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Decimator DMON-4S Quad SDI to HDMI Multiviewer and Converter

Model: DMON-4S

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About: Decimator DMON-4S Quad SDI to HDMI Multiviewer and Converter

Quad SDI to HDMI Multiviewer and Converter for 3G/HD/SD

The DMON-4S from Decimator Design includes 4 independent SDI inputs and 4 independent HDMI outputs.  This means you have the flexibility to either use it as an SDI to HDMI Quad Split, as an SDI to HDMI converter, or as a 1 to 4 distribution amplifier - all in one low-cost, miniature box.  The independent I/Os allow for a versatile combination of uses:

  • 4 independent SDI inputs to an HDMI Quad-Split output
  • 4 independent SDI to HDMI converters
  • 3 independent SDI to HDMI converters w/ a Quad-Split output
  • 2 independent SDI to HDMI converters with loop through
  • 1 SDI or Quad-Split to 4 HDMI outputs

The DMON-4S is controlled either via USB on a Mac/PC app, or on-unit using the LCD screen and button controls. The unit comes with a Locking DC Power Supply, USB Cable, HDMI Cable & Mounting Bracket.  Warranty for all Decimator Design products is 3 years.


  • 3G:
    • SMPTE 424M@2.97 and 2.967Gb/s
    • 1080p@60/59.94/50Hz
  • HD:
    • SMPTE 292M/274M/296M@1.485 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


  • Status for all 4 inputs
  • HDMI output type and source selection from SDI inputs 1 to 4Quad-Split output format selection
  • Quad-Split output aspect and type of 16:9 or 4:3 at either 90 or 100% of screen size
  • Quad-split individual aspect format for each input of Same as output, Letter-box or Pillar-box
  • Quad-split Border Enable
  • Quad-split mode reference of either Free-run or inputs 1 to 4


  • 1080p@60/59.94/50Hz
  • 1080i@60/59.94/50Hz
  • 1080p@30/29.97/25/24/23.98Hz
  • 720p@60/59.94/50/30/29.97/25
  • 625i50
  • 525i59.94


  • Up to 4 x (3G/HD/SD)-SDI Inputs
  • Input Equalization > 100M using Belden 1694A
  • USB for control and updates


  • 4 x mini HDMI Type C
  • Optional SDI Active Loop Out of inputs 1 and/or input 3


  • 79.5mm x 123mm x 29.5mm (3.1” x 4.8” x 1.2”)


  • +5V to +32V DC, 6 Watts
  • Positive Centre Pin is a Canadian authorized Decimator retailer.

Reviews: Decimator DMON-4S Quad SDI to HDMI Multiviewer and Converter

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Warranty: Decimator DMON-4S Quad SDI to HDMI Multiviewer and Converter Warranty:

30 Days

Manufacturer's Warranty:

Decimator Design warrants that this product will be free from defects in materials and workmanship for a period of 36 months from the date of purchase. If this product proves to be defective within this warranty period, Decimator Design, at its discretion, will either repair the defective product without charge for parts and labour, or will provide a replacement product in exchange for the defective product.