Dual-Channel Wireless Handheld Microphone System for Professional Vocals
The Audix AP42 OM5A is a dual-channel UHF wireless microphone system designed to give vocalists, presenters, and production teams reliable wireless performance with clear, controlled sound. This complete system pairs the R42 dual-channel diversity receiver with two H60 handheld transmitters equipped with OM5 hypercardioid dynamic capsules. It is built for live stages, houses of worship, corporate events, and touring applications where consistent signal stability and vocal clarity matter.
Reliable UHF Wireless Performance with Simple Setup
Operating in the 522 to 554 MHz frequency range, the R42 receiver provides 32 MHz of tuning bandwidth with 106 pre-coordinated frequencies. One-touch auto scan quickly identifies clean channels, while infrared sync instantly links the receiver to the handheld transmitters. Dual-channel operation allows two microphones to run simultaneously from a single receiver, making this system ideal for shared stages, duets, panel discussions, or lead and backup vocal use.
OM5 Hypercardioid Capsules for Focused Vocal Clarity
Each handheld transmitter features the OM5 dynamic microphone capsule, known for its tight hypercardioid pickup pattern and excellent off-axis rejection. This design isolates vocals from surrounding instruments and stage noise while providing strong gain before feedback. The OM5 capsule delivers articulate midrange detail, a controlled high-frequency presence, and the ability to handle sound pressure levels exceeding 144 dB without distortion, making it well suited for high-energy performances and loud stages.
Handheld Transmitters Built for Comfort and Durability
The H60 handheld transmitters feature a slim, well-balanced metal housing that feels natural in the hand during extended use. A soft-touch mute switch allows silent on and off control, while a high-contrast LCD displays group, channel, frequency, and battery status at a glance. Internal dip switches provide selectable AF gain settings and adjustable RF output power, giving audio engineers flexibility to optimize performance for different venues and stage layouts.
Professional Receiver Design for Touring and Installations
The R42 dual-channel receiver is housed in a rugged 19-inch rackmount chassis with an internal antenna combiner for reliable diversity operation. Balanced XLR and unbalanced 1/4-inch outputs provide flexible connection to mixing consoles and audio systems. The front-panel LCD shows RF and AF signal levels, frequency data, and battery information, allowing quick monitoring and adjustment during rehearsals and live events.
Designed for Scalable Wireless Systems
This system supports multi-channel wireless environments, allowing up to eight systems to operate simultaneously for a total of 16 microphones. Features such as adjustable AF and RF gain, selectable lock functions, and a ground-lift switch help ensure stable operation in complex RF conditions. Included accessories such as BNC antenna cables, rackmount hardware, and power supply make the AP42 OM5A ready for immediate deployment.