The SPD-11 comes with 64 preset patches stored in memory, which you can freely edit. However, if you ever need to return the unit to its original factory state, you can use the System Initialize function. This operation restores the original data from ROM and deletes all user-edited content.
⚠️ All edited data will be lost during this process. If your SPD-11 contains important settings, please make a note of them or store the data externally before proceeding.
- Turn off the power.
- While holding down [▽] and [ALL/ENTER], turn the power on.
- Press [ALL/ENTER].
The Data will be initialized.
Owner's Manual is here: https://www.roland.com/us/support/manual_archive/