SOUND DEVICES A20-SuperNexus

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al.supernexus

Sound Devices A20-SuperNexus 16-32 channel HexVersity rackmount SpectraBand + VHF receiver, 169-1525 MHz

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The A20-SuperNexus is a gamechanger. A 16-channel receiver with HexVersity (2- to 6-antenna diversity), expandable to 32 channels via software licenses - all in just a 1U 19" rack, A20-SuperNexus keeps your kit small and saves space in your rack.

Take it on tour without worrying about tuning bands - it boasts a 169-1525MHz tuning range for worldwide operation. A20-SuperNexus gives you peace of mind with its RF Mirror Mode for full redundant operation.

MAIN FEATURES:

16 channels all with HexVersityr (2-, 3-, 4-, 5-, or 6-antenna diversity) in 1U rack space
expandable to 32 channels (all with HexVersity) in the same rack space via Software Licenses
169 1525 MHz tuning range for full global coverage
RF Mirror Mode for full redundant operation

ADDITIONAL FEATURES:

Native Dante, MADI, AES, and Analog outputs
spectraBand with 3 Tuning Bands for a total of ~72 MHz of operating bandwidth for transmitters
optional A20-Opto expansion box to add Optocore audio I/O and full redundant power supplies
simple 1-minute operation to change countries for entire system
built-in long-range NexLinkr remote control of all transmitters
integrated Real Time Spectrum Analyzer (RTSA) and scanner for intuitive frequency coordination
autoAssign: automatic deployment of multiple clean frequencies in seconds
built-in 6-to-2 RF combiner for multizone events
6 network ports (2 x RJ45, 4 x SFP) configurable for Dante, Dante Redundancy, and Control
web App control from browser on any computer, smartphone, or tablet
bridging between MADI, Dante, AES, Optocore, and Analog
wide, 12.4" color OLED array with touch for control and monitoring
optical Fiber Ethernet option via two SFP slots
supports GainForwardT Architecture: No gain setting on the A20 transmitter. Adjust gain at the receiver or mixer
100% digital long-range modulation delivers the longest transmission distance of any digital system on the market
RF SAW filters for excellent rejection of interference transmitters
excellent audio quality, full 10 Hz 20 kHz audio bandwidth
BNC timecode input for auto timecode sync of transmitters over NexLink
three BNC antenna input pairs, each compatible with passive, bias-powered, and smart antennas. Configurable for HexVersity or combiner modes
cascade out option on rear BNCs for cascading to other receivers
automatic Antenna zero loss loop through in the event of power loss for redundant operation
front-panel 3.5 mm and ¼ inch headphone outputs
USB-A and USB-C ports for thumb drives, keyboards, transmitter pairing, and timecode syncing Support for USB hubs
PoE+ output for powering external PoE+ powered device, including the A20-Outpost-NL
on-the-fly audio output routing changes directly from the A20-HH and A20-TX. Ideal for talkback, guitar tuning etc.
wireless transmitter pairing to Astral receivers in addition to pairing via USB cable
Ad-hoc handoff of transmitters' Nexlink control between Astral receivers, ideal for large reality shows
A20-SuperNexus digital audio outputs increased (Optocore, Dante, MADI) to 64 channels
flexible tone routing matrix

Specifications

RF:

Tuning:

169 to 1525 MHz (1356 MHz switching bandwidth)
25 kHz steps
SpectraBand Technology for maximum rejection of out-of-band signals
Available frequencies depend on country of operation
3 bands each with their own assignable filter range, typically 24 MHz wide for a total of 72 MHz simultaneously usable bandwidth.

Modulation:

Proprietary, 100% digital RF modulation
Standard or Long Range, selectable per channel.

Spurious Rejection:

>100 dB typical

Cascade output:

50 ohm
+1 dB gain from BNC input to output, less than 1 dB input to output loss in the event of power failure.
Band-limited as per LNA pre-select filter.

RF Bias output:

12V, 200 mA each BNC
Smart antenna support, Wisycom-compatible

Antenna Inputs:

Multiple Antenna Modes switchable between Diversity, 4versity, 4versity + 1 Pair, HexVersity, 3-Zone Combiner, 2-Zone Combiner + 1 Pair, 3-Way Diversity, Diversity + 1 Pair

AUDIO:

Latency:

Standard modulation = 2 ms, analog or digital outputs
Long Range modulation = 3.9 ms, analog or digital outputs
T&M (Test and Measurement) modulation = 7 ms, analog or digital outputs

Audio Frequency Response:

10 Hz-20 kHz, +/1 dB relative to 1 kHz

Dynamic Range:

> 130 dB with an Astral transmitter

Analog Output:

RJ45 connectors conforming to the AES72 Type 1M pin-out standard, balanced connection

Analog Output Level:

Line: +20 dBu for 0 dBFS
-10: +6 dBu for 0 dBFS
Mic: -20 dBu for 0 dBFS

Tone Generator:

1 KHz tone, adjustable from -20 to 0 dBFS

Audio Output Sample Rate:

48 or 96 kHz

Digital Audio Output:

MADI: unbalanced BNC, 75 ohm output impedance
AES3: RJ45 connectors conforming to the AES72 Type 1M pin-out standard, balanced connection, 110 ohm output impedance
Optocore with optional A20-Opto-HMI (HMI connector) or A20-Opto-ST (ST connector)

Audio-Over-IP:

Dante, 48 or 96 kHz sample rate

Sync:

LTC / Wordclock, input impedance 75-ohm, BNC
Dante
MADI, unbalanced BNC, 75 ohm output impedance

NETWORK:

Dante Audio-Over-IP:

32 input/output channels.
Primary and Secondary ports for Dante Redundancy

Control:

Web-based control and monitoring of all A20-SuperNexus settings GPIO with the optional A20-Opto-HMI or A20-Opto-ST accessory Connections:
2x RJ45 ports and 2x SFP ports: For Dante, Control, and A20-Outpost-NL

NEXLINK:

Protocol:

2.4 GHz, proprietary frequency-hopping backlink control of transmitters over long distance

Connections:

Front or rear diversity pair
SMA-F ports for connecting 2.4 GHz SMA-M antennas

USB:

Type:

USB-A: 5V, 1.5A output, supports keyboards, flash drives, Astral transmitters, and USB hubs
USB-C: 5V, 3A output, supports keyboards, flash drives, Astral transmitters, and USB hubs

Drive Format: