The SP-404MK2 is compatible with project data from the SP-404SX and SP-404A. Data from SP series models earlier than the SP-555 is not supported.
To import projects from supported models, refer to the following:
- SP-404MK2 unit: "Importing a project from the SP-404SX/SP-404A (IMPORT PROJECT)" in the SP-404MKII Reference Manual
- SP-404MK2 App: "Importing a project from the SP-404SX/SP-404A" in the SP-404MKII App User's Guide