The Celviano line of pianos has been refined for those who demand an authentic grand piano experience. The new AP-420’s traditional design houses new stereo grand piano sounds and enhanced “Ivory Touch” keyboard. Utilizing a new tri-sensor spring-less 88 note scaled hammer action, every nuance and detail of your performance is captured. A new 4 layer stereo grand piano sound delivers a natural, expressive and dynamic piano experience. The AP-420 features a total of 16 built-in tones, with the ability to layer two sounds or split the keyboard to allow a bass sound in the left hand. Its built-in SD card slot allows you to load and save song files and the dual 20W speaker system delivers a sound that will resonate through your home. With 128 notes of polyphony, USB MIDI, Duet Mode, 1/4” audio outputs and more, Celviano’s advanced technology and sound will make the AP-420 the perfect addition to any home. State-of-the-art high-end digital pianos: the newly developed sound source – Linear Morphing AiF – offers the entire spectrum of authentic grand piano tones from Pianissimo to Fortissimo without abrupt changes to the sound during the transitions. The touch and note replay behavior for the scaled hammer action keyboards has been improved. The new “Tri-Sensor” concept makes even the most complex and demanding playing techniques possible. Developing virtuosos. Virtuoso playing. Specifications Keyboard: 88 keys, weighted scaled hammer action, Tri-Sensor keys, Ivory Touch Touch Response: 3 Sensitivity levels / Off Sound Source: 4 level stereo samples, Linear Morphing System Acoustic Resonance: Yes Polyphony (max): 128 Tones: 16 Reverb: 4 types Chorus: 4 types Brilliance: Yes Layer/Split: Yes Registration Memory: Yes Duet Mode: Yes Preset Songs: 60 Metronome: Beats: 0,2,3,4,5,6 Tempo Range: 20 to 255 Transpose: 25 Steps -12 / +12 semi tones Tuning Control: A4=440Hz +/- 99 cents (variable) Temperament: equal temperament + 16 scales Recorder: 2 Tracks / 1 Song USB Storage (to PC): Yes SD Memory Card Storage: Yes Speakers: 4.7” x 2” + 1” x 2” Amplifier: 20W + 20W Terminals Line Out: 2 USB: Yes Pedals : Damper, Soft, Sostenuto Headphones: 2 AC Adaptor: AD-24 Pedals: (Damper, Soft, Sostenuto) Yes Bench: Yes (height adjustable) Music Stand: Yes Score Book: Yes Dimensions and Weight Unit size w/stand: 54.9” (W) x 16.8” (D) x 32.9” (H) Unit weight w/stand : 82.2 lbs. Boxed size: 58.7” (W) x 22.6” D) x 20.8” (H) Boxed weight: 141.1 lbs.