Posted by & filed under Panels.

An editor for the Hughes & Kettner GrandMeister 36 and GrandMeister Deluxe 40 guitar amps.

Here is a new version for this editor (v2.5.2) with full support for GrandMeister Deluxe 40.

Once started the Editor will try to connect to the Amp (don’t forget to setup the “Input” / “Device” and “Output” / “Device” in the “Midi” menu). Once connected it will synchronize with the Amp by downloading all the presets from it.

There is a “Library” / “Amp” toggle button in the “Preset” section allowing to switch between editing the current Amp preset or the current Library preset. When in “Library” mode, the presets stored in the amp are not modified, unless you use the “Store” or “Store As” button.

The “Compare” section allows you to visualize and ear the differences between the current preset before and after your modifications. When flipping the toggle button, any modified command will turn orange and switch between the original and modified value. If you want to cancel your changes, simply hit the “Restore Orig.” button.

In the “Settings” screen, you can use the “Power Soak” toggle to switch between “Global” (Power Soak value is kept the same on every preset) or “Preset” (each preset has it’s own Power Soak value) mode. The “Global” mode is only available in “Library” mode.

The application is now capable of loading files generated with H&K’s iPad application. Simply select a .gm36memory file from the “Load” screen, it will be automatically converted and saved in a .gm36 file. You can also export your libraries into iPad compatible .gm36memory files with the “Save for iPad” button. Support for reading files exported from the Android application has also been added.

The Library Editor screen allows you to rearrange presets within you library files. Use shift + arrow keys to select multiple presets ; move presets using the dedicated up and down buttons ; and copy/paste patches using shift + c / shit + v shortcuts. Once you’re done, go back to the main screen and save your library or send it to the amp. You can also open an external file and use it’s content as a source for copy/paste operations.

Download Windows Application (2.5.2) – Downloads: 2,777

Download Mac Application (2.5.2) – Downloads: 1,161

Library Editor screen :



History :

– Version 2.5.2 : Fixed library file restore on startup.

– Version 2.5.1 : Fixed power soak setting backup on GM40. Fixed FSM 432 MKIII synchronization on GM40. Fixed errors on Library Editor when moving presets outside of 0-128 range.

– Version 2.5 : Fixed support for GrandMeister Deluxe 40 amp. Added bank number display.

– Version 2.4 : Added Library Editor + experimental support for GrandMeister Deluxe 40. Added support for Android App file import.

– Version 2.3 : Fixed delay time and tempo displayed values to align with iPad app. Fixed “callback” errors. Fixed synchronization between app and FSM footswitch. Added .gm36memory file support. Added Global Power Soak setting.

– Version 2.2.1 : Fixed delay / reverb / modulation state and global mute management. Fixed boost button image in compare mode.

– Version 2.2 : Fixed progress bar bugs. Added upload error recovery. Added compare mode. Added settings window. Added help window. Added connection detection procedure on connected/synced led click. Added update check.

– Version 2.1.1 : Fixed bug of Modulation Type rotary not updating. Fixed bug of fx loop / boost / noise gate not correctly synced with amp

– Version 2.1 : Updated design thanks to image resources kindly provided by Hughes & Kettner. Fixed Midi Out channel detection for “Store” and “Store As” buttons.

– Version 2.0.1 : Fixed “Restore” and “Send to amp” bug. Fixed bug with boost checkbox changing the modulation intensity. Fixed “Store” and “Store As” bug when not using Channel 1.

– Version 2.0 : Added Backup/Restore and preset management feature

– Version 1.1 : Added preset naming support

– Version 1.0 : First version with only live edit mode

20 Responses to “Hughes & Kettner – GrandMeister Desktop Remote”

  1. mvy

    Hi, would you be able to help? my amp does not sync with the app. The Library to amp switch and backup buttons are disabled when I connect.

    • fredo

      Hi mvy,
      Send me an email, I’ll come back to you.
      Use the “Send feedback” link in help page of the app.
      If the editor does not sync it’s most likely a MIDI setup issue.
      Make sure the MIDI OUT of your computer’s MIDI interface is connected to the MIDI IN of the amp and the MIDI OUT of the amp the the MIDI IN of the computer’s interface.
      You also need to select the appropriate input device and output device in the MIDI menu of the app.
      One last thing, several people reported issues with 5$ cheap Chinese USB/MIDI interfaces, so don’t buy them…

      • Cosmoplex

        Hi Fredo, I have the same problem. Midi out seems to work but there no Midi in? Can’t switch from Library to Amp? Do you have any idea? Thanks for support!

  2. bordonbert

    Hi, new member here. Trying to use on WinXP PC & laptop. Same as Mvy and Cosmoplex above, responses come in, changes at amp show up in app on PC but can’t get anything the other way. Outgoing RAW midi messages in midi monitor reflect changes made in app but fields like Channel No and Val show [—-]. Channel is set to 1 in Input, Controller and Output and amp set to Channel 1, (0 LEDs on Channel). Is there a setting I have missed to enable send Channel No and Val etc information?

    • fredo

      Hi bordonbert,
      It is normal not to have any value in channel number and val columns since all the communication between the amp and the editor uses SYSEX messages (which do not have channel and value content).
      Most of the time the “one way only” communication syndrome comes from a faulty USB/MIDI interface…
      If you use a cheap no-name interface, I suggest to try and buy an interface from a known brand like M-Audio.
      Best regards,


      • bordonbert

        Thanks Fredo. What you say fits perfectly with my situation and what I have now found. Cheap Chinese interface is on the ball, I have of course ditched it for this instance. I remembered I have a Lexicon Lambda which has MIDI throughput so I have tried that and can report it worked brilliantly from the word “Go”! Most impressive bit of software you have come up with.

        Now for a suggestion. There is a setting where the Power Amp settings can be set to “Global”. I assume this means that Presence and Resonance can be locked to a single setting and don’t change with presets. How about adding a similar switch to lock the Power Soak setting so it doesn’t get kicked up to 36W every time I select a new factory preset?

        I know you can resave each preset to a new slot with the lower Power Soak level in there, but it would be nice to use the default factory range as they are but tell the amp “change everything according to the new selection but leave the Power Soak at 5W for all”. The Power Soak is the only one I can think of which could really benefit from this.

        But thanks for all your effort, the windows version is a great resource. And the Lexicon Lambda can be added to the list of working interfaces.

  3. psn1982

    Give me please models of USB to Midi adapters whats work correctly with GrandMeister 36 on Windows XP and android.
    Chinese adapter at price 5$ from aliexpress dont work.

  4. TRT

    Hi fredo,
    this is freaking great stuff: V2.3 with the fixes. My setup GM36, UM ONE, Yamaha FS7, FSM 423 MK III, WinPC works like CHARM! The whole setup is working in each and every direction Callback errors gone. It is a REAL efficient environment now!!! BIG BIG THANKS!!!! Is there any plan to have 2.3 also availble for MAC (using this on stage …..)??
    Cheers, TRT

    • TRT

      Just to share my Setup & connections:
      WinPC -> USB (UM ONE)
      UM ONE mido out -> FSM Midi In
      FSM Midi out -> GM36 Midi in
      GM36 Midi Out -> UM ONE Midi in
      USB UM One -> Win PC
      Boom – Done

  5. psn1982

    Hi, Fredo!
    1. I use GM36 and app v 2.5 on windows 7. But in settings showed amp type gm40. It’s normal?
    2. On library mode if I switch preset on PC, preset don’t changed on FSM-432 midiboard, displayed old number on midiboard. But if I switch button on midiboard, preset is changed in library. Synchronization work in one direction. On amp mode all very well in both direction on PC.
    It is bug?
    On android app in library mode synchronization with midiboard is work.

    Sorry for my English.

      • psn1982

        In version 2.5.2 GM36 synchronization with midiboard on library mode don’t work absolutely, in version 2.5 worked in one way from midiboard to PC. But i see new bug. On library mode if I switch preset on PC, preset don’t changed on FSM-432 midiboard. If I press button on midiboard in library mode, I can not change preset in library, because toggle on application switched from library to amp mode. Why ?

        • fredo

          Hi psn1982,
          What you describe is not a bug : the FSM-432 is not meant to be used in Library mode since it will change the preset on the amp and break synchronization between the library preset displayed on the app and the amp preset loaded on the head.
          For that reason I made the app switch to amp mode whenever you use the FSM, so that what’s displayed on the amp and in the app stay consistent.

          • psn1982

            Hi, Fredo!
            But on android tablet pc FSM-432 work very well in amp mode and app (library) mode. And synchronization don’t breaking between library presets and amp presets, because it different presets. I can work separatly with amp presets loaded to amp and app presets stored in app with midiboard. I can switch preset on library with keyboard and mouse or with FSM-432. And on display on FSM and adroid i see actually information (number preset wrom library). For example, I can play on guitar at home with FSM-432 on library presets and don’t change presets loaded to amp for live concerts. If i need switch preset stored to amp, I swich toggle app-amp to amp mode on adroid and select preset with mouse or FSM. If I need new preset on amp, I load it from library to amp. I can shoot video with android and FSM-432 and send it on email.

  6. sms

    I have just used Fredo’s latest version 2.5.2 with an iRig Midi 2 USB interface and a Grandmeister Deluxe 40 and everything I tried worked great. I can’t thank Fredo enough for building this. This app saved me from buying an iPad just for this amp. The library editor is such an awesome and useful feature. It will save me a ton of time when trying to reorder my patches. THX

Leave a Reply

You must be logged in to post a comment.