The Soundcraft 5035677 Si Expression 2 is a compact digital mixing console that brings professional digital mixing capabilities to a wider range of users, including mobile engineers, fixed installations, and mid-sized performance spaces. It provides 20 fully processed input channels in a streamlined, single-unit chassis, maintaining the core audio quality and workflow of the larger Expression series. The console is built around the same high-performance SuperAnalogue™ microphone preamplifiers found in its larger siblings, delivering transparent, low-noise gain structure that captures the full detail and dynamics of any source. This focus on foundational audio quality ensures that every mix starts with a superior signal.

Operationally, the Si Expression 2 offers a user-friendly interface characterized by its dedicated channel strip controls and a central color touchscreen. Each input channel features a full suite of digital processing tools, including a 4-band parametric EQ, a compressor, and a noise gate, all accessible via clearly labeled buttons and rotary encoders. The integrated Lexicon effects provide professional-grade reverb, delay, and modulation to enhance vocals and instruments. Flexible routing allows users to configure auxiliary sends for monitors and assign outputs to multiple mix buses, making it capable of handling both front-of-house and monitor mixing duties from a single surface.

Connectivity and expansion are key strengths, with built-in digital snake capability via an optional stage box, allowing the mixer to be placed at the front of house while all microphone connections remain on stage. A comprehensive 18x18 USB audio interface is integrated for direct multitrack recording and playback. With its robust construction, intuitive control scheme, and scalable design, the Si Expression 2 stands as a versatile and powerful solution for applications that require the advantages of digital mixing—recallable scenes, sophisticated processing, and networked audio—without the physical footprint or complexity of a much larger console.