Netbox 8 AD

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Dante IP audio Analogue to Digital interface with 8 inputs and 8 outputs (4 analogue and 2 digital stereo). The digital I/O can be AES/EBU, SPDIF or USB standard to ease connectivity. 4 GPI and 4GPO are available for remote control (GPO port includes power supply pin). Rack, desk or wall mountable. This allows you to add any device to the Dante AoIP network. This is a plug and play technology with automatic detection of the hardware and simple audio routing.


  1. Power-ON LED. Indicates the device’s power supply status.
  2. LAN LEDs. Indicate the status connection of the audio over the following local area network ports: LAN 1 (main interface) and LAN 2 (secondary interface).
  3. Audio level LEDs. Each LED indicates the level of each device’s input or output channels.


  1. Power input: Netbox 8 has an input for an external power supply (provided).
  2. Ethernet ports (LAN 1 and LAN 2). Two Ethernet ports: LAN 1 must always be wired, while LAN2 is to be connected only when the system is configured in “Daisy Chain” mode or a redundant system is set up.
  3. GPIO connectors (DB15). Netbox 8 has a single connector including 4 GPI and 4 GPOs. All the connectors have a common ground and provide a 5V reference signal. Thanks to the open protocol implemented, operation with third-party devices is possible, allowing GPI and GPO transportation between systems using the IP network.
  4. AES-3 / SPDIF digital inputs and outputs, also using female DB15 connectors. 4 dual circuits per connector, 1 input + 1 output connectors.
  5. Analogue inputs and outputs use female DB15 as well: 4 circuits per port. 1 input + 1 output ports.
  6. USB digital inputs / outputs. When the back-switch is set to its lower position, Netbox 8 has its second dual digital input over a Type-B USB connector labeled as “USB”. The second output is both present in the USB and through the DB15 connectors, no matter what the switch position is set to.

General Features

  • Multi-channel audio connectivity in program production centres through simple Ethernet cabling
  • Double Ethernet Audio over IP connections in all AEQ consoles and digital matrixes.
  • Standalone, double audio over IP interfaces, making audio input and output connections to central controls, link dispatches, analogue studios, OB locations and any other locations where an AEQ digital mixing console is not available.
  • The system is usually structured as a star-topology using Gigabit Ethernet switches. For smaller installations, the system can be cascaded  or “daisy chained”, as network interfaces are duplicated.
  • Where maximum availability is a design goal, the network can be wired with duplicate switches, ensuring uninterrupted operations with redundant paths

Netbox Tool application
Setup Wizard running over Windows operating systems, offering the following features:

  • IP configuration and synchronization.
  • Input and output gains control, stereo pairings and phase (Figure 1).
  • GPIO configuration, selection of the network devices receiving its GPI and pairing of physical and virtual GPIO (Figure 2).
  • IP addresses configuration to send the vumeters for any of the device inputs (analogue, digital or Dante), in order to link to Visual Radio systems.

“Dante Controller” application
Running over Windows operating system, offering the following features:

  • View all Dante-enabled audio devices and their channels on the network.
  • View Dante-enabled device clock and network settings.
  • Route audio on these devices, and view the state of existing audio routes.
  • Lock and unlock Dante devices.
  • Change the labels of audio channels.
  • Customize the receive latency (latency before play out).
  • Save audio routing presets.
  • Apply previously saved presets.
  • View and set per device configuration options.
  • View network status information, including: multicast bandwidth across the network and transmit and receive bandwidth for each device.
  • View device performance information, including latency statistics and packet errors.
  • View clock status information for each device, including frequency offset history and clock event logs.

Technical Specifications

Inputs and outputs:

  • Analogue channels: 4 bidirectional channels.
  • Dual or Stereo digital channels: 2 bidirectional channels.
  • Dante / AES 67 channels: 8 bidirectional channels.
  • Balanced electronically analogue line-level inputs and outputs.
  • Maximum analogue input and output level: +24 dBu.
  • Nominal analogue input and output level: +4 dBu (-20 dBFS).
  • Bandwidth: 20 to 20.000 Hz @ +/- 0.5 dB.
  • Input and output gain adjustment range: +12 dB / – (individually or in pairs)

NETBOX 8 AD provides a single connector including 4 GPI and 4 GPOs that may be used to perform any of the following functions:

  • Transportation of signalling between devices
  • Informing about audio presence at any input.
  • Informing about audio absence in any output.
  • Remote muting of any output.
  • Activation and triggering of macros and salvos.

Physical GPI and GPO are standard GPIO, while virtual GPIO use AEQ’s proprietary protocol, although it is starting to be implemented by several integrators. GPIO can also be transported through the IP network between compatible devices. This way, a GPIO can drive GPOs in other equipment. This is what we call “Virtual GPIO”.

DANTE Network Technology:

  • Data format: Dante Audio over IP technology. AES 67 compatible
  • Plug-and-play technology – automatic detection of the hardware and simple audio routing.
  • Precise sample-level synchronization, even through several switches.
  • Very low and deterministic delay in the entire network.
  • Flexible and scalable network topology, supporting a great number of audio transmitters and receivers.
  • Supports a single integrated network used for audio, video, control and monitoring. Compatible with other kinds of traffic using QoS management.
  • Uses low-cost, off the self network infrastructure.
  • 24-bit , 48 KHz. audio resolution.
  • Delay: 1-2 ms (@ 48 KHz typical, depending on network performance and complexity).
  • 2 RJ45 Ethernet ports per interface, 1000 BASE-T, transformer isolated, that can be used for redundancy or daisy-chain connections.
  • Binary rate: 100/1000 Mbps.
  • Maximum segment length: 100m max. over CAT5e or better cabling.

Versions Available:

  • Netbox 8 AD: 8 I/O Dante, 4 I/O Analog, 2 I/O Digital Dual Stereo.
  • Netbox 32 AD: 32 I/O Dante, 16 I/O Analog, 8 I/O Digital Dual Stereo.
  • Netbox 32 AD 2PS: Features of Netbox 32 AD with dual Power Supply.
  • Netbox 32 AD MX: Netbox 32 AD inputs and outputs with routing and mixing functions.
  • Netbox 32 AD MX 2PS: Features of Netbox 32 AD MX with dual Power Supply.
  • Netbox 32 AD VOX: Inputs and outputs of Netbox 32 AD with VOX CONTROL function for Visual Radio.
  • Netbox 32 AD VOX 2PS: Features of Netbox 32 AD VOX with dual Power Supply.