Mastermind GT 2.0 Firmware now available

We recently posted the 2.0 release of the Mastermind GT firmware on our website. This is by far the biggest expansion of the Mastermind GT’s capabilities since its release. with many new features, including:

– Expansion to 640 presets – on all GT hardware, no hardware upgrade required!
– Expansion to 20 actions per button
– Hold a button for a 2nd function
– IA Cycle buttons (pressing a button can cycle through up to 4 states)
– The ability to have a different button page for each preset
– Preset actions allow you to have a preset send messages when it’s selected – no need to use an IA button to do this anymore if you don’t want to. Each preset can have 10 actions.
– Sysex messages (and the ability to send any user-specified MIDI message)
– IA Link allows you set up IA buttons so that turning one button on will turn the others on
– The ability to adjust the button repeat rate
– External switches are now stored like expression pedals – there are global settings, and each preset can override them. They are no longer tied to specific button pages
– Axe-Fx II XL support
– Major changes to Kemper support – “Auto Names” mode allows you to display the performance and performance slot names in real time without doing a separate “Get Preset Names” step. Also added IA buttons for delay w/tails and reverb w/tails.
– Preset Number button type allows you to select a preset by typing in a number
– Better synchronization between GTs in remote mode
– Various bug fixes

The editor has the changes required to support the above features, and improvements to the UI that hopefully make it easier to use. It also has a new feature: “Send changes to device”. When in an editing session, it will only send the settings that you’ve changed since the last time you sent or received the settings to/from the device. The first time you transfer in an editing session, it will send everything, but subsequent sends will be much quicker.

Please remember that we listen to our users’ requests! Many of the features we added in 2.0 were requested by our customers. If you have any comments or suggestions for future improvements, please let us know!


Rig of the Day: Rig with Mastermind GT 10 from Nice Rack Canada

RJM Music’s Rig of the Day: Nice Racks with a Mastermind GT 10, Y-Not and Mini Effect Gizmo
















Matrix double pedalboard system with almost infinite tone

The matrix can store 120 different signal routings with 3 millisecond switching time between routings. The Eventide TimeFactor stores 100 different delay presets. The 2x Eventide H9’s can host 99 presets from across the Eventide algorithm collection with the TC Electronic Nova Drive providing 18 different OD’s & Distortions. With a system like this, the only limitations on sonic possibilities are the player’s creativity.

The onstage controller board features the almost limitless RJM Music Technology, Inc. MasterMind GT-10 with 2x Boss Effects Pedals FV500L Expression Pedals.

The offstage effects board routing is dynamically switched per preset by a Sound Sculpture 8F Matrix with an RJM Music Mini Effect Gizmo & Y Not slaved to the matrix for further switching duties.

Effects are 2x Eventide H9’s + 1x Time Factor, 1x TC Electronic Nova Drive, 1x Mu-FX TruTron, 1x Fishman Aura, 1x Xotic SP Compressor.

The client had a unique request for the design, the layout and ergonomics had to serve manual articulation due to accommodate occasional use of the effects board without a MIDI controller.

To facilitate this request, we built “Aux Switch” controllers for the Eventide effects pedals, and a footswitch to toggle through presets in the 8F.

System Design, Fabrication & Programming by Nice Rack Canada.

FAQ: What is the Different between the New and Previous Effect Gizmo

Although the New Effect Gizmo has been out for over a year, we still are asked what is the difference between the new and old one.

There are only a few changes in the new Effect Gizmo:

– The audio circuitry has been improved to increase headroom and reduce noise.

– The Click Stopper is improved – more transparent

– There is now a front panel XLR MIDI jack for connectivity with our Mastermind GT MIDI controller.

– Blue LEDs!


RIg of the Day: Robin Finck of NIN Rig with the RJM Mastermind GT and RJM Effect Gizmo

We love this drawing by Adam of Guitar Geek of Robin Finck’s 2014 Rig.

This RJM Music’s Rig of the Day features an RJM Mastermind GT and an RJM Effect Gizmo. Robin’s Guitar Tech, Chris Whitemeyer, says: “Robin loves how fast we can create new sounds and presets with the Fractal Axe-Fx II and RJM Mastermind GT Midi Controller. It lets him use his favorite guitars. I have to say, the Fractal & RJM editing software is just as COOL as the actual gear. We have – and use – 137 Fractal presets.”

Robin Finck 2014 Guitar Rig

Robin Finck 2014 Guitar Rig









For a detailed gear diagram of Robin Finck’s Nine Inch Nails stage setup that traces the signal flow of the equipment in his 2014 guitar rig go to the Guitar Geek website.






Behind the Scenes Look at the New Y-Not

A Behind the Scenes Look at the New Y-Not: An Interview with Ron Menelli of RJM Music

New Y-Not


Why did you decide to redesign the Y-Not?

Ron: We figured out a way to modify the Y-Not to have programmable phase inversion a couple of years ago. This feature was needed when running two channel switching amps at the same time. Some channel combinations would be in phase others would be out of phase. A midi controlled phase switch solves this problem.

We did this mod for a couple of users and soon found that I was spending too much time modding Y-Nots so I figured it was time to include the feature in a new revision.

Are there any other features that you decided to add to this new Y-Not?

RON: We also had requests from customers who use piezo equipped electric guitars. These guitars send both magnetic and piezo pickup signals down a TRS cable. Ideally, each signal should be kept separate and sent to a different amp. Magnetic signals sound best going through a standard guitar amp, but a piezo signal is best through a full range amp. These signals should be kept separate, but the user should be able to turn on or off each pickup’s signal at any time.

The original Y-Not wasn’t able to do that. It could only take a mono input signal. The new Y-Not, with its TRS input, can take both signals from the guitar, and send either signal (or both) to their respective amps under MIDI control.

Are there any other uses for the Y-Not?

RON: Yes, some users have been using the Y-Not in a configuration that we call the toN-Y. If you turn off the buffer and phase inversion, you can use the Y-Not in reverse (Hence the name toN-Y).

You can plug two signals into the A and B Output Jacks and use the input jack as an output. Turning on the A or B switch will select that input and send it to the output. People use this to select between two different guitars or two wireless receivers.

When does it ship?

RON: We are starting the build next week. We think they will ship the first week of August.

You can preorder on our website now and save $20.