The Scarlett 18i20 audio interface caters for a total of 18 inputs and 20 outputs, and provides the means to connect microphones, musical instruments, line level audio signals and digital audio signals in both ADAT and S/PDIF formats to a computer running compatible versions of macOS or Windows via one of the computer’s USB ports. In the 3rd Generation, the optical ADAT ports also support “Dual ADAT” operation (S/MUX II), which provide 8 channels of /96 kHz as well /48 kHz.
The outputs can be connected to amplifiers and speakers, powered monitors, headphones, an audio mixer or any other analogue or digital audio equipment you wish to use. Although all inputs and outputs on the Scarlett 18i20 are routed directly to and from your DAW for recording and playback, you can configure the routing within your DAW