The Discrete 4 offers four Class-A preamps that provide console-grade sound. All of them utilize combination XLR-1/4" connections, but two of them are specifically designed to switch between mic level, line level, and Hi-Z sources. Monitor outputs and two pairs of line outputs can be found on the back of the unit, as can thunderbolt and USB ports for connecting to computers.
S/PDIF and ADAT are both provided over optical I/O. The unit is expandable over ADAT, giving you up to eight extra channels. This is Antelope, so you'll find their top-notch 64-bit acoustically focused clocking on the unit, and you can sync the Discrete 4 over BNC connections, or distribute clocking to other units.
The Discrete 4 Synergy Core includes a compelling library of 36 real-time studio effects, meticulously modeled after real-world hardware. Latency is painlessly low thanks to FPGA's parallel computing capabilities, DSP processing, and fast Thunderbolt connectivity. The library can be expanded to include any effects you choose from the web store.