Si3 (discontinued)

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The Soundcraft Si3 is designed for live use on both touring sound systems and in fixed installations and its intuitive operation and high input and bus count makes it a perfect choice for House of Worship sound systems. Theatre users will also find the Soundcraft Si3 very applicable in their area.

Soundcraft has revisited the control topology employed on the ground-breaking Spirit 328 and 324 digital consoles, and made it even easier. The model is this - above each fader is a rotary encoder, the function of which changes according to the mode selected. This ‘bank’ of encoders, known as the VCS or Virtual Channel Strip  can be set to control every function of a channel (known as Channel mode), so mic gain, EQ, dynamics, auxes, panning are all controlled as if you had a normal analogue channel strip laid sideways in front of you. The VCS also incorporates all the switching you would find on an individual analogue channel strip (48v, Phase Reverse, EQ In etc.). Alternatively, in what is called Global mode, each encoder controls the same function for each channel. So, for example, the encoders could control all the mic gains, pans or a chosen Aux bus (very useful for creating monitor mixes).

Si Series Awards

To learn more about the Soundcraft Si3, check out our 'Operational Overview' video.

One Box


  • 64 inputs, 4 stereo inputs, 24 bus outputs
  • 8 matrix outputs, 12 VCAs, 8 mute groups
  • 4-band fully parametric EQ with high and low cut filters
  • On-board dynamics
  • Four independent Lexicon processors
  • A physical output and meter for every bus



On the rear of this highly-featured console are all the I/O connectors you’ll need. Sixty-four XLR’s for the mic/line inputs, 4 stereo line level inputs, 24 bus output XLR’s, 8 matrix output XLR’s Left/Right/Centre mix output XLRs, Left/Right/Centre monitor output XLRs  and comprehensive internal and external talkback and Oscillator connections. There are also 8 analogue insert connections which allow outboard processing to be inserted into any input channel output bus.

Offline Editor - Virtual Si

To compliment the Soundcraft Si3, an offline editor (Virtual Si) is available. For more information on the Virtual Si, click here.

Knowledge Base / Useful Tips

For useful tips and tricks on using the console, check out our Si Series Knowledge Base

Harman Pro Group

As well as the wealth of experience in digital platform development that Studer and Soundcraft have with the Vista and Soundcraft Vi Series', the Soundcraft Si3 also draws expertise from other sister companies within Harman, with built-in effect processors from Lexiconand gates & compressors with the heritage of dbx and BSS Audio.


  Version Language Size Uploaded
Offline Editors
platform icon [PREVIOUS] Soundcraft Virtual Vi V6.0
updated: Feb 2017
    17.2 MB Feb 2017
Software Updaters
platform icon Si Series Software
version 4.2 Build003, updated: Nov 2016
4.2 Build003     4.36 MB Nov 2016
Si Software V4.2 Build003 README     3.3 KB Nov 2016
  Version Language Size Uploaded
file type icon Wallpaper
updated: Sep 2023
    394 KB Sep 2023
Owners Manuals
file type icon Si3 Owner's Manual-English
en updated: Sep 2023
  en  14.6 MB Sep 2023
file type icon Si Series V4.n User Guide Addendum
en updated: Sep 2023
  en  562 KB Sep 2023
file type icon Compact Stagebox User Guide
en updated: Sep 2023
  en  1.09 MB Sep 2023
file type icon [PREVIOUS] Virtual Si V5 User Guide
en updated: Sep 2023
  en  987 KB Sep 2023
Quickstart Guides
file type icon Si3 Quickstart Guide-English
en updated: Sep 2023
  en  3.33 MB Sep 2023
file type icon Si3 Quickstart Guide-Spanish
es updated: Sep 2023
  es  2.06 MB Sep 2023
file type icon Quickstart Guide-Portuguese
updated: Sep 2023
    1.58 MB Sep 2023
file type icon Si3 Brochure-English
en updated: Sep 2023
  en  243 Bytes Sep 2023
file type icon Si3 Brochure-Chinese
zh updated: Sep 2023
  zh  15.8 MB Sep 2023



HARMAN Professional Solutions:

Si3 (discontinued)