AT831CW Beltpack Lavaliere Instrument Mic

The Audio-Technica AT831cW is a miniature cardioid condenser microphone engineered for close-miking instruments in live sound, broadcast, and installed audio environments. Its compact, low-profile design allows unobtrusive placement on a wide range of acoustic instruments — from guitar, piano, and strings to brass, woodwinds, and percussion — without impeding the performer.

The cardioid polar pattern provides excellent off-axis rejection, minimising bleed from adjacent sources and enhancing gain-before-feedback in demanding stage environments. A smooth, extended frequency response of 40 Hz – 20 kHz captures the full tonal character of acoustic instruments with clarity and natural detail.

Terminated with a 4-pin HRS-type connector, the AT831cW is purpose-built for direct connection to Audio-Technica UniPak body-pack wireless transmitters, making it an ideal choice for performers who require cable-free mobility. The included UniMount clothing clip and AT8444 violin mount provide versatile, secure attachment options for a variety of deployment scenarios.

- Element: Miniature permanent-polarised condenser
- Polar Pattern: Cardioid
- Frequency Response: 40 Hz – 20 kHz
- Connector: 4-pin HRS (cW-style) for wireless body-pack use
- Includes: Clothing clip, violin mount, and windscreen

A reliable, professional-grade solution for integrators and audio engineers seeking transparent instrument capture in wireless applications across theatre, house of worship, and live production settings.