{"id":15400,"date":"2026-02-26T01:29:52","date_gmt":"2026-02-26T01:29:52","guid":{"rendered":"https:\/\/singaporeproaudio.com\/php1\/?post_type=product&p=15400"},"modified":"2026-02-26T01:31:39","modified_gmt":"2026-02-26T01:31:39","slug":"audio-technica-u891rbo-omnidirectional-boundary-microphone-with-mute-switch","status":"publish","type":"product","link":"https:\/\/singaporeproaudio.com\/php1\/product\/audio-technica-u891rbo-omnidirectional-boundary-microphone-with-mute-switch\/","title":{"rendered":"Audio Technica U891RBO Omnidirectional Boundary Microphone with Mute Switch"},"content":{"rendered":"

Audio-Technica U891RBO Omnidirectional Boundary Microphone<\/strong> is a professional conference boundary microphone designed for boardrooms, meeting rooms, and conferencing systems. This omnidirectional boundary microphone captures clear speech from all directions, making it ideal for table-mounted conference applications, teleconferencing, sound reinforcement, and broadcast environments.<\/p>\n

The U891RBO boundary microphone features a touch-sensitive mute switch with selectable modes including touch on\/off, push-to-talk, and touch-to-mute. A built-in RGB LED indicator clearly shows microphone status, helping users manage meetings smoothly. The PivotPoint® rotating output connector allows flexible cable routing from the rear or bottom for clean installations.<\/p>\n

Engineered for reliable performance, this condenser boundary microphone includes UniGuard® RFI shielding to reduce radio frequency interference and an 80 Hz low-cut filter to minimize low-frequency noise such as table vibrations and room rumble. The heavy die-cast housing and non-slip silicone base reduce surface noise, while threaded mounting points provide secure permanent installation.<\/p>\n

Phantom-powered operation and self-contained electronics eliminate the need for an external power module, making the Audio-Technica U891RBO an excellent choice for conference rooms, boardrooms, government facilities, classrooms, and corporate AV installations requiring a low-profile omnidirectional boundary microphone.<\/p>\n

\n

Key Features<\/h3>\n

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

\u2022 Touch-sensitive mute switch with touch on\/off, push-to-talk, and touch-to-mute modes<\/p>\n

\u2022 Built-in RGB LED status indicator for clear microphone on\/off visibility<\/p>\n

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

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

\u2022 80 Hz low-cut filter helps reduce ambient and vibration noise<\/p>\n

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

\u2022 Phantom-powered condenser design with no external power module required<\/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 (360°) (optional interchangeable elements available separately)<\/p>\n

\u2022 Frequency & Filtering:<\/strong> Frequency response: 20 Hz \u2013 20,000 Hz; Low-frequency roll-off: 80 Hz, 18 dB\/octave<\/p>\n

\u2022 Sensitivity & SPL:<\/strong> Open circuit sensitivity: -34 dB (19.9 mV) re 1V at 1 Pa; Max input sound level: 130 dB SPL (1 kHz at 1% T.H.D.)<\/p>\n

\u2022 Noise & Dynamic Range:<\/strong> Dynamic range: 104 dB (1 kHz at Max SPL); Signal-to-noise ratio: 68 dB (1 kHz at 1 Pa, A-weighted)<\/p>\n

\u2022 Power:<\/strong> Phantom power requirements: 11 \u2013 52V DC, 9.3 mA<\/p>\n

\u2022 Switch & LED:<\/strong> Activation: on\/off; Switch function: touch on\/off, momentary on (touch to talk), momentary off (touch to mute); LED: two-state RGB (mic on \/ mic off)<\/p>\n

\u2022 Connectors:<\/strong> Output connector (microphone): TB3M-type; Cable connector: 3-pin XLRM-type<\/p>\n

\u2022 Cable:<\/strong> 25.0 ft (7.6 m), 0.13 in (3.2 mm) diameter, 2-conductor shielded cable with TA3F and XLRM connectors<\/p>\n

\u2022 Dimensions:<\/strong> 0.91 in (23.0 mm) H x 3.30 in (83.9 mm) W x 4.25 in (108.0 mm) D<\/p>\n

\u2022 Weight:<\/strong> 253 g (8.9 oz)<\/p>\n

\u2022 Optional Interchangeable Elements (Sold Separately):<\/strong> UE-C Cardioid (120°); UE-H Hypercardioid (100°); UE-O Omnidirectional (360°)<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

    \n
  • Omnidirectional boundary condenser mic designed for conference rooms and boardroom installations.<\/li>\n
  • Touch-sensitive capacitive switch supports touch on\/off, touch to talk, and touch to mute modes.<\/li>\n
  • Phantom-powered operation with a two-state RGB LED for clear mic on\/off status.<\/li>\n
  • PivotPoint® rotating output connector allows tidy rear or bottom cable exit.<\/li>\n
  • UniGuard® RFI shielding and an 80 Hz low-cut filter help maintain clean, intelligible speech pickup.<\/li>\n<\/ul>\n","protected":false},"featured_media":15401,"template":"","meta":[],"product_brand":[102],"product_cat":[21,31,170],"product_tag":[],"class_list":{"0":"post-15400","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\/15400","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\/15401"}],"wp:attachment":[{"href":"https:\/\/singaporeproaudio.com\/php1\/wp-json\/wp\/v2\/media?parent=15400"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/singaporeproaudio.com\/php1\/wp-json\/wp\/v2\/product_brand?post=15400"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/singaporeproaudio.com\/php1\/wp-json\/wp\/v2\/product_cat?post=15400"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/singaporeproaudio.com\/php1\/wp-json\/wp\/v2\/product_tag?post=15400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}