Sound Devices A20-HH Control 3 - Control Ring

Add Three-Button Flexibility to Your A20-HH Microphone
The Sound Devices A20-HH Control 3 ring gives performers and engineers full control over key microphone functions with a customizable three-button interface. Designed specifically for the A20-HH digital handheld transmitter, this modular ring snaps easily into place and brings tactile, real-time command access to users who need quick changes during fast-paced productions.

Assign Custom Commands with LED Feedback
Each of the three buttons on the Control 3 ring features an integrated multicolor LED for real-time feedback on the microphone’s status. Buttons can be individually assigned in the A20-HH menu to control a variety of functions such as mute, RF power, record start/stop, or macros. Whether it’s managing cue switches, enabling talkback, or toggling power modes, this ring supports detailed, reliable control in dynamic environments.

Ideal for Broadcast, Theater, and Touring Applications
This three-button design is perfect for talent and crew working in high-demand applications. From stage actors triggering cues to broadcast talent managing live on-air transitions, the A20-HH Control 3 gives users complete command over microphone behavior with precision. It’s also well-suited for musical artists, corporate presenters, and public speakers who want control without relying solely on remote software.

Part of the Interchangeable Control Ring Family
The Control 3 ring is one of four modular options available for the A20-HH, joining the Control 0 (no buttons), Control 1 (single button), and Control Switch (toggle) variants. All rings are hot-swappable and install in minutes, making it easy to configure your mic for different users, shows, or production demands. This system is built for those who value adaptability without compromise.

Supports Talkback and Aux Routing Functions
One of the most powerful features of the A20-HH Control 3 is its support for Aux audio routing. This lets users activate a talkback channel or trigger re-routing of their audio signal through a connected Sound Devices Astral-series receiver. Whether you're onstage, backstage, or on the sidelines, this capability enables direct communication with engineers, producers, or stage managers—without adding extra gear.

Built for the Demands of Live Production
Made for seamless integration with the A20-HH’s NexLink wireless control and GainForward architecture, the Control 3 ring fits into a system already optimized for reliability and ease of use. Even with all controls accessible via NexLink, having physical, programmable buttons gives end users quick, intuitive access during performances or broadcasts—especially when timing matters most.