The Yamaha PS-30B is a vintage analog synthesizer from the 1980s. It was used by a variety of artists, including Depeche Mode, New Order, and The Cure. The PS-30B is a two-oscillator synthesizer with a built-in chorus effect. It features a 32-note keyboard, two oscillators, a low-pass filter, an envelope generator, and a noise generator. It also has a built-in arpeggiator and a built-in sequencer. The PS-30B is capable of producing a wide range of sounds, from classic analog bass and lead sounds to more modern digital sounds.