Apogee SYM2-SG - Symphony MkII SoundGrid Audio Interface (Chassis Only)Ships with both I O modules empty, for more customized configurations. Symphony I O Mk II is a multi channel audio interface featuring Apogee's flagship AD DA conversion, modular I O (up to 32 inputs and outputs), intuitive touchscreen display and optional world class microphone preamps. Designed to deliver professional sound quality for audio recording, mixing and mastering, Symphony I O Mk II is the ultimate music production centerpiece for any