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Audio-Technica U851R

The U851R is a cardioid condenser boundary microphone built for outstanding speech intelligibility in installed sound. Its cardioid pattern favors the talkers in front of the mic while rejecting reflections and noise from behind, which helps control feedback in a live room. Breakthrough audio and mechanical design give it transparent sound from a low-profile, inconspicuous housing.

The boundary format uses the mounting surface to reinforce level and clarity. Phantom-powered electronics keep it clean and dependable for permanent installation. It connects over a standard XLR output and suits conference tables, boardrooms, and worship spaces that need clear, focused speech.

ElementCondenser
Polar PatternCardioid
Form FactorBoundary microphone
OutputIntegral 3-pin XLRM-type
Power11–52V phantom