The DGX-670 is Yamaha's 88-key portable grand, combining a Graded Hammer Standard weighted keyboard with CFX concert grand sampling. Its standout feature is built-in auto-accompaniment: hundreds of styles with Adaptive Style and Smart Chord follow your playing to add a full band. It suits home players and singer-songwriters who want piano feel plus arranger features, and it is a step above plain slab pianos like the P-125 in sounds and backing styles, though it is heavier and bulkier to move.
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Owners rate it highly, praising the piano sound and the realistic weighted action. The arranger styles and accompaniment are the other big draw. Some find the interface and menu system take getting used to.
The Yamaha DGX-670 is a portable digital piano with 88 weighted keys. It uses Yamaha's Graded Hammer Standard (GHS) action, which feels heavier in the low end and lighter in the high end, like an acoustic grand. The keytops are matte black and absorb moisture.
Its piano sound comes from CFX Stereo Sampling of Yamaha's 9-foot CFX concert grand. Virtual Resonance Modeling (VRM) adds variation in expression. The piano has 601 instrument voices and 29 drum/SFX kits. Super Articulation Voices reproduce the expressive nuances of non-keyboard instruments, and Dual Mode combines two voices, such as piano and strings.
Adaptive Style and Smart Chord create full-band accompaniment that follows your playing. Smart Chord plays chords from simple pop triads to complex jazz 7th chords with just a few fingers. Unison & Accent adds a doubled voice to the melody and musical hits. The piano also has a color LCD screen, a control panel with large buttons, Bluetooth audio, USB audio recording and a microphone input.
