16 x 16 matrix mixer with an extensive array of audio management tools. 2 analogue mic/line inputs on XLR with 20V phantom power, 4 analogue line inputs on TRS jack, 4 line outputs on XLR, 2 line outputs on TRS jack, Digital audio expansion ports (8 channels in, 8 channels out). Allen & Heath preamps, 24bit converters and fixed DSP architecture.