Yamaha DGX – 660 Digital Piano – Portable Grand Piano – 88 Weighted Keys. Gloss Black Duet Piano Stand. The new Yamaha DGX-660 is the latest ensemble digital piano to feature a variety of interactive features that make learning, playing and sharing music fun for everyone. The new Piano Room feature of this Portable Grand lets you choose from a variety of pianos and acoustic settings to create your very own personal piano environment. Yamaha keyboards are known for their versatility. Now you can connect a microphone so you can sing along while you play, hearing your voice with digital effects through the instrument’s speakers. Plus you can even record ...