Key Features 88 Weighted Keys Sampled from CFIIIS 9′ Concert Grand 205 Styles 192-Note Polyphony The black DGX-660 from Yamaha is an 88-key digital piano that features sounds based on samples from the company’s CFIIIS 9′ concert grand piano, a weighted keyboard with varying touch response across the key range, and Damper-Response DSP. To add to the genuine playing experience, the keyboard also provides 192-note polyphony that will easily