Soundcraft Si Expression 2 - 24-Channel Digital Mixing Console with 4 Line Inputs and 66 Input Processing Channels in Dark Blue Finish

The Soundcraft Si Expression 2 is a powerful 24-channel digital mixing console, designed to deliver exceptional audio quality and ease of use for live sound, studio recording, and broadcast environments. With 24 recallable mic preamps and 4 additional line inputs, this console provides a total of 66 input processing channels, making it a versatile solution for a wide range of audio applications. The Si Expression 2 is equipped with four stereo internal FX returns, AES input, and a 64x64 expansion slot that supports various digital formats, allowing for seamless integration into larger audio systems.

Each input processing channel on the Si Expression 2 features comprehensive signal processing, including a high pass filter, input delay, gate, compressor, and 4-band British EQ, ensuring precise control over your audio. The console is equipped with Soundcraft's FaderGlow technology, which provides color-coded visual feedback, making it easy to see the function of each fader at a glance. Additionally, the One Touch Easy Mixing (tOTEM) keys allow for quick and efficient mixing by simply selecting a bus and adjusting the corresponding faders. This intuitive interface, combined with a color touchscreen, ensures fast operation for professionals and newcomers alike.

The Si Expression 2 boasts 14 configurable aux/group mixes, which can be set up as 14 mono mixes, 8 mono plus 6 stereo mixes, or any combination in between. These are complemented by 4 matrix mixes and 4 Lexicon FX buses, providing flexible routing and mixing options. Each bus mix includes its own compressor, 4-band EQ, BSS graphic EQ, and delay processing, ensuring full dynamics control at all times. Output connectivity is equally comprehensive, with 16 balanced line outputs, a headphone monitor out, AES out, and the 64x64 expansion slot for further digital expansion with formats like MADI, Dante, and CobraNet.

The Si Expression 2's four stereo Lexicon FX processors are based on the renowned MX400, offering 29 effect presets per engine, including reverbs, delays, modulations, and pitch effects. These hardware-based FX engines do not affect the processing power of the console, ensuring that all EQs, dynamics, and filters remain available, regardless of FX usage. Tap tempo control and up to 12 adjustable parameters for each preset provide deep customization of effects, while dedicated tap tempo switches make timing adjustments easy in live situations.

The console also offers flexible I/O options, allowing users to integrate additional digital audio systems using the ViSi Connect option cards, including MADI USB, Dante, and AVIOM. The Si Expression 2 can interface with Soundcraft or Studer stageboxes, expanding the I/O capabilities and allowing the mixing of more channels simultaneously. The integrated USB port allows for saving and loading shows and snapshots, providing flexibility in live and studio environments.

Built to last, the Si Expression 2 is housed in a durable metal chassis with an internal power supply. Its lightweight and compact design makes it ideal for mobile setups, while its extensive feature set ensures it can handle demanding professional audio environments. Whether you're mixing for live sound, studio sessions, or broadcast applications, the Si Expression 2 provides the power, flexibility, and legendary Soundcraft audio quality to meet your needs.

Features

• 24 recallable mic preamps and 4 line inputs, with 66 input processing channels
• Comprehensive signal processing on each channel, including high pass filter, gate, compressor, and 4-band EQ
• FaderGlow technology for easy identification of fader functions
• One Touch Easy Mixing (tOTEM) keys for quick and efficient mixing
• 14 configurable aux/group mixes and 4 matrix mixes with full dynamics and EQ processing
• 4 Lexicon FX engines with 29 presets per engine and tap tempo control
• 16 balanced line outputs, AES in/out, and headphone monitor out
• 64x64 expansion slot for digital audio integration via MADI, Dante, and other formats
• Supports Soundcraft and Studer stageboxes for expanded I/O capabilities
• Color touchscreen for patching, routing, and setup control
• USB port for saving/loading shows and snapshots
• Rugged metal chassis with an integrated power supply
• Frequency response: +0/-1dB from 20Hz to 20kHz
• Total harmonic distortion (THD) as low as 0.006% at 1kHz for pristine sound quality
• Dimensions: 28.2 x 20.5 x 6.6 inches, weight: 34 lbs

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. 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 E.I.N. (maximum 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 delay: 1 sample - 500ms
• Digital I/O
  • Converter resolution: 24-bit
  • DSP resolution: 40-bit floating point
• Latency
  • Mic In to Line Out: <0.8 ms
  • Analogue in to AES out: <0.6 ms
  • AES in to Line Out: <0.8 ms
  • AES in to AES out: <0.5 ms
  • Stagebox Mic In to Stagebox: <0.9 ms
• Input and Output Levels
  • Mic Input: +22dBu max
  • Line Input: +22dBu max
  • Mix Output: +21.5dBu max
  • Headphones (@150Ω): 300mW (recommended impedance 32 to 200Ω)
• Input and Output Impedances
  • 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
  • Consumption (typical): <130w Si Expression 3
  • AC Input voltage range: 88-264VAC auto sensing
  • AC Frequency range: 47-63Hz
• Operating Conditions
  • Operating Temperature Range: 5°C to 45°C
  • Humidity: 0%-90%, non condensing Ta=40°C (104°F)
  • Storage Temperature Range: -20°C to 60°C (-4°F to 140°F)
• Weights and Dimensions
  • Dimensions: 28.2 x 20.5 x 6.6 inches
  • Weight: 34 lbs