Factory Reset (Restore Factory Presets)

1. Press the Master/Global button.
2. Select option 3 (Erase Bank).
3. Use the Data Entry Control to select the Internal Preset Bank.
4. Press Enter. The display will ask if you are sure.
5. Press the Inc/Yes button to confirm.

Note: This procedure erases the current user bank. If the unit contains user data you wish to keep, ensure you have a backup.

Source: ESI-32 — e-mu-esi32-manual (manual)