Blackmagic MultiView 4 HD

This compact multi‑viewer is designed for professional broadcast and AV environments where multiple SDI sources need to be monitored simultaneously on a single display. It provides a reliable and affordable solution for control rooms, flyaway systems, OB vans and technical racks, allowing operators to maintain clear visual oversight without the need for multiple separate monitors. The design is intentionally straightforward, focusing on stability, signal integrity and ease of use rather than network‑based complexity. 

The unit supports four independent multi‑rate 3G‑SDI inputs, each equipped with full frame re‑synchronisation. This ensures that sources with different video standards and frame rates can be displayed together without timing issues. SD and HD formats up to 1080p60 are supported, including both Level A and Level B signals, making the device fully compatible with a wide range of existing broadcast equipment. Each input operates independently, so any combination of formats can be monitored at the same time. 

Video output is provided via both HDMI and SDI, offering flexibility when choosing displays. The HDMI output allows connection to standard HD monitors or large, cost‑effective televisions, while the SDI output supports professional broadcast displays. The HDMI connection reads EDID information from the display to ensure correct resolution and stable operation. In a standard quad‑split layout, all four sources are shown clearly on a single screen, with sharp image quality suitable for continuous monitoring. 

Operational overlays enhance usability during live production. Optional on‑screen audio meters and custom labels can be enabled per view, giving immediate feedback on signal presence and audio activity. All configuration settings are stored internally and automatically restored on power‑up, ensuring consistent behaviour after power interruptions. Firmware updates and basic configuration are handled via USB, keeping setup simple and independent of any network infrastructure. 

Power is supplied via an included universal 12 V adapter with international socket adapters, making the device suitable for mobile and permanent installations across Europe and beyond. Its compact, rack‑friendly form factor integrates easily into existing systems, delivering dependable multi‑source monitoring at a very accessible cost point.