Soundcraft / Si Expression 2 Digital Mixer

The Si Expression 2 is a digital mixer from Soundcraft. It features an ACS area for displaying and adjusting channel/bus settings such as gain, EQ, and dynamics. It also features a fader glow system, where the color of the LEDs inside the faders changes depending on the assigned function, allowing for precise operation. The inputs are equipped with four high-quality effect processors.

■ Number of Channel Faders: 22
■ Number of Processable Channels*: 66
■ Input/Output Terminals
・Mic/Line Inputs (XLR): 24
・Stereo Line Inputs (Phone): 2
・Digital Input (AES/EBU, XLR): 1 (2ch)
・Line Outputs (XLR): 16
・Digital Output (AES/EBU, XLR): 1 (2ch)
・Word Clock (BNC, 75Ω): 1
・MIDI IN/OUT: 1 each
・HiQnet: 1
■ Busses
・L/R/MONO Buses: 1 each
・AUX Buses: 8 mono + 6 mono or 6 stereo switchable
・Matrix Buses: 4 mono or 4 stereo switchable
・FX Buses: 4
■ AD-DA Conversion: 24-bit/48kHz
■ Internal Processing: 40-bit floating-point calculation
■Latency: 0.8ms or less (mic/line input to line output)
■Power supply: AC 100V, 50/60Hz
■Power consumption: 130W
■Dimensions (excluding protrusions): 716W x 153H x 507D mm
■Weight: 16kg

*This is the total value for mono input channels + stereo line inputs + FX returns when using a stage box to expand the mono input channels to 54, counting 2 stereo line inputs as 4 channels and 4 FX returns (4 stereo) as 8 channels.