Decimator Design MD-QUAD

Quad-Split SDI to HDMI + SDI Multiviewer for 3G/HD/SD

3G/HD/SD-SDI Multiviewer / Quad-Split Mini Converter with 3G/HD/SDI-SDI and HDMI Outputs.

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£1,498.00 £1,248.33
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The MD-QUAD from Decimator Design is a low cost, miniature SDI Quad-Splitter with SDI and HDMI Outputs.  With four independent SDI inputs, you can now monitor your camera feeds without the hassle of ensuring all inputs are the same SDI standard.

Features include:

  • Monitor 4 independent 3G/HD/SD-SDI feeds
  • Select your output format over SDI and/or HDMI
  • Display any format of any frame rate simultaneously
  • Select any of the 4 inputs for pass-through
  • Control from a distance via USB on a Mac/PC app
  • Toggle one feed to fullscreen
  • Scaling
  • Turn on/off UMDs/Tallies/Audio Metering
  • Remote switch via GPI on RJ-45
  • Test Pattern Generator & Audio Tone Generator

The unit comes with a Locking DC Power Supply, HDMI Cable & Mounting Bracket.  Warranty for all Decimator Design products is 3 years.

  • On-screen audio id pop-up when selection audio source in Quad-Split mode
  • On-screen display pop-up when using the rotary to allow for use when without a PC
  • Low cost miniature (3G/HD/SD)-SDI 4 to 1 Quad Split or 4 to 1 input multiplexer
  • Selectable output format in Quad-Split mode
  • Low latency buffering for each input allowing non-synchronous inputs
  • Linked (3G/HD/SD)-SDI and HDMI outputs
  • 4 x (3G/HD/SD)-SDI inputs with auto detection (26 Formats supported in total)

8-Channel Audio metering for each quadrant with

  • The first two audio groups individually selectable.
  • Vertical or Horizontal Bars.
  • AES/EBU, VU, Extended VU, BBC, EBU, DIN and NORDIC Scales.
  • Bar & Float, Bar only or Float only (Float is not available for MQS serials).
  • Transparency adjustment.
  • Separate Bar and Float Ballistics control.
  • Adjustable Reference level.
  • Red, Yellow and Green Range adjustment.
  • Bar thickness adjustment.
  • Margin adjustment.

  • Each quadrant is independent of the others, allowing any 3G/HD/SD format of  any frame rate to be displayed simultaneously
  • Variable aspect ratios per quadrant
  • All 4 inputs can be displayed simultaneously on a single output
  • Pass-Through mode allowing any of the 4 inputs to be selected for output
  • In Pass-Through mode the selected input is passed through to both the  (3G/HD/SD)-SDI and HDMI outputs
  • A single tallies for each input is available from the GPI.
  • An extensive selection of user controllable functions via an easy to use rotary  encoder for menu selection. LEDs and a push button can then be used for status and control
  • USB port for control and updates
  • GPI on RJ-45 for remote switching
  • Locking DC Power Socket

The following is included with the unit

  • Power Supply, HDMI Cable, USB Cable and Mounting Bracket.
More Information

Video Formats

3G: (SMPTE [email protected] and 2.967Gb/s)

  • 1080p@60/59.94/50Hz

HD: SMPTE 292M/274M/[email protected] and 1.435Gb/s

  • 1080i@60/59.94/50Hz
  • 1080p/psf@30/29.97/25/24/23.98Hz
  • 720p@60/59.94/50/30/29.97/25/24/23.98Hz
  • SD: (SMPTE 259M@270Mb/s) 625i50, 525i59.94


Menu Options

  • Input status for all 4 inputs.
  • Output format.
  • Output selection of Quad Split or input 1, 2, 3 or 4. 
  • Output aspect and type of 16:9 or 4:3 at either 90 or 100% of screen size.
  • Individual aspect format for each input of Same as output, Letter-box or Pillar-box.
  • Border Enable.
  • Quad split mode reference of either Free-run or input 1.



  • Input Equalization > 100M using Belden 1694A 
  • USB for control and updates.
  • GPI on RJ-45



  • 1 x 10-bit (3G/HD/SD)-SDI Re-clocked.
  • HDMI


LED Status

  • Power.
  • 4 x Signal lock and rate.



  • +5V to +24V DC, 6 Watts 
  • Positive Centre Pin.


Dimensions and Weight

  • 90mm x 94mm x 23mm (3.5” x 3.7” x 0.9“)