Mastermind GT/16 MIDI Foot Controller

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  • Mastermind GT/16 MIDI Foot Controller
  • Mastermind GT/16 MIDI Foot Controller
  • Mastermind GT/16 MIDI Foot Controller
Now: $1,529.00
Was: $1,699.00


The Mastermind GT is the result of years of research and development, using modern technology to create what we believe is the best MIDI foot controller ever made. It's popular with guitarists, DJs, keyboardists, producers and more. The Mastermind GT series is very popular with Kemper and Fractal Axe-Fx users, and we're also seeing quite a few users running it with Ableton, Logic and other DAW software. 

By adding a display over every button, we've made it possible to have a fully configurable MIDI controller. Any button can be assigned to any function, and colors and button text are fully configurable by the user. Buttons can send multiple MIDI messages of several types, and there can be up to 16 pages of buttons so you will always have access to all of the functions your rig has available.

Add in other features such as user upgradeable firmware, USB thumb drive support and built-in support for many popular MIDI devices, and you can see why there has been so much buzz about this product.


  • 16 buttons, with an LCD display over every button. Any button can be set to perform any function (preset, IA, bank up/down, tap tempo, etc.) and the LCD will indicate what the button does. No more board tape!
  • A large main LCD display shows the preset number, preset name and/or song name
  • Standard MIDI In and Out ports
  • Phantom power capability allows you to run the Mastermind GT with a single MIDI cable - no separate power supply needed
  • More than one Mastermind GT can be connected together and used in multiple locations on stage
  • Jacks to connect four expression pedals and four external switches allow for lots of control over connected effects processors and other MIDI devices
  • Two auxilliary 9VDC power outlets for tuner, wah pedal, etc
  • USB support for direct connection to a PC or Mac
  • USB thumb drive input allows you to save and restore settings to a thumb drive
  • Editor software for PC and Mac
  • Advanced on-board editing capability which makes this controller very easy to program, even without using the editor software
  • Built for the rigors of the road with high quality components throughout


  • Number of instant access buttons, preset buttons and bank size are all user definable - any button can be assigned to any function
  • 384 presets, 16 pages of buttons and 16 connected devices
  • Preset buttons can send a program change to all 16 devices with a single tap
  • IA buttons can send up to 10 messages (any combination of CC, PC or Note)
  • Expression pedal inputs: 4. Accepts linear or log pedals using TRS jacks, high or low impedance
  • External switches: 2 TRS jacks for a total of 4 switches. Momentary switches required
  • 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
  • Phantom power received over MIDI output jack
  • Dimensions:
  • Weight:
  • Power requirements: 12VDC @ 1.5A, center positive, 2.1mm ID / 5.5mm OD barrel connector

For more information on this product, please visit our main website.

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4 Reviews

  • 5
    Mastermind GT-16

    Posted by Luis Eduardo Rodriguez Gonzalez on May 15th 2019

    A complete foot controller with all the features that I and probably any guitarist need

  • 5
    Ferrari of MIDI Foot Controllers

    Posted by Christian Thomas on Mar 23rd 2019

    This device is one of the most solid, well designed pieces of MIDI equipment I’ve come across. The product is extremely high quality and the profiler software for programming it is also intelligently put together. Furthermore, the small staff at RJM was very kind and went well out of their way to help me complete this project. My only two gripes would have to be that the devices do not appear to include any kind of road-worthy protective case and their availability seem to be very limited. Nevertheless I will be purchasing more of these in the future.

  • 5
    matermind GT/16

    Posted by Walter Dehaan on Mar 11th 2019

    I'm using the mastermind GT 16 and hope to up grade to the GT 22 soon as it is available ,I'm using with the axe-fx 3 fractal audio guitar processer which works really well once u have the axe-fx 3 midi settings right ,once corrected that it worked like a charm no problems at all ,and ron at RJM MUSIC was a great help.

  • 5
    MMGT-16 Greatness

    Posted by Michael Key on Jun 8th 2018

    I'm still in the honeymoon phase, but this controller is fabulous. This will probably be the last controller I ever need. RJM customer service is just as awesome as their products.

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