Kurzweil KA-S1 White

Kurzweil KA-S1 White is a portable digital piano in a white finish, built on an 88-key semi-weighted keyboard with six levels of adjustable touch sensitivity. The KORE 1.0 sound library (128 MB) delivers 16 factory voices anchored by optimised samples of a German D grand piano drawn from Kurzweil's pro product line, extended by electric pianos, organs, harpsichord, clavs, strings, guitar and bass. At 9 kg and 127 cm in length, the KA-S1 is compact enough to carry to lessons, rehearsals or small gigs without the logistics of moving a full-size digital piano.

Four-speaker system and USB Audio in a portable form factor

The integrated sound system uses four drivers — two woofers and two tweeters — powered by dual 15 W digital amplifiers, producing a stereo spread that's unusual at this size and weight. A single USB cable registers the KA-S1 in any Mac or Windows DAW as both a class-compliant audio interface and a MIDI controller simultaneously — no drivers, no second device needed. RCA L/R outputs connect to active monitors or a hi-fi system, while the 1/8" stereo input feeds an external audio source directly through the onboard speakers.

Full 88-key range, battery-powered independence

Split, Layer and Duo modes with an adjustable split point cover solo practice and two-player lessons alike — Duo divides the keyboard into two identical octave ranges, removing the need for a second instrument during teaching sessions. The 1-track MIDI recorder and 11-signature metronome complete the core practice toolkit. Power comes from the included DC 12 V / 2 A adaptor or eight alkaline D-cell batteries, so the KA-S1 runs wherever there is no outlet. A sustain pedal, power adaptor and snap-in music rest are all included in the box.

KEY FEATURES

• 88-key semi-weighted keyboard with 6-level adjustable touch sensitivity
• KORE 1.0 sound library (128 MB) — 16 factory voices based on German D grand piano samples
• 128-note polyphony
• Split / Layer / Duo modes with adjustable split point
• USB Audio + MIDI — single cable, MIDI controller and audio interface in DAW
• Sound system: 30 W (2 x 15 W), 4-speaker stereo (2 woofers + 2 tweeters)
• RCA L/R analog outputs, 1/8" stereo analog input
• MIDI recorder: 1 track, 1 song
• Metronome: 11 time signatures
• Effects: Reverb, Chorus, EQ (Bass and Treble)
• Power: DC 12 V / 2 A adaptor or 8 alkaline D-cell batteries
• Included: power adaptor, sustain pedal (switch type), snap-in music rest
• Color: White

TECHNICAL SPECIFICATIONS

• Keyboard: 88-key, semi-weighted, adjustable touch sensitivity (6 settings)
• Sound library: KORE 1.0 (128 MB)
• Polyphony: 128 voices
• Factory programs: 16
• Performance modes: Split / Layer / Duo
• Transpose: full transposition to any key, +/- 1 octave
• Tune: +/- 100 cents
• Effects: Reverb, Chorus, EQ (Bass and Treble)
• Metronome time signatures: 11
• Recorder / sequencer: 1-track, 1 song
• Sound system: 30 W (2 x 15 W), 4-speaker stereo (2 woofers + 2 tweeters)
• Analog input: 1 x 1/8" stereo
• Analog outputs: 2 x RCA (L/R)
• Headphone: 1 x 1/4"
• MIDI: via USB
• USB: Audio / MIDI
• Pedal input: 1 x sustain (switch pedal included)
• Dimensions: 127 cm (L) x 28 cm (D) x 8 cm (H)
• Weight: 9 kg
• Power: external 12 V DC / 2 A adaptor or 8 alkaline D-cell batteries (not included)
• Color: White
• Included accessories: DC power adaptor, sustain pedal (switch type), snap-in music rest