Audio-Technica AT803b live sound wireless system

Audio-Technica AT803b Lavalier Microphone

The Audio-Technica AT803b is a miniature omnidirectional condenser microphone designed for clip-on lavalier and instrument applications. It delivers clear, unobtrusive sound pickup suitable for lecturers, stage performers, and television use. The system operates on either battery or phantom power for flexible installation. Its compact form factor ensures it remains discreet during presentations or performances.

Suitable For Speech And Instrument Pickup

This microphone suits users needing a small, omnidirectional element for voice reinforcement or acoustic instrument amplification. The integral high-pass filter helps reduce low-frequency noise from handling or ventilation systems. It is not suited for applications requiring a directional pickup pattern to isolate a source in high ambient noise. Buyers needing a handheld transmitter or a headworn form factor should consider different configurations.

80 Hz High-Pass Filter Switch

The defining specification is the selectable 80 Hz high-pass filter built into the microphone body. This feature allows the user to toggle between a flat frequency response and a low-end roll-off to compensate for proximity effect or rumble. Correct use of this switch determines whether the microphone captures full-range warmth or rejects unwanted low frequencies for cleaner speech intelligibility.