New Product: Kurzweil SP1 Stage Piano

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Casio, Korg, Roland, Kawai, Yamaha, Dexibell and other manufacturers, have recently unveiled new digital pianos. Kurzweil, a name less familiar to some, also introduced their SP1 Stage Piano at last month’s NAMM show in California. This is a “sit down and play” digital piano with an 88 note “hammer-action” (simulated) keyboard.

Kurzweil SP1

Kurzweil SP1 Stage Piano – hover to zoom (desktop only)

Ray Kurzweil established the Kurzweil company back in the 1970s. Kurzweil himself is one of the world’s leading scientists, inventors and futurists. He was a pioneer in several fields. He invented: the first charge-coupled device (CCD) scanner; the first commercial text-to-speech synthesizer; and the first commercial print-to-speech machine for the blind. He was responsible, in 1983, for the Kurzweil K250 electronic keyboard instrument, one of the first to produce sounds generated from digital samples. This instrument, developed with additional input from Stevie Wonder, was the first to accurately simulate an acoustic grand piano.

Kurzweil Music Systems have continued to produce electronic musical instrument ever since. In 1990 Young Chang (the South Korean piano manufacturer) purchased the company. And Hyundai acquired Young Chang themselves in 2006. Ray Kurzweil re-joined the company in 2007. He also continues to write best selling books on science, technology and philosophy.

Kurzweil instruments are generally seen as “high-end” products. The SP1, however, is a lower cost, entry level, stage piano.

What is a “Stage Piano” ?

This is generally considered to be a digital/electronic instrument that is compact and relatively lightweight. The casework of a digital home piano generally takes the form of a console, whereas the stage piano either has detachable legs or sits on a stand as part of a keyboard rig. A stage piano doesn’t usually have speakers, but is fed to external amplification, or monitored on headphones. It typically has a weighted keyboard, and as well as recreating the sound and feel of the acoustic instrument, also offers the player an array of additional sounds including organs, electric pianos (e.g. Fender Rhodes, Wurlitzer) and a range of acoustic presets (strings, brass, tuned percussion, etc.).

Kurzweil SP1

Kurzweil SP1 Stage Piano

At just 12 kg (26 pounds), the SP1’s lightweight chassis is considered portable. Compare this to the original K250 which weighed 43 kg (95 pounds), nearly four times as much.

Kurzweil Piano Sounds

The focus of the SP1 is the German 9’ Artis Grand emulation, whilst there are also a range of electric pianos from Kurzweil’s Forte SE keyboard. And with 256 note polyphony, there is no chance of voice drop-out.

A useful feature is the ability to split up to four presets across the keyboard or to layer them up. Nothing new here, but the SP1’s interface makes this very easy to control. In fact Kurzweil has shied away from the menu driven control option, and gone for a much more direct on-board control button/knob approach.

Kurzweil SP1 Stage Piano

Kurzweil SP1 Stage Piano with performance wheels top right – hover to zoom (desktop only)

The SP1 includes both modulation and pitchbend wheels. These aren’t relevant for basic piano sounds, but can be used with other presets, or when the Kurzweil is acting as a master keyboard driving external modules.

The Kurzweil SP1 ships this month (February 2018). Price (guide only): €799 (Euro), $995 (US), £749 (UK).


Keyboard:88 note, fully-weighted hammer-action with velocity sensitive keys
Display:3 digit LED
Polyphony:256 voice polyphony
Multitimbral:16 parts (one per MIDI channel)
Quick Split/Layer:Easy access with adjustable relative volume
Factory Programs:16
General MIDI:No
String Resonance:Yes
Effects:Reverb, Chorus, Tremolo, Delay, EQ
Controllers:1 pitch wheel
1 modulation wheel
4 front panel category volume knobs
2 transpose switches
1 switch pedal* input (sustain)
1 continuous control pedal input (expression/volume)

*(1 switch/sustain pedal is included)
Analog Outputs:(2) 1/4"
Analog Inputs:(2) 1/4"
Headphones:1 back-panel 1/4" headphone output
MIDI:In, Out
USB:• Two USB ports (one A port / one B port)
• Complete MIDI functionality over USB for connecting to/from an external computer sequencer
• Operating System updates from PC/Mac/Flash Drive
FREE OS Updates:OS updates over USB and/or Flash Drive
Included Accessories:Power adapter, Switch pedal, USB cable
Height:(5.75") (14.6cm)
Depth:(15") (38.1cm)
Length:(52.5") (133.35cm)
Weight:(27.25 lb.) (12.3 kg)
Power:External Power Supply, 15VDC 2.5A

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