How to Build a Scalable Video Distribution System

When planning a project that you expect to scale, sometimes to 10× or more video sources and displays, starting with the right architecture can save significant time, cost, and rework down the line. While traditional HDMI matrix switchers are a solid entry point, they are typically fixed in size (such as 4×4, 8×8, or 16×16). This works well initially, but once you need to add more sources or displays, you’re often forced to stack additional units or replace the system entirely. And once you get to that point 

For projects where long term scalability matters, two hardware based video routing architectures are most commonly recommended: AV over IP (AVoIP) and Modular Matrix Systems.

AV over IP (AVoIP) Scalability

AV over IP solutions deliver high quality audio and video over standard IP networks, reducing cabling complexity and often leveraging existing LAN or WAN infrastructure. These systems work by using encoders and decoders connected to a network switch. HDMI sources are encoded into IP video streams, transmitted across the network, and then decoded back to HDMI for displays such as TVs, monitors, or video walls.

Scaling an AVoIP system is straightforward. To add more sources or displays, you simply add additional encoders or decoders to the network and begin routing video immediately. As long as your network switch can support the required bandwidth and device count, the system can grow without major architectural changes. While most AVoIP platforms do have a maximum supported number of endpoints, that limit is typically high enough for even large-scale installations.

Modular Matrix Systems Scalability

Modular matrix systems use a chassis-based, plug-in architecture, allowing users to add or remove input and output cards as needed. For example, the BZBGEAR BG-MC-Series offers interchangeable input and output modules for HDMI, DVI-U, VGA, SDI, HDBaseT, and fiber, with each card supporting four channels.

These systems scale by expanding within the chassis. Different chassis models support different maximum card counts, giving users flexibility in system size. Compared to fixed-size matrix switchers, modular matrices are more adaptable because input and output formats can be changed over time. A user might start with a 36×36 chassis, install only the cards needed for the initial deployment, and add more cards later as the system grows, without replacing the core hardware.

Need a solution? Take a look at our Modular Matrix and AVoIP solutions!