The Yamaha DX27S is a digital synthesizer that made its mark in the 1980s with its Frequency Modulation (FM) synthesis technology. Featuring 61 velocity-sensitive keys, it provides a user-friendly interface for creating rich and expressive sounds. The DX27S is an enhanced version of the DX27, incorporating additional features such as a joystick for real-time parameter control. Widely used in music production of its time, this instrument brought distinctive and evolved sounds through its FM synthesis capabilities.