API The Box II API The Box 2 8 Channel Recording Console Box 2 500 Series Summing Mixer Desk,provides all the features, functions, sound and imaging, and interactivity of an API large format console, but in a smaller compact design geared towards professional project studios, home studios, and production facilities of all kinds.Offering 8 input channels and 8 500-Series slots, LED metering, 16 summing channels, Talkback system, rear panel connections and Integrated power supply.