Digitech GSP1101 Guitar Effects Modelling System - 1U 19" rack, over 120 amp, cabinet, pre-amp and effects models including vintage stompboxes and pickup modelling. Stereo effects loop, 40 tone and 40 effect chain Llibraries plus 1600 exclusive DigiTech combinations. Balanced stereo XLR and 1/4" jack outputs, global EQ, chromatic tuner, audio streaming over USB, MIDI In/Thru, headphone out. Includes editor/librarian software.