The Yamaha DX7S is a later version of the Yamaha DX7 with more patch memory and a better MIDI implementation. It also has an improved DAC with 15 bits of resolution instead of the original DX7s 12 bits. The S in the same stands for single-timbre. The DX7IIFD and DX7IID are bi-timbral variants of the DX7S. *New Battery Installed by OEM Electronics and factory sounds reloaded*
**100V requires step down transformer**. With soft bag.