Yamaha YDP-166 Black

ARIUS: The Yamaha Spirit at Home, at the Heart of the Range

For over a century, Yamaha has built pianos designed for the stage and studio. The ARIUS series brings this heritage into a home format: an elegant cabinet, immediate playability, and above all a touch response designed to support both the first years of lessons and resuming after a break. In this spirit, the YDP-166 emphasizes expressiveness (subtle nuances, legato control, attack precision) and coherent sound reproduction, so that every session feels more like a real piano moment than just simple practice.

Keyboard Design

The Yamaha ARIUS YDP-166 is equipped with an 88-key GrandTouch-E keyboard, designed to reproduce a more natural acoustic piano feel, with precise dynamic control. Its touch offers several sensitivity curves (Hard, Medium, Soft, Fixed) to adapt the response to your playing. The keys feature a synthetic ivory and ebony coating for better grip, and the escapement provides a more realistic sensation in pianissimos and repetitions. On the pedal side, there is a complete configuration with 3 pedals: Damper (with half-pedal function), Sostenuto, and Soft.

Sound Quality

The main sound is based on sampling of the Yamaha CFX, the brand's iconic concert grand piano, for a clear and balanced timbre. The VRM Lite (Virtual Resonance Modeling) technology enhances the sensation of resonance and harmonic coherence, while the IAC (Intelligent Acoustic Control) helps maintain a pleasant perception even at low volume. The maximum polyphony of 192 notes allows working on pieces rich in pedal and chords without note cut-offs. For sound projection, the YDP-166 combines 2 x 20 W amplifiers and 2 x 12 cm speakers with diffuser, to achieve a more focused image and homogeneous sound from bass to treble, particularly appreciated in a living room or study room.

Built-in Effects

• Reverb: 4 types
• Stereophonic Optimizer
• Intelligent Acoustic Control (IAC)

Technical specifications

Effects	Reverb, Acoustic	Touch	Heavy
Arpeggiator	No	Split & layer	Partner mode, layer
Bluetooth	Yes	Max polyphony	192
Speaker diameter	4,7"	USB to Host port	Yes
Number of speakers	2	Inputs	USB audio, USB Midi
Velocity sensitive	Yes	Outputs	3.5 mm headphone, 6.5 mm headphone
MIDI DIN I/O	No	Color	Black
Number of keys	88	Finishing	Matt

Keyboard type	GrandTouch-E, hammer action	Maximum polyphony	192 notes
Surface	synthetic ebony and ivory	Resonance modeling	VRM Lite, Virtual Resonance Modeling
Escapement	yes	Amplification	2 x 20 W
Touch sensitivity	Hard, Medium, Soft, Fixed	Speakers	2 x 12 cm
Dual Mode	layering of two sounds	Sound projection system	speakers with diffusers
Duo Mode	two keyboard zones with the same range	Reverb	4 types
Number of pedals	3	Intelligent Acoustic Control, IAC	yes
Damper pedal	yes, with half-pedal function, half-pedal	Stereophonic Optimizer	yes
Sostenuto pedal	yes	Sound demonstrations	10
Soft pedal	yes	Classical songs	50
Piano sound	Yamaha CFX sampling	Lesson songs	303
Number of sounds	10	Data capacity per song	approximately 150 KB, or approximately 11,000 notes