grandMA3 Consoles and the NPU Explained

MA Lighting's grandMA3 consoles are the heart of any lighting control system, available in several form factors to suit different applications. The flagship grandMA3 full-size offers up to 8,192 parameters (4,096 HTP + 4,096 LTP) and 64 DMX universes, with a large multi-touch screen, motorized faders, and extensive physical controls. The grandMA3 light provides a more compact footprint with 4,096 parameters and 32 DMX universes, while the grandMA3 compact is a portable solution with 2,048 parameters and 16 DMX universes. All consoles run the same grandMA3 software, ensuring seamless show file compatibility across the range.

Each console operates as a standalone controller but can also act as a node in a grandMA3 session, sharing control with other consoles, onPC stations, and NPUs. The parameter count determines how many individual fixture attributes (e.g., dimmer, pan, tilt, color) you can control simultaneously — critical for large-scale productions with hundreds of moving lights and LEDs.

For pre-visualization, programming offline, or budget-conscious setups, grandMA3 onPC replicates the console's software on a standard Windows PC. It offers the same user interface, effects engine, and show file compatibility, but with limitations: without a hardware key (e.g., a grandMA3 command wing or NPU), onPC is limited to 2,048 parameters and 8 DMX universes. Adding a command wing provides physical faders and buttons while unlocking up to 4,096 parameters. For full-scale shows, an NPU is required to expand parameter count and DMX output.

onPC is ideal for programming offline, running backup sessions, or controlling smaller events. It can participate in a grandMA3 session over a network, allowing multiple operators to work on the same show simultaneously.

The Network Processing Unit (NPU) is a dedicated hardware device that processes lighting data and outputs DMX, Art-Net, or sACN over Ethernet. It does not have a user interface or physical controls — its sole purpose is to handle parameter processing and network distribution. Each NPU adds up to 4,096 parameters and 64 DMX universes to a grandMA3 system. Multiple NPUs can be combined to reach the maximum system capacity of 250,000 parameters and 4,096 DMX universes.

The NPU connects to the same network as consoles and onPC stations, joining a grandMA3 session automatically. It receives show data from the session master and processes it in real-time, outputting control signals to fixtures via its four Ethernet ports (each configurable for DMX over IP, Art-Net, or sACN). For redundancy, NPUs can be configured in a master/backup pair, automatically taking over if the primary unit fails.

You need an NPU when your show requires more parameters or DMX universes than your console or onPC can provide natively. For example, a grandMA3 compact (2,048 parameters) controlling a festival with 100 moving lights and 200 LED pars may exceed its capacity — adding one NPU doubles the parameter count to 4,096. Similarly, if you need to output to more than 16 DMX universes (the compact's limit), an NPU expands that to 64 universes.

NPUs are also essential for distributed processing in large venues or touring productions. By placing NPUs near fixture clusters (e.g., backstage or in dimmer rooms), you reduce cable runs and network latency. For mission-critical events, redundant NPUs ensure zero downtime — if one fails, its backup takes over seamlessly.

grandMA3 systems use a session-based architecture where all devices (consoles, onPC, NPUs) communicate over a standard Ethernet network. The session master (usually the primary console) synchronizes show data, including cue lists, effects, and parameter values. NPUs automatically discover the session and begin processing. Multiple consoles can operate in a master/backup configuration, with one taking over control if the master goes offline.

For large networks, MA Lighting recommends using managed switches with IGMP snooping to optimize multicast traffic from Art-Net and sACN. The NPU's four Ethernet ports can be split into separate VLANs for control, backup, and fixture networks, enhancing security and reliability.

In professional live events, downtime is not an option. grandMA3 NPUs support 1:1 redundancy: two NPUs configured as a pair, with the backup mirroring the primary's processing. If the primary fails, the backup takes over within seconds, maintaining all DMX outputs. Consoles can also be redundant — a backup console can run the same show file and take over control if the master console fails.

For ultimate reliability, use redundant NPUs and consoles on separate power circuits and network paths. MA Lighting's MA-Net3 protocol ensures low-latency, deterministic data transfer, and the system can handle up to 250,000 parameters across multiple NPUs, making it suitable for the world's largest productions.