The Mastermind LT is a compact controller equipped with high-performance MIDI functions similar to those of the higher-end Mastermind GT. Despite its compact size, the MIDI functionality is powerful enough to control a large-scale guitar system. It's also designed to work well with various amp simulators, including the Fractal Audio AXE-FX. The unit can be easily configured using the editor software provided free of charge by RJM. Preset management is also possible, allowing for flexible response to set list changes. You can also connect an expression pedal or external switch for real-time pedal control and expansion of IAs. A function is provided for switching amp channels. Seven switches with multicolor LEDs, user-configurable for color and function; 16 button pages configurable to perform various functions or control multiple devices; Large main LCD display shows preset number, preset name, and song name; Phantom power capability allows Mastermind LT to be operated with a single MIDI cable; Multiple Mastermind LTs can be connected for use in multiple locations; Expression pedal input for sending continuous control MIDI messages to effect devices; External switch input allows adding one or two buttons to the controller for tap tempo and other settings; Function switch using TRS jack for amp channel switching or pedal switching; USB port for direct connection to PC or Mac; Onboard edit menu allows basic settings for device, MIDI CC, PC, and note messages; Editor software for PC and Mac allows additional configuration, including full control of button assignments・Number of instant access buttons, preset buttons and bank size are all user definable - any button can be assigned to any function・768 presets, 16 pages of buttons and 16 connected devices・Preset buttons can send a program change to all 16 devices with a single tap・In addition to sending program changes to each device, preset buttons can also send up to 10 other MIDI ・・messages (any combination of CC, PC, Note or Sysex)・IA buttons can send up to 20 messages (any combination of CC, PC, Note or Sysex)・Accepts one expression pedal using a TRS jack, high or low impedance・External switch input: 1 TRS jack for a total of 2 switches. Momentary switches required・Function switch output: 1 TRS jack for a total of 2 switches. Electrically isolated・7-pin DIN connectors for MIDI input and output・USB A connector for connection to a USB thumb drive・USB B connector for connection to a PC or Mac. (Bus power supported)・Phantom power received over MIDI jacks・Dimensions: 29.2 x 12.7 x 7.0 cm