Si2+ (discontinued)

Rotary encoders and OLED screens on every channel

Larger Images
The Soundcraft Si2+ is the big brother to Si1+ and will appeal to those wanting a compact and highly-featured digital console at a competitive price. It expands on the original Si2 through the addition of 16 more mic inputs, word clock out as standard and the option to swap the 16 mic inputs for an 8 mic input + 8 line output module if required.

The Si2+ comes in a larger footprint than its smaller brother and has 64 mic inputs mapped on 24 faders and four banks giving simple access to all channels whilst never losing sight of the stereo and FX returns. Like the Si1+ & Si3+ there are four dedicated Stereo Line channels, four dedicated FX Returns from the four stereo Lexicon FX processors, 8 balanced insert sends and 8 balanced insert returns. Si2+ is completed with 24 Group/Aux busses available at all times, 8 matrix busses plus a full complement of monitor talkback and main bus outputs. The four 64x64 channel expander slots allow the installation of further I/O sources including the connection of Soundcraft and Studer stageboxes. A direct out from every mono channel offers a simple way to record every channel whether requiring this for later mix-down and production work or to use as a virtual sound-check at the next gig!

Like the Si3+ and Si1+, the Si2+ 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. Four assignable on-board Lexicon effect engines supplement 4 stereo inputs to provide a really powerful mix package. Soundcraft’s offline editor program, Virtual Si, can be used to setup and manage complete shows offline, for later download to the console through a USB memory key.

This console is perfectly suited for installations where space restricts placement of a ‘full size’ console such as Theatres, Houses of Worship and smaller Tour Sound systems.

With all input and output connections and power supply on board, the Si2+ can simply drop in where an existing analogue console sat utilising existing copper cable snakes and splitter systems.



One Box

  • 64 mic inputs, 4 stereo line inputs, 24 aux buses
  • 8 matrix buses, 12 VCAs, 8 mute groups
  • 4-band fully parametric EQ with high and low cut filters
  • On-board dynamics
  • Four independent Lexicon processors with dedicated returns
  • 32 XLR outputs and LED 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, 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 managing your show files offline.




Frequency Response - Mic input to Line output +0/-1dB, 20Hz – 20kHz
Frequency Response - Stereo input to master output +0.5/-0.5dB, 20Hz – 20kHz
THD+Noise 10Hz-22kHz
Mic In (min gain) to Bus output 0.006% @ 1kHz
Mic In (max gain) to Bus output 0.008% @ 1kHz
Stereo input to master output 0.005% @ 1kHz
Mic Input E.I.N <-126dBu (150Ω source); 22Hz-22kHz bandwidth, unweighted
Residual Noise <-88dBu Master output; no inputs routed, Mix fader @0dB
CMRR 80dB @ 1kHz
Sampling Frequency 48kHz
Convertor Resolution 24 bit
Latency < 1ms @48kHz
DSP Resolution 40-bit floating point
Internal Clock Accuracy < +/- 50ppm
Internal Clock Jitter < +/- 5ns
Input & Output Levels - Mic Inputs +26dBu max
Input & Output Levels - Stereo Input +28dBu max
Input & Output Levels - Bus Outputs +22dBu max
Input & Output Levels - Nominal Operating Level 0dBu (-22dBFS)
Input & Output Impedances - Mic Inputs 6k8Ω
Input & Output Impedances - All other analogue Inputs >10kΩ
Input & Output Impedances - Line Input <75Ω
Oscillator 20Hz to 20kHz Sine/Pink Noise, variable level
Channel HP filter 22Hz-1kHz, 18dB per octave
Channel LP filter 500Hz-20kHz, 18dB per octave
EQ (Inputs and Bus Outputs) - HF 22Hz-20kHz, +/-15dB, Q= 0.3-6.0 or Shelving
EQ (Inputs and Bus Outputs) - Hi-Mid 22Hz-20kHz, +/-15dB, Q=0.3-6.0
EQ (Inputs and Bus Outputs) - Lo-Mid 22Hz-20kHz, +/-15dB, Q=0.3-6.0
EQ (Inputs and Bus Outputs) - LF 22Hz-20kHz, +/-15dB, Q= 0.3-6.0 or Shelving
Metering Internal 14-segment LED bargraphs for all Outputs. 12-section plus 9-section gain reduction OLED meters for all Inputs.
Mains Voltage Operating Range 90-264V, 47-63Hz, autoranging
Mains Power Consumption 400W
Operating Temperature 0°C – 45°C (32°F – 113°F)
Relative Humidity 0% – 90%, non-condensing Ta=40°C (104°F)
Storage Temperature -20°C – 60°C (-4°F – 140°F)
Height (Console Only) 340mm (13.4")
Height (with standard shipping carton) 500mm (19.7")
Height (with factory flightcase) 530mm (20.9")
Width (Console Only) 1415mm (55.7")
Width (with standard shipping carton) 1560mm (61.4")
Width (with factory flightcase) 1520mm (59.9")
Depth (Console Only) 817mm (32.2")
Depth (with standard shipping carton) 1010mm (39.8")
Depth (with factory flightcase) 1250mm (49.2")
Weight (Console Only) 48kg (106lb)
Weight (with standard shipping carton) 87kg (191lb)
Weight (with factory flightcase) 158kg (348lb)