The DX168, when used in conjunction with the Surface and MixRack, combines to form a powerful and expandable system. Surface gives you direct hands-on control over your mix. The MixRack is the brain of the system, containing the XCVI core and supporting a large number of surfaces, applications, software, TCP/IP control, and IP remotes, all of which provide different means of controlling the mixer. A 128-channel I/O port supports Dante, Waves SG, ACE, and MADI, plus full compatibility with ME personal mixing systems. At Sweetwater, we've found these systems flexible enough to handle any mixing challenge we throw at them..PZA MORE SPECS