Decimator Design DMON-QUAD 4-Channel 3G-SDI Multiviewer

Compact Quad-Split Multiviewer with HDMI and SDI Output Options
The Decimator Design DMON-QUAD is a portable 4-channel multiviewer and multiplexer that lets you monitor four 3G/HD/SD-SDI sources simultaneously on a single screen. Supporting input resolutions up to 1080p60, this unit offers both HDMI and SDI outputs for flexible monitoring in live production, broadcast control rooms, or mobile video rigs. Whether you're combining sources for quad-view display or need a multiplexer to streamline multiple video feeds, the DMON-QUAD delivers stable signal handling in a compact, standalone form factor.

Versatile Input and Output Configuration for Any Workflow
Equipped with four SDI inputs, the DMON-QUAD accepts a mix of formats, frame rates, and aspect ratios across all channels. The output can be sent via HDMI or SDI, providing redundancy or display flexibility depending on your monitoring needs. Each input operates independently, making this unit ideal for managing content from various sources without the need for conversion before input.

Built-In Layout Options and Custom Display Control
This unit comes loaded with preset display layouts and also allows for user-customized configurations, ensuring that you can organize your quad-view exactly how you need it. Each window supports individual horizontal or vertical flipping, helping operators align camera feeds regardless of how they're mounted or oriented in the field. UMD and tally overlays are also adjustable per window, with customizable positioning, size, and color.

Full Audio Metering and Tally Integration
Monitor embedded SDI audio with up to 8 channels of audio metering per window. Each audio overlay can be turned on or off and repositioned as needed. The unit supports audio ID overlays and is tally-compatible via RS-422/485 using the TSL protocol. This enables tally data to appear as either border outlines or tally boxes, with up to four tallies supported per channel for flexible live production workflows.

Low Latency Frame Buffering for Unsynchronized Inputs
For productions working with unsynchronized sources, the DMON-QUAD offers low latency frame buffering that stabilizes video display without sacrificing timing accuracy. This ensures that asynchronous feeds appear simultaneously and reliably in your multiview output, making it a reliable tool for mixing field, studio, or remote signals.

Convenient Features in a Rugged Housing
The DMON-QUAD is housed in a durable aluminum enclosure that’s suitable for field use and studio environments alike. It supports firmware updates via USB and allows users to switch quickly between inputs using full-screen scaling. Output format can be selected manually in both full-screen and multi-viewer mode. Pass-through functionality enables clean output of a selected source via both HDMI and SDI.