Description

The Soundcraft Si Expression 1 Digital Mixer is a digital mixing console designed for live sound applications. The mixer features 16 microphone preamps, 4 line inputs, AES in, 4 internal stereo FX returns, 14 faders, a 64 x 64 expansion slot for additional routing possibilities, and 66 input processing channels.

Every input processing channel on the board can be routed through a dedicated high-pass filter, input delay, compressor, gate, and four-band equalizer. Each channel is also under the control of an automation system with four mute groups and illuminated faders to keep track of signal processing. For outputs, the mixer includes 16 balanced line outputs, a headphone monitor output, AES output, and the 64 x 64 expansion slot.

 

Features

  • 16 Microphone Pre-Amplifiers
  • 14 Multi-Color Illuminating Faders
  • 64 x 64 Channel Expansion Slot
  • 14 Auxiliary/Group Mixes
  • 4 Stereo Lexicon FX Engines
  • 66 Input Processing Channels
  • Direct Ouput Gain Stabilization
  • Copy and Paste Channel Strip
  • Global Mode Encoders
  • ViSi Remote Control over iPad

Specification

Mixer
Number of Analog Input Channels 16
Number of Mic Preamps 16
Faders 14

 

Signal Processing
Gain/Trim Range Mic:
-5 dB to 58 dB (in 1 dB Steps)
Line:
-10 dB to +16 dB
Gate Parameters Threshold: -60 to -6 dBFS
Depth: -60 to -3 dB
Attack: .1 ms to 200 ms
Release: 20 ms to 500 ms
Compressor Parameters Threshold: -52 to -6 dBFS
Ratio: 1:1 to 20:1
Attack: .1 to 200 ms
Release: 5 to 900 ms
Makeup Gain: 0 to 24 dB
Sidechain Filters Gate:
High-Pass: 22 Hz to 2.5 kHz
Low-Pass: 160 Hz to 20 kHz
EQ Parameters 1 x HF Shelf:
±15 dB at 800 Hz to 20 kHz
2 x MF Notch/Peak:
±15 dB at 22 Hz to 20 kHz, 6 to 0.3 Q
1 x LF Shelf:
±15 dB at 20 Hz to 500 Hz
Graphic EQ 28-Band 1/3 Octave, 31 Hz to 16 kHz
Filters High-Pass: 40 Hz to 1 kHz
Audio Delay Adjustable Up to 500 ms

 

Digital Audio
Sample Rates AD/DA Conversion:
Up to 200 kHz
Bit Depth AD/DA Conversion:
24-Bit
DSP 40-Bit Floating Point
Jitter ± 7 ns
Word Clock Input 48 kHz ±7 Hz
Latency < 0.8 ms (Mic Input to Line Output)
< 0.6 ms (Analog Input to AES Output)
< 0.8 ms (AES Input to Line Output)
< 0.5 ms (AES Input to AES Output)
< 0.9 ms (Stagebox Input to Stagebox Output)

 

Performance
dBFS Reference Level +21.5 dBu = 0 dBFS
Frequency Response Mic/Line Input:
20 Hz to 20 kHz ±1.5 dB
Max Input Level Mic Input:
+22 dBu
Line Input:
+22 dBu
Output Level Mix Output:
+21.5 dBu (Max)
Headphone Output Power 300 mW into 150 Ohms
I/O Impedance Mic Input:
3 Kilohms
Line Input:
10 Kilohms
AES3 Input:
110 Kilohms
Output:
150 Ohms (Balanced)
75 Ohms (Unbalanced)
Word Clock Output:
50 Ohms
Word Clock Input:
47 Kilohms
AES3 Output:
110 Ohms
Crosstalk Adjacent Channels:
< 120 dB
Adjacent Inputs:
-100 dB at 1 kHz
-85 dB at 10 kHz
CMRR -80 dBu
EIN -84 dBu at Unity Gain
-126 dBu (2901653041)
Noise Floor < -86 dBu
< -86 dBu (at Unity Gain)
THD < 0.01%

 

Connectivity
Analog Inputs 16 x XLR Balanced Mic/Line Input

 

Power
AC Input Power 88 to 264 VAC, 50 / 60 Hz
Power Consumption 130 W (Maximum)
Lamp Power 12 VDC at 100 mA

 

Physical
Operating Temperature 41 to 113°F / 5 to 45°C
Operating Humidity 0 to 90%
Storage Temperature -4 to 140°F / -20 to 60°C
Dimensions 6.7 x 19 x 20.5″ / 169 x 483 x 520 mm
Weight 24.2 lb / 11 kg

 

Packaging Info
Package Weight 36.65 lb
Box Dimensions (LxWxH) 28 x 22 x 10″

 

 

Additional information
Brand

Soundcraft

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