G Lab GSC-4 System Controller, Midi controller, LCD TFT display, 1000 presets (100 banks with 10 presets each), expression pedal input, 6x loop for effect switching, 6x relay for amp switching (3 isolated stereo outs), 6x 9V DC output for powering stompboxes (two sections 2x500mA), switchable high impedance input buffer (identical with a tube amp, characteristics) at any preset, tuner out, loop split, phantom power mode for powering the GSC-4 thru midi out connector, midi out and midi in connectors for controlling 10 midi devices independently on different midi channel, adjusting 20 different Midi Control Change numbers for each midi device (10 devices), 12x footswitch (10x multifunction + 2x bank(preset) UP/DOWN), footswitch modyficator function allows to set the footswitch as: ON/OFF effect or switch amp channel or call the preset on the particular MIDI device, input for connecting a Wah-Pad WP and Whammy-Pad WP-2, USB connectors, dimensions (h x w x d): 6,5 x 50 x 14 cm, weight: ca. 1,9 kg