Decimator Design DMON-4S: Quad (3G/HD/SD)-SDI to HDMI Multi-Viewer and Converter

Decimator Design
SKU: DD-4S Brand:

£399.00 ex.Vat £478.80 inc.Vat

Available to Order

Product Description

Decimator Design DMON-4S: Quad (3G/HD/SD)-SDI to HDMI Multi-Viewer 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 Windows 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.


• Includes 4 independent mini HDMI outputs that can each output any of the
four (3G/HD/SD)-SDI inputs or a Quad-Split of all them.
For example you could use the unit to have:
-  4 independent SDI to HDMI converters
-  3 independent SDI to HDMI converters with a quad-split output
-  2 independent SDI to 2 x HDMI converters with loop through
-  A single SDI or Quad-Splt to 4 x HDMI outputs

• Inputs 2 and 4 can be individually changed to output active loop copies of
inputs 1 and 2 respectively.

• Quad-Split mode allows selection of audio from any input.

• The DMON-4S is a truly portable converter, that incorporates our new easy
to use LCD and button control system. This gives you easy access to all of
the amazing features without using complicated LED/button control,
dip switches or having to carry around a computer to change a simple setting.

• This unit also includes:
-  USB port for control and firmware updates
-  Heavy duty metal box
-  Metal Thread Locking DC Power Socket
-  Power Supply, HDMI Cable and USB Cable







  • 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



  • 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

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