Soundcraft Si Expression 1 - Professional Digital Console

Soundcraft Si Expression 1 - 16-channel professional digital console

The Soundcraft Si Expression 1 is a compact and versatile digital mixing console designed for live events, touring, and fixed environments demanding high audio quality. It features 16 recallable microphone preamps with +48V phantom power, four analog line inputs, four internal stereo effects returns, and AES3 connectivity. Its EMMA™ DSP engine provides dedicated processing on each of the 66 possible channels, including a high-pass filter, delay, gate, compressor, and four-band parametric EQ. The interface includes 14 faders with FaderGlow™ LED rings for function identification, a high-resolution color touchscreen, and automation with four mute groups and programmable snapshots.

Main features

• 16 recallable microphone preamps with +48 V phantom power.
• 4 analog line inputs and 4 stereo internal effects returns.
• AES3 digital input and output connectivity.
• 14 faders with FaderGlow™ illumination for quick layer identification.
• Color touchscreen for routing, EQ, and advanced control.
• ViSi Connect™ 64×64 expansion slot for Dante™, MADI, BLU Link, Aviom®, CobraNet®, etc. cards.
• 66 processing channels with 4-band EQ, compressor, gate and delay per channel.
• 14 configurable auxiliary buses/subgroups (mono or stereo).
• 4 matrix buses and stereo buses dedicated to Lexicon™ effects processors.
• 2 main mix buses (L/R) and mono bus (C) with graphic EQ and delay.
• Automation system with 4 mute groups and scene storage.

User benefits

• Compact and lightweight: ideal for touring and mobile use, it takes up only 19″ of rack space.
• Streamlined workflow: Touchscreen and FaderGlow faders make quick adjustments on-the-fly.
• Professional scalability: expansion slot and numerous audio network protocols.
• Exceptional sound quality: EMMA™ DSP and high-fidelity preamps ensure transparency.
• Advanced automation: snapshots and mute groups prevent errors and speed up scene changes.
• Full integration: AES3, USB and HiQnet for remote control and connectivity with other Harman devices.

Use cases

• Small and medium-sized concerts and festivals.
• Theaters, auditoriums and cultural centers.
• Churches and worship halls with multiple mixing needs.
• Corporate events and conference rooms.
• Fixed installations in broadcast studios and mobile recording studios.

Frequently Asked Questions

• How many mixing channels does it have? Up to 66 processing channels (16 mic + 4 line + 4 FX + 64x64 expansion).
• What type of faders does it have? 14 faders with FaderGlow™ LED rings to indicate layer and function.
• How do I expand my I/O? Using a ViSi Connect™ 64x64 slot compatible with Dante™, MADI, BLU Link, Aviom®, CobraNet™, and other cards.
• What built-in effects does it have? 4 dedicated buses for Lexicon™ reverb and delay processes.
• Does it have automation? Yes, it includes four mute groups, scene snapshots, and global layer control.

Description for projects

Soundcraft Si Expression 1 digital mixing console with 16 recallable mic preamps, 4 line inputs, 4 internal FX returns, AES3 I/O, 14 FaderGlow™ faders, color touchscreen, EMMA™ DSP engine with 66 processing channels, 14 aux buses, 4 matrix buses, 4 Lexicon™ FX buses, ViSi Connect™ 64×64 slot, 16 balanced line outputs and headphone output.