PRODUCT OVERVIEW

The?Soundcraft Si Expression 2 Digital Mixer?is a digital mixing console designed for live sound applications. The mixer features 24 microphone preamps, 4 line inputs, AES in, 4 internal stereo FX returns, 22 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.

The mixer features 14 aux/group mixes that can be used as 14 mono mixes, or 8 mono and 6 stereo mixes, or any combination between. The mixer also utilizes 4 matrix mixes that allow you to assign any combination of inputs to any combination of outputs in either mono or stereo mode. In addition to the auxiliary/group and matrix busses, the unit features four mix busses dedicated to the device’s internal Lexicon FX processing. Each bus mix includes a delay, compressor, a four-band equalizer, and a BSS graphic equalizer. Since the Lexicon FX processor is hardware based, using the effects does not influence the signal processing performance of the rest of the mixer.
For I/O expansion, the mixer will accept any of the Soundcraft Si series option cards including AES, AVIOM, CobraNet, Firewire/USB/ADAT, Dante CAT5, and optical MADI. The MADI card allows you to connect to multi-track recording systems, plug-ins such as WAVES, and Studer or Soundcraft stageboxes. Using a stagebox increases both the number of physical inputs, as well as the number of input processing channels. Every processing parameter utilizes a dedicated control so that you do not need to navigate through menu hierarchies to make adjustments. A row of global mode encoders above each channel gives you control over gain, high-pass filter parameters, and pan position.

Direct Output Gain Stabilization (D.O.G.S.)
When two consoles are sharing the same source, the D.O.G.S. system maintains the same gain structure of microphone in to direct out on both consoles. This is useful when utilizing the mixer to send stage mixes to musicians wearing in-ear monitoring systems. No matter how the levels might be changed on the mixer, the D.O.G.S system will ensure that the direct output level to the musicians remains constant
Lexicon FX Engine
The mixer features four hardware-based Lexicon FX engines, each on its own FX bus. This allows you to perform complex FX signal processing on any channel without running out of system resources. The Lexicon FX engine features over 20 preset stereo effects, accessible via the rotary encoders and touch screen

Features

24 mono mic inputs
4 line inputs
Colour touch screen interface
66 channels to mix possible
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
AES in and out
Freely assignable insert loops
Harman HiQnet integration
64×64 channel option card slot