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Crestron® 8-Channel 4K HDMI® Output Blade
Crestron® 8-Channel 4K HDMI® Output Blade 0

Crestron® 8-Channel 4K HDMI® Output Blade

Model #: DMB-4K-O-HD
At a Glance
Crestron® 8-Channel 4K HDMI® Output Blade for DM® switchers with modular output blade slots
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Get to know this product.

Provides eight HDMI® outputs with built-in 4K scaling for any DigitalMedia™ Switcher with modular output blade slots.

The DMB-4K-O-HD is an output blade designed for use with any blade-based Crestron® DigitalMedia™ Switcher. It provides eight independent HDMI® outputs with complementary analog audio outputs. The HDMI outputs are each capable of handling Full HD 1080p, Ultra HD, 2K, and 4K video signals with support for HDCP 2.2, Deep Color, and high-bitrate 7.1 audio. Built-in 4K scaling enables the devices connected to each HDMI output to handle any video resolution from NTSC 480i to DCI 4K. DVI signals are also supported using HDMI-to-DVI adapters or interface cables. The analog audio outputs are enabled using the optional Analog Audio Breakout Box, which provides support for balanced or unbalanced stereo line-level signals.

4K/60 Scalers

  • An independent, high-performance 4K scaler is provided at each output to ensure that input sources of any resolution or frame rate can be routed and displayed reliably on virtually any display device without compromising the original input signal. As part of a DM® switcher with many outputs, this allows any video or computer source to be viewed simultaneously on multiple disparate displays, scaling the signal up or down to match the native resolution of each display.
  • No matter what source is selected, or where it’s routed, the DMB-4K-O-HD helps to ensure an optimal image on every screen. It can take any input resolution from standard definition NTSC 480i to ultra high-definition DCI 4K, and scale it beautifully to any output resolution up to DCI 4K (4096 x 2160 @ 60 Hz). Interlaced sources are converted to progressive scan using motion-adaptive deinterlacing. Intelligent frame rate conversion enables support for 24p and PAL format sources. 3D signals are converted to 2D. Fully automatic operation eliminates any complicated setup by utilizing the displays’ EDID to configure each scaler.

Video Wall Processing

  • The DMB-4K-O-HD has another trick up its sleeve, providing zoom capability and bezel compensation on each output to display just a portion of the source image. Using this feature, up to eight output cards may be combined to provide processing for a video wall composed of up to 64 individual displays. Video wall configurations up to eight wide by up to eight high are supported.

Audio Extracting

  • Each HDMI output on the DMB-4K-O-HD is accompanied by a balanced analog audio output, allowing stereo audio signals to be extracted from the digital stream and fed to a sound system. The analog audio outputs are enabled using the optional Analog Audio Breakout Box (model AUD-BOB-1602).

CEC Embedded Device Control

  • DigitalMedia offers an alternative to conventional RS-232 and IR display control by harnessing the CEC (Consumer Electronics Control) signal embedded in HDMI. Through its connection to a control system (via the DM switcher), the DMB-4K-O-HD provides a gateway for controlling display devices right through their HDMI connections, potentially eliminating the need for any dedicated control wires or IR emitters.
  • Please refer to the DigitalMedia Resources Webpage at for additional design tools and reference documents.

Key Features

  • Modular output blade for a DM-MD64X64 or DM-MD128X128 switcher
  • Provides eight independent 4K HDMI® outputs
  • Includes a discrete 4K/60 scaler on each output
  • Upscales video and computer sources to match the native resolution of any screen up to Ultra HD and 4K
  • Downscales 4K, UHD, and ultra high-resolution computer signals to enable viewing on 1080p and lower-resolution displays
  • Handles any input resolution from standard NTSC 480i or PAL 576i, to UHD and 4K
  • Provides intelligent frame rate conversion
  • Includes content-adaptive noise reduction
  • Includes motion-adaptive de-interlacing
  • Allows adjustable overscan or underscan up to 7.5%
  • Provides automatic 3D to 2D signal conversion 
  • Supports up to 8x8 video wall processing using multiple outputs
  • Handles Dolby® TrueHD, Dolby Atmos®, DTS-HD®, and uncompressed 7.1 linear PCM audio
  • Analog audio outputs enable stereo audio de-embedding via the optional AUD-BOB-1602 breakout box 
  • Includes programmatically controllable volume control on each analog audio output 
  • Enables device control via CEC
  • HDCP 2.2 compliant
  • Occupies a single DM switcher output blade slot


Connector Type:HDMI Out x 8



Misc. Specs

Product Weight (lbs.)1.6000
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