Kurzweil
Kurzweil SP1 Review
Kurzweil's sound engine in an affordable stage piano
Scores
How These Scores Were Calculated
Beginner
5.4| Factor | This Piano | Points |
|---|---|---|
| Base Score | — | 3.0 |
| Lesson Function | No | +0 |
| App Connectivity | No | +0 |
| Recording | Yes | +1 |
| Metronome | Yes | +0.5 |
| Transpose | Yes | +0.3 |
| Layer / Split | Yes | +0.3 |
| Preset Songs | 0 | +0 |
| Sound Variety | 16 sounds | +0.3 |
Night Practice
6.5| Factor | This Piano | Points |
|---|---|---|
| Base Score | — | 2.0 |
| Headphone Jacks | 2 | +2 |
| Headphone Type | 6.3mm | +1 |
| Headphone Optimization | No | +0 |
| Key Action Quietness | graded hammer action | +0.5 |
| Volume Control | Yes | +1 |
| Bluetooth Audio | No | +0 |
Portability
4.5| Factor | This Piano | Points |
|---|---|---|
| Base Score | — | 5.0 |
| Weight | 12.2 kg | +0 |
| Width | 1340 mm | -0.5 |
| Battery | No | +0 |
| Foldable | No | +0 |
| Key Count | 88 keys | +0 |
Touch Reality
6.0| Factor | This Piano | Points |
|---|---|---|
| Key Action Quality | graded hammer action (grade 5) | +3 |
| Key Count | 88 keys | +1.5 |
| Polyphony | 256 notes | +1.5 |
| Sound Modeling | No | +0 |
| Key Surface | plastic | +0 |
Our Verdict
The Kurzweil SP1 puts the company's legendary piano sound engine into an affordable, no-nonsense stage piano — 256-note polyphony, 16 carefully curated sounds, and nothing unnecessary.
Pros
- • Kurzweil's acclaimed piano sound engine — rich, expressive acoustic piano tones
- • 256-note polyphony — exceptional for the price, handles any passage
- • Lightweight at 12.2kg — easy to transport to gigs
- • Two headphone jacks for monitoring flexibility
- • Layer and split capability for combining sounds
- • USB MIDI and line outputs for professional connectivity
Cons
- • No built-in speakers — requires external amplification
- • Only 16 sounds — very focused selection
- • No Bluetooth, lesson function, or app connectivity
- • Graded hammer action is good but not premium-grade
- • Plastic key surface without ivory-feel coating
The Kurzweil SP1 is proof that great piano sound does not have to cost a fortune. Kurzweil has spent decades refining their piano engine, and the SP1 brings that expertise to the most affordable point in their lineup. The 256-note polyphony at this price is remarkable — even some pianos costing twice as much offer less. The trade-offs are predictable: no speakers, limited sounds, no modern connectivity. But for the stage musician who needs a lightweight keyboard that sounds genuinely beautiful through a PA, the SP1 punches well above its weight. It is one of the best-kept secrets in the affordable stage piano category.
Technical Deep Dive
About the Key Action
The SP1 uses a graded hammer action with plastic key surfaces. It provides a solid, weighted feel with appropriate grading from bass to treble. The action is responsive and suitable for both classical and contemporary playing styles. While it does not reach the premium feel of Kurzweil's higher-end models with Fatar actions, it strikes a good balance between playability and price. The plastic surface is standard but functional. For a stage piano at this price point, the key action is competitive and will satisfy most intermediate-level performers.
Who Is This Piano For?
The SP1 is for the gigging musician or church pianist who wants Kurzweil's famous piano sounds without the high price tag of their premium models. If you already know how to play and you need a reliable, lightweight stage piano that sounds superb through a PA system or monitors, the SP1 delivers exactly that. The 16 sounds are carefully chosen — you get excellent pianos, electric pianos, and a few essential organs and strings — rather than hundreds of mediocre tones. The 256-note polyphony means you never have to worry about note dropout, even with heavy sustain pedal use. This is not for beginners (no speakers, no lessons), but for working musicians on a budget, the SP1 offers Kurzweil quality at an accessible price point.
Specifications
| Keys | 88 |
| Key Action | Graded Hammer Action |
| Polyphony | 256 notes |
| Sounds | 16 |
| Weight | 12.2 kg |
| Speakers | — |
| Bluetooth | No |
| Key Surface | Plastic |
| Sound Modeling | — |
| Headphone Jacks | 2 |
| Headphone Type | 6.3mm |
| Headphone Optimization | No |
| USB MIDI | Yes |
| Line Out | Yes |
| Lesson Function | No |
| App Connectivity | No |
| Recording | Yes |
| Metronome | Yes |
| Transpose | Yes |
| Layer / Split | Yes |
| Preset Songs | 0 |
| Battery | No |
| Foldable | No |
| Dimensions (W×D×H) | 1340×340×100 mm |
| Stand Included | No |
| Pedal Included | Yes |
Recommended Accessories
Stand
A sturdy X-stand or furniture-style stand is essential if one isn't included.
Headphones
Closed-back headphones with good bass response make practice sessions more enjoyable.
Sustain Pedal
The included pedal is usually basic. A half-damper pedal upgrade is worthwhile for expressive playing.
Bench
An adjustable-height bench helps maintain proper posture during long practice sessions.
Frequently Asked Questions
Is the Kurzweil SP1 good for beginners?
It's decent for beginners. The Kurzweil SP1 scores 5.4/10 on our Beginner scale — it covers the basics but may lack some advanced learning features found in higher-scoring models.
Does the Kurzweil SP1 have Bluetooth?
No, the Kurzweil SP1 does not have Bluetooth. You'll need a USB cable for app connectivity.
How heavy is the Kurzweil SP1?
The Kurzweil SP1 weighs 12.2 kg (27 lbs). It scores 4.5/10 on our Portability scale. This is manageable for occasional moves but not truly portable.
Can I use headphones with the Kurzweil SP1?
Yes. The Kurzweil SP1 has 2 headphone jacks (6.3mm). It scores 6.5/10 on our Night Practice scale.
How many keys does the Kurzweil SP1 have?
The Kurzweil SP1 has a full 88-key keyboard, the same as an acoustic piano. This gives you the complete range for any piece of music.
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