The CD-RW900MKII is for professional acoustic applications, including PA and sound reinforcement

The CD-RW901MKII, being a superior model, was developed by reinforcing the analogue input and output terminal of the CD-RW900MKII in addition to implementing external control terminals.
Long-run continuous recording (overlap recording) is now made possible by connecting multiple CD-RW901MKIIs.
The ISRC/RID code display function allows the CD-RW901MKII to also be used as a recorder/player for checking in a mastering studio.

The CD-RW900MKII is perfect for professional acoustic settings such as PA and sound reinforcement, and the CD-RW901MKII is an optimal device to be used within professional acoustic settings like mastering studios and broadcasting stations.
Both devices could be enjoyed for many years in their respective environment.