The Yamaha FC35 3-pedal unit offers an authentic feel and can be used with Yamaha Stage Pianos even when their corresponding wooden stand is not being used. Add expression to your playing, whether at home or in live performances. It is compatible with stage pianos P-121/P-125/P-125a/P-225/P-515/P-525/P-S500 and DGX-670. It enhances the signal by compressing the stronger frequencies while simultaneously boosting the weaker ones, without affecting its quality.