Soundcraft Si Expression 1 16-Channel Digital Mixer

Drawing on more than a decade of experience in the field of digital audio mixing, the Soundcraft® Si Expression exploits some of the newest DSP, component technology and manufacturing techniques to deliver the most powerful cost effective digital console possible! Each console in the range is identical in its feature set so your only choice is how many faders and local mic amps you want. 

The Si Expression 1 features 16 recallable mic pre amps (24 on Si Expression 2 and 32 on Si Expression 3) plus 4 line inputs, 4 internal stereo FX returns, AES in, and a 64x64 expansion slot offering more than enough scope to use every one of the 66 input processing channels. Every input processing channel has dedicated processing for high pass filter, input delay, gate, compressor and four band EQ whilst keeping it under control is a comprehensive automation system augmented with four mute groups and FaderGlow™ to light the way so you are never lost.

Soundcraft Si Expression 1 Features

• 16 mono mic inputs
• 4 line inputs
• 66 inputs to mix
• 1 ViSi Connect™ option card slot for 64 x 64 input/output expansion
• Freely assignable faders and patching
• Pre/Post selection per input per bus
• AES in and out
• Global mode encoders
• Soundcraft FaderGlow™
• GEQ on every bus
• 20 sub-group / aux busses
• 4 FX busses
• 8 Matrix busses
• LR and C Mix busses
• 4 Stereo Lexicon Effects engines
• Delay on inputs and outputs
• 4 Mute Groups
• Freely assignable insert loops
• Harman HiQnet integration
• Colour touch screen interface

• Si Expression 1 digital console1

• Frequency Response
  • Mic Input to Line Output: +0/-1dB, 20Hz – 20kHz
  • Stereo Input to Master Output: +0.5/-0.5dB, 20Hz – 20kHz
• THD and Noise
  • Mic Input (Min Gain) to Bus Output: 0.006% @ 1kHz
  • Mic Input (Max Gain) to Bus Output: 0.008% @ 1kHz
  • Residual noise, Master Output, no inputs routed, mix fader @0dB: <-88dBu
  • Mic Input EIN (max gain): -126dBu (150Ω source)
  • Mix Noise, Masters at Unity: <-86dBu
  • 1 Input to Mix at Unity Gain: -84dBu
  • CMRR mic @ 1kHz (max gain): -80dBu
• Crosstalk (@1kHz)
  • Channel On Attenuation: <120dB
  • Channel Fader Attenuation: <120dB
  • Mic - Mic: -100dB @ 1kHz, -85dB @ 10kHz
  • Line - Line: -100dB @ 1kHz, -85dB @ 10kHz
• Input Gain
  • Mic Gain: -5dB – 58dB integrated pad design 1dB steps
  • Line Trim: -10dB - +16dB
• EQ
  • HI MID & LO MID: 22Hz – 20kHz, +/-15dB Q 6-0.3
  • Shelf (HF): 800Hz – 20kHz, +/-15dB
  • Shelf (LF): 20Hz – 500Hz, +/-15dB
  • HPF: 40Hz – 1kHz
  • GEQ: 31Hz – 16kHz 1/3 octave
• Delay (user adjustable)1 sample - 500ms
• Digital I/O
  • Converter Resolution: 24-bit
  • DSP Resolution: 40-bit floating point
• Latency
  • Analogue in to AES out: <0.6ms
  • AES in to Line Out: <0.8ms
  • AES in to AES Out: <0.5ms
  • Stagebox Mic In to Stagebox: <0.9ms
• Input & Output Levels
  • Mic Input: 2kΩ
  • Line Input: >10kΩ
  • AES Input: 110Ω
  • Outputs: 150Ω (balanced), 75Ω (unbalanced)
  • Word Clock Used as Output: 50Ω
  • Word Clock Used as Input: 4k7Ω
  • AES Output: 110Ω
• Lamp Output
  • 12v DC: 100mA max (per socket)
• Power
  • AC Input Voltage Range: 88-264VAC auto sensing
  • AC Frequency Range: 47-63Hz
• Dimensions (WxDxH)19" x 20.5" x 6.6"
• Weight26 pounds