
Copyright © 2012-2018 RJM Music Technology, Inc. All Rights Reserved
RJM and the RJM logo are registered trademarks of RJM Music Technology, Inc. RG-16, Amp Gizmo, Effect
Gizmo, Rack Gizmo, Switch Gizmo, Mastermind and Mastermind GT are trademarks of RJM Music Technology,
Inc. All other trademarks are the property of their respective holders.

Table of Contents ...............................................................................................................................................................................................v
Introduction ......................................................................................................................................................................................................... 1
Front Panel ........................................................................................................................................................................................................... 2
Rear Panel ............................................................................................................................................................................................................ 3
Basic Operation .................................................................................................................................................................................................. 5
Initial Setup - Adding a Device .................................................................................................................................................................... 8
Setup with a Fractal Audio Axe-Fx I or II................................................................................................................................................ 13
Setup with a Fractal Audio Axe-Fx III ...................................................................................................................................................... 16
Setup with a Kemper Profiling Amp ........................................................................................................................................................ 20

Setup with RJM Music Products ................................................................................................................................................................ 23
Editing Buttons ................................................................................................................................................................................................. 24
Editing Presets .................................................................................................................................................................................................. 30
Song and Setlist Mode .................................................................................................................................................................................. 34
Expression Pedals ............................................................................................................................................................................................ 38
External Switches ............................................................................................................................................................................................. 42
Remote Mode ................................................................................................................................................................................................... 43
External MIDI Control .................................................................................................................................................................................... 44
Other Special Features .................................................................................................................................................................................. 46

Loading and Saving Settings to a USB Flash Drive ............................................................................................................................ 48
Connecting to a Computer ......................................................................................................................................................................... 50
Upgrading Firmware ...................................................................................................................................................................................... 51
Setup Mode Reference ................................................................................................................................................................................. 52
Specifications .................................................................................................................................................................................................... 71
Mastermind GT MIDI Implementation Chart ....................................................................................................................................... 73

000: Preset 000
Hold both to enter setup
Loop 5 Loop 6 Loop 7 Bank

IMPORTANT NOTES ON PHANTOM POWER:

000: Clean
Hold both for setup
000: Clean
Hold both for setup
Loop 5 Loop 6 Loop 7 Bank

000: Clean
Hold both for setup
Loop 5 Loop 6 Loop 7 Bank

CC Values
Get Preset Names with Scenes
Get Preset Names with Scenes and Create Songs
•
•
•
•
•
•

Important Notes on Phantom Power!
Chaining Multiple Devices

Free Bird
Bassman Clean
Hold both to enter setup
Loop 5 Loop 6 Loop 7 Bank

Load Settings
mmgt1.rjs
daw-config.rjs
old-settings.rjs
Cancel Select
System Menu
Select an option
Done

Button Select
Viewing button page 1
Next Page Done
Loop 5 Loop 6 Loop 7 Bank
Edit Button Name
Shred Fest
Done

CC Toggle or CC Momentary
PC (Program Change)
Note

MIDI Implementation Chart v 2.0 (Page 1 of 3)
Manufacturer: RJM Music Technology, Inc. Model: Mastermind GT Version: 3 Date:
Channel 1 is set by default
Bank Select Response? (Yes/No)
If yes, list banks utilized in remarks column
Sends any bank number
Uses bank MSB and LSB, banks 0-2
Mode 1: Omni-On, Poly (Yes/No)
Mode 2: Omni-On, Mono (Yes/No)
Mode 3: Omni-Off, Poly (Yes/No)
Mode 4: Omni-Off, Mono (Yes/No)
Multi Mode (Yes/No)
Note-On Velocity (Yes/No)
Note-Off Velocity (Yes/No)
Channel Aftertouch (Yes/No)
Poly (Key) Aftertouch (Yes/No)
Universal System
Exclusive:
Sample Dump Standard (Yes/No)
Device Inquiry (Yes/No)
File Dump (Yes/No)
MIDI Tuning (Yes/No)
Master Volume (Yes/No)
Master Balance (Yes/No)
Notation Information (Yes/No)
Turn GM1 System On (Yes/No)
Turn GM2 System On (Yes/No)
Turn GM System Off (Yes/No)
DLS-1 (Yes/No)
File Reference (Yes/No)
Controller Destination (Yes/No)
Key-based Instrument Ctrl (Yes/No)
Master Fine/Coarse Tune (Yes/No)
Other Universal System Exclusive
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Manufacturer or Non-Commercial System Exclusive
RJM Music Technology, Inc.
Manuf. ID: 00 01 5B
RPN 00 (Pitch Bend Sensitivity) (Yes/No)
RPN 01 (Channel Fine Tune) (Yes/No)
RPN 02 (Channel Coarse Tune) (Yes/No)
RPN 03 (Tuning Program Select) (Yes/No)
RPN 04 (Tuning Bank Select) (Yes/No)
RPN 05 (Modulation Depth Range) (Yes/No)
2. MIDI Timing and Synchronization
Song Position Pointer (Yes/No)
Start (Yes/No)
Continue (Yes/No)
Stop (Yes/No)
MIDI Machine Control (Yes/No)
MIDI Show Control (Yes/No)
If yes, MSC Level supported
3. Extensions Compatibility
General MIDI compatible? (Level(s)/No)
Is GM default power-up mode? (Level/No)
DLS compatible? (Levels(s)/No)
(DLS File Type(s)/No)
Standard MIDI Files (Type(s)/No)
SP-MIDI compatible? (Yes/No)

MIDI Implementation Chart v 2.0 (Page 2 of 3)
Manufacturer: Model: Version: Date:
General Purpose Controller 2 (MSB)
General Purpose Controller 3 (MSB)

MIDI Implementation Chart v 2.0 (Page 3 of 3)
Manufacturer: RJM Music Technology, Inc. Model: MasterMind GT Version: 1 Date:
Sound Controller 1 (default: Sound Variation)
Sound Controller 2 (default: Timbre / Harmonic Quality)
Sound Controller 3 (default: Release Time)
Sound Controller 4 (default: Attack Time)
Sound Controller 5 (default: Brightness)
Sound Controller 6 (GM2 default: Decay Time)
Sound Controller 7 (GM2 default: Vibrato Rate)
Sound Controller 8 (GM2 default: Vibrato Depth)
Sound Controller 9 (GM2 default: Vibrato Delay)
Sound Controller 10 (GM2 default: Undefined)
General Purpose Controller 5
General Purpose Controller 6
General Purpose Controller 7
General Purpose Controller 8
Effects 1 Depth (default: Reverb Send)
Effects 2 Depth (default: Tremolo Depth)
Effects 3 Depth (default: Chorus Send)
Effects 4 Depth (default: Celeste [Detune] Depth)
Effects 5 Depth (default: Phaser Depth)
Non-Registered Parameter Number (LSB)
Non-Registered Parameter Number(MSB)
Registered Parameter Number (LSB)
Registered Parameter Number(MSB)