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
[PREVIOUS] Soundcraft Virtual Vi V6.0     17.2 MB Feb 14, 2017
Software Updaters
Si Series Software 4.2 Build003    4.36 MB Nov 21, 2016
Si Software V4.2 Build003 README     3.3 KB Nov 21, 2016
  Version Language Size Uploaded
Wallpaper     394 KB Nov 07, 2016
Studer D21m IO System Components   en  6.58 MB Jun 15, 2020
Owners Manuals
Si3 Owner's Manual-English   en  8.89 MB Jun 15, 2020
Si Series V4.n User Guide Addendum   en  562 KB Nov 07, 2016
Compact Stagebox User Guide   en  1.09 MB Nov 07, 2016
[PREVIOUS] Virtual Si V5 User Guide   en  987 KB Nov 07, 2016
Quickstart Guides
Si3 Quickstart Guide-English   en  3.06 MB Jun 15, 2020
Si3 Quickstart Guide-Spanish   es  2.06 MB Nov 07, 2016
Quickstart Guide-Portuguese     1.58 MB Nov 07, 2016
Si3 Brochure-English   en  243 Bytes Nov 07, 2016
Si3 Brochure-Chinese   zh  15.8 MB Nov 07, 2016