Yamaha PSR-S670

The Yamaha PSR-S670 is a professional arranger workstation keyboard. It has been used by many professional musicians, including John Legend, David Guetta, and Steve Aoki. The PSR-S670 features a 61-key keyboard with touch response, a large selection of voices and styles, and a wide range of effects. It also has a built-in sequencer, allowing users to record and edit their own music. The PSR-S670 also has a variety of connectivity options, including USB, MIDI, and audio inputs and outputs. Additionally, the PSR-S670 has a variety of features, such as a built-in arpeggiator, a vocal harmonizer, and a variety of real-time controllers.