TC Electronic M350 dual engine rack processor - 15x stereo reverbs, 256x multi-effect/reverb presets + 99 user presets, total of 355 presets, full DAW integration through VST/AU compatible editor, auto-sensing 24bit S/PDIF digital I/O (coaxial), 44.1/48kHz, 1/4" jacks in/out, MIDI in/out.