Sound Devices A20-HH Capsule Collar

Dual-Thread Mic Collar for Sound Devices A20-HH Handheld
The Sound Devices A20-HH Capsule Collar is a reversible threaded mount designed specifically for the A20-HH digital handheld wireless microphone. This single accessory gives engineers and performers complete capsule compatibility across both major standards—Sennheiser-style and Shure-style threads—without needing any additional adapters. It’s included with the A20-HH and enables fast swaps between compatible dynamic or condenser mic capsules based on performance requirements.

Flip the Collar to Switch Capsule Thread Types
Threaded on both sides, the A20-HH Capsule Collar supports Sound Devices’ CD1 capsule and all Sennheiser-compatible capsules on one side. When flipped over—just by removing three screws—it exposes the alternate thread that accepts Shure-compatible capsules. This streamlined design means one mic can support three capsule ecosystems with no clunky adapters or hardware modifications.

Designed to Support On-the-Fly Customization
The collar's quick-change design works seamlessly with the A20-HH modular system, which also includes interchangeable body shells and control rings. Whether you're preparing gear for a last-minute artist change or adjusting for venue-specific sound preferences, the reversible collar makes the A20-HH a truly universal wireless mic solution.

Perfect for Rental Houses and Touring Rigs
For production teams, rental companies, and touring engineers, capsule flexibility is essential. With this collar, the A20-HH becomes one of the most capsule-agnostic digital handheld microphones on the market. Carry fewer transmitters and more capsule options without compromising functionality or sound quality.

No Adapters or Third-Party Accessories Required
Unlike competing handheld systems that require proprietary adapters or one-size-fits-all thread conversions, this collar is built directly into the A20-HH design. It's a factory-standard component that works reliably under show conditions, whether you’re rehearsing or live on stage.

Keep Your Workflow Modular and Production-Ready
The A20-HH’s modular design isn’t just about looks—it’s about speed and adaptability. The Capsule Collar plays a key role in this workflow, offering a dependable connection that’s secure, low-profile, and engineered to resist the rigors of repeated setup and teardown across demanding schedules.

Optimized for the CD1 Capsule and Future Expansion
Sound Devices designed the collar to perfectly match its CD1 cardioid dynamic capsule, ensuring ideal thread engagement and consistent acoustic performance. As the Astral Series evolves, the collar ensures compatibility with future Sound Devices capsule innovations or third-party capsule choices.