oz)

    DIMENSIONS: 108.0 mm (4.25 inches) maximum length, 84.0 mm (3.31 inches) maximum width, 23.0 mm (0.91 inches) maximum height

    OUTPUT CONNECTOR: TB3M-type CABLE 7.6 (25.0 feet) long, 3.2 mm (0.13 inch) diameter, 2-conductor, shielded cable with TA3F-type and XLRM-type connectors

    OPTIONAL INTERCHANGEABLE ELEMENTS: UE-C cardioid (120 degrees); UE-H hypercardioid (100 degrees) ACCESSORY FURNISHED Soft protective pouch

Weight 1.5 lbs


There are no reviews yet.

Be the first to review “U851RO”


Wishlist 0
Continue Shopping