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  Home Products Soundcraft Si1+ TECHNICAL SPECIFICATIONS
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Analogue/Digital: Digital
Frame Sizes: 72
Stereo Channels: variable
Digital I/O: Yes
FX Processors: 4
Groups: 24
EQ Bands: 4
Aux Sends: 24
Returns: 4
Direct Outputs: Yes
Matrix Outputs: 8
Main Bus Out: LRC

Houses of Worship
Music Venues
Musicians & Bands
Recording & Mixing
Touring & Corporate

Soundcraft Si1+

Technical Specifications

Frequency Response
Mic input to Line output +0/-1dB, 20Hz 20kHz
Stereo input to master output +0.5/-0.5dB, 20Hz 20kHz
T.H.D. & Noise
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
Mic input
Sampling Frequency 48kHz
Convertor Resolution 24 bit
Mic Input to Bus output < 1ms @48kHz
DSP Resolution 40-bit floating point
Internal Clock
Accuracy < +/- 50ppm
Jitter < +/- 5ns
Input & Output Levels
Mic Inputs +26dBu max
Stereo Inputs / Returns +28dBu max
Bus Outputs +22dBu max
Nominal Operating Level 0dBu (-22dBFS)
Input & Output Impedances
Mic Inputs 6k8Ω
All other analogue Inputs >10kΩ
Line Ouptuts <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
Hi-Mid 22Hz-20kHz, +/-15dB, Q=0.3-6.0
Lo-Mid 22Hz-20kHz, +/-15dB, Q=0.3-6.0
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
Temperature/Humidity Range
Operating Temperature Range 0C 45C (32F 113F)
Relative Humidity 0% 90%, non-condensing Ta=40C (104F)
Storage Temperature Range -20C 60C (-4F 140F)

Soundcraft reserves the right to improve or otherwise alter any information supplied in this document or any other documentation supplied hereafter. E&OE 03/06

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