The Yamaha DS55 is a digital synthesizer featuring 200 preset voices and the ability to store up to 100 user-created voices. It utilizes Yamaha's FM tone generation system to simulate acoustic, electric, and electronic instruments. The unit supports various play modes, including Single, Split, and Dual, as well as an Auto Performance system for accompaniment patterns.
| Keyboard | 61-key type |
|---|---|
| Preset Voices | 200 |
| User Voice Storage | Up to 100 |
| Backup Battery Life | Approximately 5 years |
Yes, the MASTER VOL control adjusts headphone volume when a pair of headphones is plugged into the PHONE jack.
The backup battery that retains RAM memory contents lasts for approximately 5 years.