The Audix f50S is a Fusion Series handheld cardioid dynamic microphone offering high feedback immunity and a smooth, unhyped sound for vocals, speech, and instruments in studios, houses of worship, corporate events, and live stage applications. The element features a dynamic moving coil, which requires no external power. Its cardioid polar pattern attenuates off-axis noise caused by sources such as monitors, additional instruments, and room ambience.

The f50S produces a frequency response of 50 Hz to 16 kHz with moderately pronounced low-mid and high-mid frequencies. Its dynamic element is designed to handle loud input signals without distortion while providing over 20 dB of off-axis rejection. The gold-plated XLR 3-pin output ensures compatibility with most microphone preamps and mixer inputs, and the die-cast zinc alloy body with a steel mesh grille provides road-ready protection and durability. A silent, magnetic on/off switch is provided for convenient muting of the mic between speeches or performances. The f50S ships with a microphone clip and carrying pouch.