Name: Sound Devices A20-Nexus 8-, 12-, or 16-Channel True-Diversity Wireless Receiver with SpectraBand
Brand: Sound Devices
SKU: A20-Nexus
Availability: InStock

Description

The future of wireless

Meet the half-rack receiver with an entire rack’s worth of features. The next-generation A20-Nexus is expandable from 8 channels up to 12 and 16 with additional software and features forward-thinking technologies like SpectraBand, the powerful NexLink remote-control link, real time spectrum analysis, and more. With multiple options for audio outputs, powering, and remote control, the A20-Nexus can seamlessly adapt to your workflow, both now and in the future.

8-channel ultra-high-performance, true-diversity receivers in a ½ rack size (8.0” x 6.6” x 1.6”).
Expandable to 12 or 16 channels via A20-Nexus 4-Channel Expansion License. Licenses are $2500 USD, or $250 USD for a 7-day rental, or $850 USD for a 30-day rental.
169 MHz – 1525 MHz tuning range via SpectraBand Technology.
NexLink: an advanced long-distance modulation that allows for remote control of wireless transmitters from the receiver.
Dante audio-over-IP of RF receiver audio.
Flexible powering: via PoE+, DC input, 8-Series, or AC mains (with optional adapter).
Web App control from browser on any computer, smartphone or tablet.
Full remote operation capability: Power via PoE, audio via Dante, control via Web App.
Dual DB-25 connectors for 16 channels of mic, line, or AES outputs
Convert 16 channels of Dante to analog and/or AES on DB25 connectors, for sending IFB, voice-of-god, and more from mixer to set.
Wide, 6.2” color OLED array with touch for control and monitoring.
Integrated Real Time Spectrum Analyzer (RTSA) and scanning for intuitive frequency coordination.
Optical Fiber Network option via SFP slot. SFP accepts a wide variety of modular network transceivers.
A20-QuickDock allows docking and undocking in seconds from 8-Series mixer-recorders with no tools.
The AutoAssign function automatically scans the current tuning band for clean frequencies and assigns them to multiple channels. The clean frequencies are automatically pushed to NexLinked transmitters.

Modular design: RF section (A20-Nexus) can be disconnected and remoted from 8-Series, as opposed to less-flexible integrated RF/Mixer/Recorder solutions.
All NexLink control is handled by A20-Nexus and/or its Web App instead of the 8-Series for maximum flexibility.
Full remote power-down: A20-TX and A20-Mini transmitters can be fully powered down via NexLink for excellent battery life. This alleviates the need for remote auto-RF-Power adjustment schemes. User is in full control of RF power settings.
Supports GainForward Architecture: No gain setting on the A20-Mini or A20-TX transmitters. Adjust gain at the receiver or mixer.
100% digital long-range modulation delivers the longest transmission distance of any system on the market.
Excellent audio quality, full 10 Hz – 20 kHz audio bandwidth.
RF SAW filters for excellent rejection of interference from nearby IFB or camera hop transmitters.
BNC timecode input for auto timecode sync of transmitters over NexLink.
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-Nexus digital audio outputs increased (Dante, MADI) to 64 channels
Flexible tone routing matrix.

SpectraBand

SpectraBand technology delivers a tuning range of 169 – 1525 MHz in a single unit – an industry first! Experience ultimate flexibility as you find open spectrum away from the crowded UHF TV band.

NexLink

With NexLink’s advanced long distance protocol, you can control your A20-Mini and A20-TX transmitters using the built-in long range remote control link.

Network away

You’ve got options. Use the built-in web server with any computer, tablet, or phone to control the A20-Nexus wherever your ethernet cable can take you. Power the receiver from a distance using Power-over-Ethernet (PoE) and remotely deliver audio via Dante. The possibilities are boundless.

Real Time Spectrum Analysis

The days of waiting for a scan to complete are over. Instantly visualize the RF spectrum around you in real time and coordinate frequencies all while monitoring audio.

GainForward

With the A20-Mini and A20-TX transmitters’ GainForward Architecture, easily set the gain, low-cut, and limiter directly on your A20-Nexus or mixer-recorder. This immediate, local control of gain means never having to adjust the gain on the transmitter again.

AutoAssign

Assigning frequencies to wireless transmitters used to take forever. Not with the A20-Nexus true diversity wireless receiver’s AutoAssign function. It automatically scans the current tuning band for clean frequencies and assigns them to multiple channels. The clean frequencies are then automatically pushed to transmitters linked to the NexLink protocol.

Specifications

Patents: The A20-Nexus is protected by US patents US10678294B2, US20190166523A1, International patent WO2018022209A1, and several patents pending.

RF

Tuning
- 169 to 1525 MHz (1055 MHz switching bandwidth)
- 25 kHz steps
- SpectraBand Technology for maximum rejection of out-of-band signals
- Available frequencies depend on country of operation
Modulation
- Proprietary, 100% digital RF modulation
- Standard or Long Range, selectable per channel
Spurious Rejection
- >100 dB typical
Cascade output
- 50 ohm
- 3.5 dB Insertion Loss from front BNC through rear BNC: It is recommended to use an external powered antenna to overcome the 3 dB splitting loss in the Nexus so that the receivers maintain excellent range.
- Wideband power split, pre-LNA
RF Bias output
- 12V, 200 mA each BNC
- Smart antenna support, Wisycom-compatible

Audio

Latency
- Standard modulation = 2 ms, analog or digital outputs
- Long Range modulation = 3.9 ms, analog or digital outputs
Audio Frequency Response
- 10 Hz–20 kHz, +/- 1 dB relative to 1 kHz
Dynamic Range
- > 130 dB with A20-Mini as transmitter
Output Level
- Line-level: +20 dBu for 0 dBFS
- Mic-level: -20 dBu for 0 dBFS
Audio Output Sample Rate
- 44.1, 48, or 96 kHz
Digital Audio Output
- AES3 balanced connection, 110 ohm output impedance
Audio-Over-IP
- Dante, 44.1 or 48 kHz sample rate

Network

Dante Audio-Over-IP
- 16 input/output channels
Control
- Web-based control and monitoring of all Nexus settings
Connections
- 2x RJ45 ports: For Dante and/or Control. Port 1 supports powering from PoE+
- 1x SFP: For Dante and/or Control. Compatible with Small Form-factor Pluggable (SFP) network transceivers

Powering

Sources
- DC Input: dual, redundant (highest voltage takes precedence)
- PoE+: 802.3at, 30W needed (standard 15W PoE 802.3af will not work)
- 8-Series (through unit-to-unit connector when docked)
- AC mains adapter (sold separately)
Levels
- DC input, 10 to 18V in, 3A minimum at 6.5 VDC
- 11 W idle, default configuration
- Extra power passed through for USB power, active antenna power, and DC output power
- USB-A: 5V, 500 mA output; supports keyboards, thumb drives, A20-Mini transmitters, and USB hubs

Environmental

Operating Temperature Range
- -10 °C to +55 °C
Dimensions (H x W x D)
- 4.0 cm x 20.3 cm x 16.7 cm
- (1.6 in x 8.0 in 6.6 in)
Weight
- 1.27 kg (unpackaged)
- 2.8 lbs (unpackaged)

What‘s in the box

A20-Nexus
2 x A20-2.4G antenna + mounts
2 x A20-Monarch antenna
2 x adjustable clamp and articulating arms
2 x BNC cables

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Sound Devices A20-Nexus 8-, 12-, or 16-Channel True-Diversity Wireless Receiver with SpectraBand