Tag: A20-RX

A20-RX v7.50 Firmware

Download v7.50


  • Support for VHF transmission 


  • Limiter threshold changed to –6 dBFS; attack time changed to 1mS; release time to 100mS 


  • A20-TX transmitter battery level status is now fixed. 

Wireless Live-streaming Event

Dec 4, 2023
OnlineUnited States (US)

If you’ve heard about the impressive features that our Astral wireless series offers, but you’re wondering how best to fit the products into your setup, this live, interactive webinar is for you. Cody Heimann, a consultant for Sound Devices with a remarkable portfolio of live sound gigs, will host the streaming event to talk overall about the Astral line and how it coordinates with other products in a wireless sound system.

You are welcome to submit questions for Cody in the form below, and he will be taking questions live during the event, so you can get your questions answered.

To attend the event, you must fill out the form below.

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A20-Nexus Go

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Sound Devices L.A. Wireless Workshop

Sep 15, 2023 – Sep 18, 2023

Visit Sound Devices at stand 8.C95 at the IBC tradeshow, September 15th-18th in Amsterdam, to get hands-on demos of the latest additions to the Astral family – A20-Nexus Go and A20-TX. The newly introduced A20-TX digital wireless bodypack transmitter has a multipurpose input, flexible powering, and ultra-low-power e-Paper display. Also making its IBC debut will be the A20-Nexus Go multichannel true diversity wireless receiver with 169-1525 MHz global tuning range via SpectraBand, NexLink long-distance remote control of transmitters, and integrated RTSA (real-time spectrum analysis).  

The A20-TX transmitter and A20-Nexus Go receiver will join other Astral-family products in the Sound Devices booth, including the A20-Nexus multichannel, true diversity wireless receiver with SpectraBand, NexLink RTSA, and Power-over-Ethernet and audio via Dante; the svelte A20-Mini bodypack transmitter with GainForward and SpectraBand; and the A20-RX 2-channel slot-in portable true-diversity wireless receiver.  

We will also display our 8-Series line, which includes Scorpio, 888, and 833 mixer-recorders. Designed specifically for sound professionals’ workflows, each 8-Series mixer-recorder has unprecedented recording power and a rugged, efficient interface.   

We plan to celebrate our 25th anniversary in a special way at IBC this year. In addition to demoing our MixPre II Series audio mixers, with crystal-clear, ultra-low-noise Kashmir preamps, 32-bit float bit depth and a 192 kHz sample rate, we’ll have an opportunity for a stand visitor to win a limited-edition silver MixPre-3 II mixer-recorder. Visit stand 8.C95 to learn how to enter the drawing! 

Sound Devices L.A. Wireless Workshop

Aug 30, 2023
Los AngelesCAUnited States (US)

On Wednesday, August 30th, we invite you to join us at a special wireless training event held near Los Angeles. This free educational workshop will be a great opportunity to level up your wireless audio skills and learn about solutions for today’s RF questions.

Where: Group One Limited headquarters, 19801 Nordhoff Place #108, Chatsworth, CA 91311 

When: Wednesday, August 30th 

  • 10:00-12:00: Basic Wireless  
  • 12:00-1:00: Lunch 
  • 1:00-3:00: Advanced Wireless 

Whether you’re new to wireless or have a lot of experience, there will be something to learn. Led by Sound Devices’ RF Applications Engineer Gary Trenda and Technical Specialist Cody Heimann, the workshop will cover a range of topics, from the basics of frequency coordination to RF over fiber. From 10:00am-12:00pm, the courses will be focused on basic wireless topics. From 12:00-1:00pm, we will provide lunch and give you the opportunity to explore some wireless gear up close, including products from our partner companies in the Audiotonix group, Solid State Logic and Calrec. From 1:00-3:00pm, we will go through more advanced wireless audio topics, and then allow ample time for questions. You are welcome to attend one or both of the sessions. 

Seating is limited, so reserve your spot now by filling out the form below.

Astral Receiver Comparison

FeatureA20-NexusA20-Nexus GoA20-RX
Base Channels842
Expandable Channel Count12, 166, 8
100% Digital, True-diversity Wireless
Compatible with A20-Mini, A20-TX Transmitters
Tuning Range169-1525 MHz169 – 1525 MHz470 – 1525 MHz
NexLink Long Range Transmitter Control
Long Range and Standard Modulation
Real Time Spectrum Analyzer (RTSA)
AutoAssign frequencies from receiver to transmitters
Privacy Key
Antenna Inputs2×22×22
Cascade Outsvia 8-Series/SL-2
Active and Smart Antenna Supportvia 8-Series/SL-2
SuperSlot (Compatible with SL-2, SL-6)
Dock to 8-Series Mixer/Recordervia SL-2
Web App Control
Dante I/O8-16
AES Output8-164-82  (via A-TA3 adapter)
Line Output8-164-82  (via A-TA3 adapter)
Mic Output8-164-8
Headphone Output
Timecode Input
Wordclock Input
Auto Timecode Sync of Transmitters over NexLink
DC Outputs (for powering peripherals)via 8-Series/SL-2
DC Inputs212 (via A-TA3 adapter)