The Audio‑Technica U851R is a phantom‑powered, low‑profile cardioid boundary condenser microphone designed for surface‑mount use in settings like conference rooms, broadcast studios, or television sets. It features a pivoting PivotPoint® output connector (cable exits from the rear or bottom), UniSteep® low‑cut filter and UniGuard® technology for RFI rejection. Its UniPoint® small‑diameter capsule enhances off‑axis rejection and speech clarity, while the heavy die‑cast chassis with silicone pads minimizes vibrations. It operates from 11–52 V phantom power and offers a 30 Hz–20 kHz frequency range with a selectable 80 Hz roll‑off—delivering transparent, intelligible speech capture.
