Description
The Audio-Technica AT831B is built for jobs where the microphone needs to disappear visually but still deliver clean, usable dialogue. Its miniature capsule tucks under clothing without printing through fabric, making it a solid fit for interviews, presentations, theater, and run-of-show broadcast setups.
- Cardioid pickup rejects off-axis room noise and pushes gain-before-feedback higher when working near stage monitors or PA speakers
- 40Hz-20kHz frequency response captures voice with natural low-end weight and detail, staying quiet at the bottom end
- Runs on a single 1.5V AA/UM3 battery or external phantom power from 9-52V (2mA typical), with an in-line power module feeding an XLRM output
- Three-position switch: off, on-flat, or on with a 150Hz low-frequency roll-off (6dB/octave) for reducing rumble or handling noise
- Included windscreen tames plosives and breath noise right at the capsule
- Handles up to 126dB SPL at 1kHz (1% THD) with a 97dB typical dynamic range and 65dB signal-to-noise ratio
- 200-ohm impedance, -45dB (5.6mV) sensitivity, and a featherweight 2.8g body
Battery life runs roughly 1000 hours on 1mA draw, so it’s ready for long shoot days or multi-session productions without constant swaps. If you need a lavalier that stays out of frame while still holding up to professional sound standards, the AT831B covers that ground reliably.
Reviews
There are no reviews yet.