Si1 (discontinued)

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The new Si1 has a very compact footprint of just 1200mm width, meaning it fits nicely into space-restricted areas such as theatres, small venues, and Houses of Worship, and of course comes at an extremely competitive price.

As standard the Si1 has 32 mic inputs mapped on 16 faders, and with four dedicated Stereo Line channels, four dedicated FX Returns from the four stereo Lexicon FX processors offering at least 48 inputs to mix from the onboard I/O. Analogue expansion modules are available offering either an additional 16 mic inputs or 8 mic inputs and 8 line outputs. The two 64x64 channel expander slots allow the installation of further I/O bringing the available inputs to mix up to 72.

Eight balanced insert sends and returns are provided, along with the same bus structure as the Si2 and Si3 of 24 Group/Aux busses, 8 matrix busses and a full complement of monitor talkback and main bus outputs. These buses may be freely assigned to any of the 16 Bus Out XLR connectors which exist in addition to the dedicated MIX and monitoring output XLRs. Every bus has a dedicated 30-band BSS Audio graphic EQ, permanently patched in with no additional drain on DSP resource.

Such is the power and topology of the Si Series that the separate DSP and control engines allow you to make any system or function changes live with no interruption in the audio.

Like the Si3 and Si2, the Si1 uses a combination of rotary encoders and OLED screens on every channel so the engineer mixes at source, without recourse to a central screen, an interface welcomed by many engineers since the Si3’s launch last year. Using the center section and channel encoders, it is possible to simultaneously monitor and control input EQ, input dynamics and output EQ. Four assignable on-board lexicon effect engines supplement 4 stereo inputs to provide a really powerful mix package in a width of 1.2m. Soundcraft’s offline editor program, Virtual Si, can also be used to setup and manage complete shows offline, for later download to an Si1 console through a USB memory key.

With a wealth of input and output connections and power supply on board, the Si1 can simply drop in where an existing analogue console sat, utilising existing copper cable snakes and splitter systems.

One Box

  • 32 inputs, 4 stereo inputs, 24 aux busses
  • 8 matrix, 12 VCAs, 8 mute groups
  • 4-band fully parametric EQ with high and low cut filters
  • On-board dynamics
  • Four independent Lexicon processors
  • 24 analogue outputs
  • Meters for every aux bus


On the rear of this highly-featured console are a host of I/O connectors to cover almost any need. Thirty-two XLR’s for the mic/line inputs, 4 stereo line level inputs, 16 bus output XLR’s, dedicated XLRs for Left/Right/Centre mix output, Left/Right/Centre monitor output, 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 or output bus.

Offline Editor - Virtual Si

To compliment the Soundcraft Si1, 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 Si1 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
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
Owners Manuals
file type icon Si1 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
Quickstart Guides
file type icon Si1 Quickstart Guide-English
en updated: Sep 2023
  en  3.33 MB Sep 2023
file type icon Si1 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 Compact Stagebox User Guide
en updated: Sep 2023
  en  1.09 MB Sep 2023


HARMAN Professional Solutions:

Si1 (discontinued)