Sound Devices’ proprietary circuitry that enables the greatest access to legal RF frequencies: an unprecedented 169-1525MHz global tuning range. Learn more here


Sound Devices’ proprietary remote-control protocol, an innovative concept in wireless microphone receivers that gives robust, full remote control of transmitters from long distances. Learn more here


No more stopping the action on set. No more adjusting the transmitter gain on the talent. You can set your levels and make adjustments at your A20-Nexus Go receiver and not at the transmitter with GainForward. 


Time-saving feature that automatically scans tuning bands for clean frequencies and assigns them to multiple channels. The frequencies are then automatically pushed to NexLinked transmitters seamlessly. It takes just seconds to assign multiple wireless transmitters.


Astral-family products have garnered many awards for their groundbreaking features, including: 

Mix Magazine, Best of Show Award

A20-Nexus wireless receiver

2023 SVC Innovative Product Award

A20-Nexus wireless receiver

2023 AMPS Award for Excellence

Radio Receiver Unit: A20-Nexus

2023 AMPS Award for Excellence

Radio Mic Long-Range Software: A20-Nexus

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