{"id":15403,"date":"2026-02-26T01:56:31","date_gmt":"2026-02-26T01:56:31","guid":{"rendered":"https:\/\/singaporeproaudio.com\/php1\/?post_type=product&p=15403"},"modified":"2026-02-26T01:56:31","modified_gmt":"2026-02-26T01:56:31","slug":"audio-technica-u851rbo-omnidirectional-boundary-microphone","status":"publish","type":"product","link":"https:\/\/singaporeproaudio.com\/php1\/product\/audio-technica-u851rbo-omnidirectional-boundary-microphone\/","title":{"rendered":"Audio Technica U851RBO Omnidirectional Boundary Microphone"},"content":{"rendered":"

Audio-Technica U851RBO Omnidirectional Boundary Microphone<\/strong> is a professional conference boundary microphone designed for boardrooms, meeting rooms, and AV installations. This omnidirectional boundary microphone captures clear speech from all directions, making it ideal for table-mounted conferencing, teleconferencing systems, sound reinforcement, broadcast, and recording applications.<\/p>\n

The U851RBO condenser boundary microphone delivers excellent speech intelligibility and transparent audio quality for demanding environments. Its PivotPoint® rotating output connector allows flexible cable routing from either the rear or bottom for clean and secure installations on conference tables or podiums.<\/p>\n

Built for reliable operation, this conference microphone features UniGuard® RFI-shielding to reduce interference from wireless devices and an 80 Hz UniSteep® low-cut filter to minimize low-frequency noise such as table vibrations and room rumble. The heavy die-cast housing with non-slip silicone base reduces surface noise while maintaining a low-profile appearance.<\/p>\n

Phantom-powered operation and self-contained electronics eliminate the need for an external power module. Threaded mounting points allow permanent installation for added security, making the Audio-Technica U851RBO an excellent omnidirectional boundary microphone for conference rooms, government facilities, classrooms, broadcast studios, and corporate AV systems.<\/p>\n

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Key Features<\/h3>\n

\u2022 Professional omnidirectional boundary microphone for conference and boardroom applications<\/p>\n

\u2022 Designed for sound reinforcement, recording, broadcast, television, and conferencing<\/p>\n

\u2022 PivotPoint® rotating connector allows rear or bottom cable exit for flexible installation<\/p>\n

\u2022 UniGuard® RFI shielding reduces interference from wireless devices<\/p>\n

\u2022 80 Hz UniSteep® low-cut filter reduces ambient and vibration noise<\/p>\n

\u2022 Accepts interchangeable condenser elements for different pickup patterns (sold separately)<\/p>\n

\u2022 Heavy die-cast housing with non-slip base minimizes surface vibration pickup<\/p>\n

\u2022 Low-profile design with low-reflectance finish for discreet placement<\/p>\n

\u2022 Phantom-powered condenser design with self-contained electronics<\/p>\n

\n

Specification<\/h4>\n
\n

\u2022 Microphone Type:<\/strong> Condenser boundary microphone (fixed-charge back plate, permanently polarized)<\/p>\n

\u2022 Polar Pattern:<\/strong> Omnidirectional<\/p>\n

\u2022 Frequency Response:<\/strong> 20 Hz \u2013 20,000 Hz<\/p>\n

\u2022 Low-Frequency Roll-Off:<\/strong> 80 Hz, 18 dB\/octave<\/p>\n

\u2022 Sensitivity:<\/strong> -31 dB (28.2 mV) re 1V at 1 Pa<\/p>\n

\u2022 Maximum Input Sound Level:<\/strong> 132 dB SPL (1 kHz at 1% T.H.D.)<\/p>\n

\u2022 Impedance:<\/strong> 50 ohms<\/p>\n

\u2022 Signal-to-Noise Ratio:<\/strong> 73 dB (1 kHz at 1 Pa, A-weighted)<\/p>\n

\u2022 Power:<\/strong> Phantom power requirements: 11 \u2013 52V DC, 4.4 mA<\/p>\n

\u2022 Switches:<\/strong> Flat, roll-off<\/p>\n

\u2022 Output Connector:<\/strong> TB3M-type<\/p>\n

\u2022 Cable:<\/strong> 7.6 m long, 3.2 mm diameter, 2-conductor shielded cable with TA3F and 3-pin XLRM connectors<\/p>\n

\u2022 Dimensions:<\/strong> 23.0 mm (H) \u00d7 83.9 mm (W) \u00d7 108.0 mm (D)<\/p>\n

\u2022 Weight:<\/strong> 253 g<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

    \n
  • Professional omnidirectional boundary microphone for conference rooms and boardrooms.<\/li>\n
  • Captures clear speech from all directions for table-mounted conferencing applications.<\/li>\n
  • PivotPoint® rotating connector enables flexible rear or bottom cable routing.<\/li>\n
  • UniGuard® RFI shielding and 80 Hz low-cut filter help ensure clean audio.<\/li>\n
  • Phantom-powered condenser design with low-profile housing for discreet installation.<\/li>\n<\/ul>\n","protected":false},"featured_media":15404,"template":"","meta":[],"product_brand":[102],"product_cat":[21,31,170],"product_tag":[],"class_list":{"0":"post-15403","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-audio-technica","7":"product_cat-all-products","8":"product_cat-microphones","9":"product_cat-communication-microphones","11":"first","12":"instock","13":"shipping-taxable","14":"purchasable","15":"product-type-simple"},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/singaporeproaudio.com\/php1\/wp-json\/wp\/v2\/product\/15403","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/singaporeproaudio.com\/php1\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/singaporeproaudio.com\/php1\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/singaporeproaudio.com\/php1\/wp-json\/wp\/v2\/media\/15404"}],"wp:attachment":[{"href":"https:\/\/singaporeproaudio.com\/php1\/wp-json\/wp\/v2\/media?parent=15403"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/singaporeproaudio.com\/php1\/wp-json\/wp\/v2\/product_brand?post=15403"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/singaporeproaudio.com\/php1\/wp-json\/wp\/v2\/product_cat?post=15403"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/singaporeproaudio.com\/php1\/wp-json\/wp\/v2\/product_tag?post=15403"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}