Soundcraft Si Expression 3 32 Channel Live Digital ConsoleDrawing on more than a decade of experience in the field of digital audio mixing, the Soundcraft Si Expression 3 exploits some of the newest DSP, component technology and manufacturing techniques to deliver our most powerful cost effective digital console ever! It features 24 recallable mic pre amps plus 4 line inputs, 4 internal stereo FX returns, AES in, and a 64x64 expansion slot offering more than enough scope to use every one of the 66 input