The Surface is simply a controller for the MixRack. It also has an audio rack built into it to conveniently provide local inputs and outputs at the mix position. The iLive-R72 provides an ultra-compact rack mountable solution with fixed format I/O. It features a backlit TouchScreen, name and colour virtual ‘write-on’ strip, banks of motorised faders with independent layers, SoftKeys, built-in headphones, local monitor and talkback.