USB AUDIO INTERFACE The completely redesigned 828 connects to a Mac, PC or iOS device via USB3 with extremely low latency, with high-performance drivers to deliver 60 channels of audio I/O, superb analog performance powered by renowned ESS Sabre32™ DAC technology, 24-channel mixing and built-in effects processor, including reverb, 4-band EQ and compression. Two 'combo' inputs microphone/guitar preamps provide transparent preamps with high-frequency guitar input for re-amping, individual gain/pad/phantom power, and dedicated send and return channels for external gear. Advanced features include optical expansion mode, MIDI in/out/thru, word clock input/output/transmission, and Wi-Fi control from your phone or tablet.