Moog Subsequent 25 & Sub Phatty | General Troubleshooting

To troubleshoot the Sub Phatty/Subsequent 25, I recommend the following steps in order:

TABLE OF CONTENTS

• SysEx Software
• Init Settings
• Note Calibration
• Factory Presets
• Pot Calibration
• Firmware Update

SysEx Software

Some of these troubleshooting steps requires the use of a SysEx software. This is a piece of software specifically designed for sending and receiving SysEx (.syx) files. These procedures specifically require sending the SysEx files from the software to the synth. Below are the two recommended SysEx software, and their associated method for setting up a MIDI output.

• SysEx Librarian (mac) - The synth will appear in the drop-down menu at the top of the screen.  
• Bome Send SX (windows) - Go to MIDI Out and select the synth from the choices provided.

If you are having issues sending a SysEx file, a common solution can be to adjust the SysEx data transfer speed to transfer slower.

• SysEx Librarian - Settings > Transmit Speed
• Bome Send SX - Options > Settings > Actual MIDI Speed

Init Settings

1. Engage SHIFT MODE by holding the BANK 4 button and pressing the ACTIVATE PANEL button.
2. Press the BANK 3, BANK 4, and PRESET 2 buttons so they are all lit.
3. Press the lowest C# key twice to confirm the selection.
4. You can find more information on SHIFT MODE HERE.

Note Calibration

1. Engage SHIFT MODE by holding the BANK 4 button and pressing the ACTIVATE PANEL button.
2. Press the BANK 3, BANK 4, and PRESET 4 buttons so they are all lit.
3. Press the lowest C# key twice to confirm the selection.

Factory Presets

1. Engage SHIFT MODE by holding the BANK 4 button and pressing the ACTIVATE PANEL button.
2. Press the BANK 3, BANK 4, and PRESET 3 buttons so they are all lit.
3. Press the lowest C# key twice to confirm the selection.

Pot Calibration

1. Subsequent 25 Pot Calibration files and instructions can be found HERE. 
2. Sub Phatty Pot Calibration files and instructions can be found HERE.

Firmware Update

1. Subsequent 25 Firmware and Instructions can be found HERE. 
2. Sub Phatty Firmware and Instructions can be found HERE.

A guide on how to send SysEx files to your synthesizer can be found HERE.