Kurzweil KA-S1 White
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- This item is covered for 3 years
Essential Information About the KA-S1 Keyboard
Essential Information About the KA-S1 Keyboard
- 88 Portable Keys: a compact and lightweight piano keyboard (9 kg), designed for easy transition from home to studio or stage.
- Expressive and Adjustable Touch: semi-weighted hammer action with 6 sensitivity levels to precisely adjust the response to your dynamics.
- Ready-to-Play Sound: 16 factory programs, KORE 1.0 library (128 MB of samples), and 128-voice polyphony for rich chords and smooth layering.
- Standalone and Connected: built-in amplification 30 W (2 x 15 W) through 4 stereo speakers and USB audio/MIDI for DAW integration.
Manufacturer Information
Kurzweil
https://www.kurzweil.com
support@kurzweil.com
------------------------
Safety manager:
IMS Distribution
Email: contact@ims-distribution.com
Address:
A Compact Digital Piano to Play Anywhere, Without Hassle
The KA-S1 is aimed at musicians seeking a 88-key piano keyboard that is simple to set up, efficient for daily use, and comprehensive enough for rehearsals and small performances. Its slim profile, light weight, and integrated speaker system make it an excellent choice for practicing without heavy setup, while maintaining a true "performance" logic thanks to Split, Layer, and Duo modes.
Keyboard Design
The KA-S1 features 88 semi-weighted hammer keys to bring the playing feel closer to that of a piano, with a more controlled attack and better nuance management than a light-touch keyboard. The velocity sensitivity adjustable across 6 levels allows you to tailor the instrument to your style, whether you play with a light touch for finesse or more forcefully for a percussive and assertive sound.
Sound Quality
The sound section is based on 16 factory programs covering essential needs, enhanced by the KORE 1.0 library totaling 128 MB of samples. With a 128-voice polyphony, the KA-S1 remains clean and smooth in rich chords, fast passages, and Layer stacks. For playing without external amplification, the integrated 30 W (2 x 15 W) system powering 4 stereo speakers offers balanced sound projection, ideal for apartments, rehearsals, or small venues.
Built-in Effects
- Reverb
- Chorus
- EQ (bass and treble)
Technical specifications
| Effects | Reverb, EQ, Chorus | Touch | Heavy |
| Arpeggiator | No | Split & layer | Partner mode, layer, split |
| Bluetooth | No | Max polyphony | 128 |
| Speaker diameter | 4" | USB to Host port | No |
| Number of speakers | 4 | Outputs | Mono & stereo audio, 3.5 mm headphone, Pedal output |
| Velocity sensitive | Yes | Color | White |
| MIDI DIN I/O | No | Finishing | Matt |
| Number of keys | 88 | ||
| Sensitivity | adjustable across 6 levels | Power | 30 W (2 x 15 W) |
| Number of factory programs | 16 | Speakers | 4 stereo speakers |
| Reverb | yes | Analog input | 1/8-inch stereo |
| Chorus | yes | Analog outputs | 2 RCA (left/right) |
| EQ | bass and treble | Headphone output | 1/4-inch |
| Modes | Split, Layer, Duo | MIDI | via USB |
| Transposition | full | USB | audio/MIDI compatible |
| Tuning | adjustable | Optional accessory | battery operation (8 D batteries) |
| Metronome | 11 time signatures | Dimensions | 1270 x 280 x 80 mm |
| Recorder/Sequencer | 1 track, 1 song | Weight | 9 kg |
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Questions frequently asked
Does the Kurzweil KA-S1 White have a weighted 88-key keyboard?
This model features 88 semi-weighted hammer action keys with velocity sensitivity adjustable across 6 levels. The touch allows better control over attack and dynamics compared to a light-action keyboard.
What is the power of the built-in speakers?
The built-in sound system delivers 30 W total, i.e., 2 x 15 W, through 4 stereo 4-inch speakers.
Is it possible to play with headphones and connect an audio source?
Two 1/4-inch jack headphone outputs are available. A 1/8-inch stereo mini-jack analog audio input allows connection of an external source. The left/right RCA outputs can power an external sound system.
What playing modes are available on this digital piano?
This instrument offers Split, Layer, and Duo modes. The Duo mode notably allows splitting the keyboard for four-hand playing.
Can the KA-S1 operate on batteries and be used for music production?
Operation on 8 D batteries is available as an option. The USB connection handles audio and MIDI exchanges with computer equipment, while polyphony reaches 128 voices.
