Athena NK5.5-301 Digital Piano - THE FLAGSHIP
Athena™ NK5.5-301: The Flagship Experience
Revolutionary Design. Professional Performance.
Meet the Athena NK5.5-301, our premier digital piano designed for the discerning pianist. Built for those who demand the highest levels of comfort, confidence, and musical freedom, the 301 is the ultimate realization of our 30-year mission. With our signature 5.5-inch octave keys, the Athena Flagship makes the most demanding advanced repertoire accessible—without pain, tension, or compromise.
The Professional Standard
The 301 is engineered to provide a seamless transition for pianists used to high-end acoustic instruments. It offers:
Sophisticated Touch: A highly responsive action that captures every nuance of your performance, from delicate pianissimo to powerful fortissimo.
The Athena Signature Sound: A beautifully warm, resonant piano tone designed to inspire hours of practice and performance.
Ergonomic Mastery: Specifically tailored for professional pianists, teachers, and dedicated students who want to explore the full breadth of piano literature without limits.
Intuitive & Versatile
Whether you are recording in a studio, teaching the next generation of pianists, or performing at home, the 301 provides an intuitive interface and reliable performance that brings out the very best in your playing.
Visit our Hand Size page to see why 5.5" is right for you.
Specifications & What’s Included
Keyboard: 88 Professional Weighted Keys
Octave Width: 5.5-inch Flagship Standard
Included Accessories: Sustain Pedal, Music Rest, and Universal Power Adaptors (Multiple Countries).
See a more detailed Spec list below
Note: The Integrated Wooden Stand with Triple Pedal System shown in images is a recommended optional upgrade for a complete grand piano experience.
Join the Revolution
The Athena NK5.5-301 represents the pinnacle of narrow-key technology. It is more than an instrument; it is the key to unlocking a lifetime of musical potential.
Exclusively from Narrow Key Pianos.
Keyboard Specifications
KEYBOARD
88 Narrow Keys
Graded Hammer Action
5.5" Narrow Key Octave (14cm)DISPLAY Backlit LCD
MAX POLYPHONY 256
SOUND / VOICE 750 preset + 50 user
STYLE 280 preset + 50 user + 50 expansion styles
MUSIC LIBRARY 140 songs • 50 album
AMPLIFIER 2 x 23 watt • 2 x 23 watt
SPEAKER 2 x (16 x 7) cm oval • 2 x 3 cm
DIMENSIONS 131.0 x 29.4 x 12.4 cm or 4'3" x 11.6" x 4.9"
WEIGHT 27lbs
POWER DC 12V
CONNECTION 1 x USB-A (Device) • 1 x USB-B (MIDI & Audio) • MIDI in / out • Headphone jack (1 x 1/4” • 1 x 1/8”) • Input jack L • R1 • R2 • DUO (1 x 1/4”) • Output jack 2 x 1/4" (L/L+R, R) • Pedal (Unit / Sustain / Expression)
LAYER / SPLIT STYLE CONTROL Start / Stop • Sync start • Intro / Ending • Main A / Fill in A • Main B / Fill in B • Main C / Fill in C • Main D / Fill in D • Chord on / off • Fade in / out
STYLE CREATOR Import from USB flash driver
CHORD TYPE 39 REVERB 32 types CHORUS 64 types
EFFECT D.A.S. • IFX (24 presets) MASTER EQ 5 types
MIXER Yes SEQUENCER 5 user songs (16 tracks)
PERFORMANCE MEMORY 6 x 32 banks • Lock
Q.S. / O.T.S. Yes PERFORMANCE ENHANCEMENT Arpeggiator • Harmony
AUDIO PLAYBACK MP3 • WAV AUDIO RECORDER MP3 • WAV
ASSIGNABLE CONTROLLER 3 x pedals • 1 x joystick
PITCHBEND Yes MODULATION Yes
PITCH ADJUSTMENT Transpose • Octave • Tuning • Scale tuning
METRONOME Yes TEMPO 5-320
OTHER CONTROL Touch sensitive • Sustain • Sound edit (Synth) • Piano parameters (3 types)
EXTERNAL DRIVE USB (256GB max) not included
Shipping Information
Shipping fees:
USA and Canada - $125 USDFor shipping outside of the USA and Canada, please contact us for a quote at info@narrowkeys.com




