Yamaha Synthesizer The Reface DX from Yamaha is a frequency modulation synthesizer offering simple controls and complex sounds in a small sizeBased on the DX-7 synthesizer, the DX is a re-imagined interface providing 8-note polyphony with four operators and twelve algorithms that capable of creating a variety of sounds from retro 80's to modern EDM. The DX's front panel offers a display screen and a multi-touch control interface to access functions, making sound design and exploration fast and easy. The operator section offers four operators arranged with twelve algorithms allowing various combinations of carriers and modulators. Full editing is available within the system menu allowing access to modes, frequency, and detune. Additional parameters include level controls, velocity sensitivity, feedback, and keyboard scaling rate. The envelope generators feature the classic attack, decay, sustain, and release (ADSR) controls. An envelope sets volume levels for carriers, while modulators