Roland VR-400UHD 4K AV Streaming Mixer

VR‑400UHD

The VR‑400UHD is a professional 4K audio/video streaming mixer / AV production “command center” — combining video switching, audio mixing, and live‑streaming capabilities into a single compact unit. It’s built for live events, livestreaming, corporate/educational broadcasts, church services, concerts, or any situation where you need to manage multiple video sources + audio + streaming in one seamless workflow.

 Key Features & Capabilities

• 4K Video input/output with multiple HDMI channels — supports up to 7 HDMI inputs (4 can be used simultaneously), all up to 4K/60p, with built-in scalers so you can mix 4K/HD, HDR/SDR, and different color formats without compatibility issues.

• Dual 7‑inch touchscreen control surfaces — giving you intuitive, direct control over video scenes, inputs/outputs, transitions, overlays, picture‑in‑picture (PiP), and more; ideal for live switching or streaming production.

• Scene-based composition & switching — you can build complex layouts (background + layers + overlays + keys + PiP), save up to 64 “scenes,” and recall them instantly. Great for events with multiple segments, presenters, or content types.

• Picture-in-Picture (PiP), key/overlay, DSK & multi‑layer support — lets you overlay graphics, titles, lower-thirds, secondary video feeds (e.g. presenters, camera + slides + overlay), giving professional broadcast‑style output.

• 14‑channel digital audio mixer built-in — includes multiple analog mic/line inputs (XLR/TRS combos + TRS + RCA), with preamps and phantom power; plus mixing of embedded digital audio from HDMI. Enables full audio mixing inside the same unit.

• USB‑C webcam output + live‑streaming support — you can output combined AV (video + audio) to a computer or streaming platform via USB‑C (recognized as webcam‑class interface), enabling clean 4K livestreaming without extra capture cards or converters.

• Versatile audio routing and processing — analog inputs, digital embedded audio, line inputs, audio effects / processing, level control — everything you need for clean, balanced audio for livestreams or events.

• Compact, rack‑mountable / portable form factor — smaller than a full broadcast rack; easier to transport and deploy for church, live‑event, mobile production, or studio‑on‑the‑go setups.