Sound Devices A20-Nexus Multichannel True-Diversity Receiver

Share

The next-generation Sound Devices A20-Nexus is expandable from 8 channels up to 16 channels with software licenses 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.

SpectraBand
SpectraBand technology delivers a tuning range of 470 – 1525 MHz in a single unit – an industry first. Experience ultimate flexibility as you find open spectrum away from the crowded UHF TV band. The included A20-Monarch antennas can receive the entire 470-1525 MHz range, keeping your kit small and tidy.

NexLink
Control your A20-Mini transmitter using the built-in long range remote control link. NexLink's advanced long distance modulation reaches even farther than the A20-Mini's long-range audio transmission.

Network Away
You've got options. Configure your A20-Nexus for Dante audio, use the built-in web server to control the receiver using the web browser on any computer, tablet, or phone, and even power the A20-Nexus remotely using Power-over-Ethernet (PoE).

Real-Time Spectrum Analysis
The days of waiting for a frequency scan to complete are over. Instantly visualize the fluctuating RF spectrum around you in real time, while running all channels of the audio.

GainForward
With the A20-Mini's GainForward Architecture, easily set the Mini's 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.

Go Cableless
Thanks to its half-rack size, the A20-Nexus is equally at home in a rack, in a bag, or docked to an 8-Series mixer recorder for a cableless kit.

Long Range
The A20-Nexus and A20-Mini deliver the longest transmission distance of any system on the market.¹ The state-of-the-art, 100% digital long-range modulation offers the same great audio quality (10 Hz – 20 kHz) as Sound Devices' Standard modulation scheme with a longer range for both line-of-sight and heavy multipath transmission.

Package includes:
(2) A20-Monarch SpectraBand antennas
(2) Articulating arm with clamp and 1/4-20 thread mount
(2) 30 in | 75 cm BNC to BNC cable
(2) 2.4GHz SMA Tilting antenna
(2) NexLink side mounting brackets with SMA to SMA cable

Sound Devices A20-Nexus Multichannel Receiver - Features:

• 8-channel ultra-high-performance, true-diversity receivers in a 1/2 rack size (8.0 x 6.6 x 1.6 inches)
• Expandable to 12- or 16-channels via software license (now available)
• Integrated Real Time Spectrum Analyzer (RTSA) and scanning for intuitive frequency coordination
• 470 MHz – 1525 MHz tuning range via SpectraBand Technology
• NexLink: integrated, long distance remote control of all wireless transmitters
• 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
• 16 channels of Dante audio-over-IP output to DB25 connectors on the back panel
• Wide, 6.2” color OLED array with touch for control and monitoring
• 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
• Supports GainForward Architecture: No gain setting on the A20-Mini transmitter
  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

• RF
  • Tuning:
    • 470 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 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: +20 dBu for 0 dBFS
    • Mic: -20 dBu for 0 dBFS
  • Digital Audio Output: AES3 balanced connection, 110 ohm output impedance
• POWERING
  • Sources:
    • DC Input: dual, redundant
    • 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, 2A min
    • 10 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: 14° to +131 °F | -10 ° to +55 °C
• PHYSICAL
  • Dimensions (H x W x D): 1.6 x 8.0 x 6.6 in | 4.0 x 20.3 x 16.7 cm
  • Weight: 2.8 lbs | 1.27 kg (unpackaged)