Kurzweil SP4-8

88-key Stage Piano with 128 Sounds, Built-in Drum Patterns, and Large LCD Screen
Kurzweil SP4-8 image 1
Kurzweil SP4-8 image 1
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Kurzweil SP4-8
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This Is One Serious Stage Piano

Want a lightweight, great-sounding, easy-to-use stage piano? The Kurzweil SP4-8 gives you Kurzweil's world-class sonic mojo in an affordable, portable package, making available to a new generation of players the same soundset featured in Kurzweil's acclaimed PC3 line of professional keyboards. The SP4-8 won't break the bank - or your back. Weighing a svelte 39 pounds, the SP4-8's chassis leaves a small footprint - giving you the spotlight, instead of your keyboard. And Kurzweil's esteemed hammer-weighted action with velocity sensitive adjustable keys gives you the keyboard feel that has made Kurzweil stage pianos an industry-standard.

Whether onstage or in the studio, you need an instrument that places the crucial features precisely where you need them. The SP4-8's intelligently designed interface makes your life easier by doing just that. Create splits and layers (up to 4 zones) with the touch of a button, select presets and setups from easily accessible category and program buttons, and quickly adjust effects parameters - everything is laid out so you can focus on the important job of making music.

In spite of its affordability, the SP4-8 makes no compromises when it comes to sound. Loaded with 128 programs directly from Kurzweil's PC3 series, the SP4-8 delivers the creme de la creme in virtually every sound category. You get Kurzweil's holy-grail Triple Strike Grand Piano, classic electric pianos, lush strings and orchestral instruments, and top-notch basses, guitars, winds, brass, percussion and drum kits. All this sonic firepower elevates the SP4-8 to the top of the stage piano pantheon.

You get a selection of Kurzweil's signature KB3 organs - with all KB3 parameters accessible via external MIDI control. Further broadening your sonic palette, the SP4 can also load programs created on PC3 and PC3LE series keyboards (within the limits of the SP4's DSP resources), and Kurzweil will offer additional sounds for download on their website as they become available. With its 16-part multitimbral architecture, the SP4-8 is a powerful tool for composing and recording music in conjunction with your favorite DAW.

Effects? The SP4-8 features dozens of pro-quality effects ported straight from the PC3. From flawless concert hall reverbs and crisp delays to powerful distortion and amp simulation effects - the SP4-8 gives you sophisticated tools to add layers of depth and dimension to your music. The most relevant effects parameters are mapped to the SP's Timbre dial, so you can sculpt your sound without descending into menu purgatory.

The Kurzweil SP4-8 is satisfying to play, a breeze to transport - and its sounds are breathtaking. If you're in need of a serious professional stage piano, this one deserves your serious consideration.

Kurzweil SP4-8 88-key Stage Piano Features at a Glance:
  • Keyboard: 88-note hammer-weighted action with velocity sensitive adjustable keys
  • Display: 16 character LCD w/ front-panel contrast adjust
  • Polyphony: 64 Voice Polyphony, dynamically allocated
  • Multitimbral: 16 parts (one per MIDI channel)
  • Quick Split/Layer: Easy access with adjustable relative volume (up to 4 zones)
  • Factory Presets: 128 (taken from the acclaimed PC3 sound set, including select KB3 organs and KVA synths)
  • User Presets: 64
  • Factory MIDI Setups: 64
  • User MIDI Setups: 64 (with 4 programmable zones for splits and layers)
  • Effects: Dozens of complex effect chains taken from the PC3, with everything from concert hall reverbs to amplifier simulations and rotary effects
  • Controllers: Pitch wheel, modulation wheel, 1 front panel knob, 1 stereo switch-pedal input (supports two pedals with Y connector), 1 continuous control pedal input
  • Analog Outputs: Two 1/4" balanced TRS analog (24-bit DACs)
  • Headphones: 1 rear panel 1/4" headphone output
  • MIDI: In, Out
  • USB: Complete MIDI functionality over USB
  • User program/setup file transfer: to/from Mac/PC
  • Operating System updates: From Mac/PC
  • FREE OS Updates: OS updates over USB
  • FREE Sounds: The SP4 can also load programs created on Kurzweil's PC3 and PC3LE series keyboards (within the limits of the SP4's DSP resources). Additional sounds will also be available for download on Kurzweil's website (loaded over USB)
  • Power: External 15VDC 1.0A power supply
  • Height: Rear = 5.5", Front = 3.25"
  • Depth: 13"
  • Length: 55.13"
  • Weight: 39 lbs
Check out the The Kurzweil SP4-8 88-key Stage Piano!

Tech Specs

Number of Keys 88
Type of Keys Weighted
Other Controllers 1 x Pitchbend, 1 x Mod Wheel, 1 x Knob
Presets 128
Polyphony 64 Notes
Effects Yes
Audio Outputs 2 x TRS
Pedal Inputs 1 x TRS (Stereo Switch-pedal), 1 x TS (Continuous Control)
Height 5.5"
Width 55.13"
Depth 13"
Weight 39 lbs.
Manufacturer Part Number AMS-SP4-8

Customer Reviews

Based on 9 reviews
Write your review

Kurzweil SP4-8

Awesome keyboard with incredible sound quality and features for the money!
Music background: Professional Musician/Instructor

Fantastic for its role

Nice bread and butter sounds, although the default Rhodes and Strings are a bit different than I would prefer. (This was easily corrected with the downloadable sounds from Kurzweil's website...) The keybed is convincing enough for nice expressive piano playing, and it is built like a tank. This makes a great addition to my existing Kurzweil rig: PC88, PC2R, and SP76, and fills a needed spot in terms of helping me avoid too much gear schlepping by letting me practice on one and keep the other at the venue. The addition of the Soundtower Editor gives so much more capability, and should be required. The price point is a no brainer. Buy this.
Music background: Worship team musician, keys in a small band, hobbyist

Excellent Stage Piano

Excellent samples, nice touch, and configuration/layout is easy to use. The SP4 is a definite improvement over the Korg SP-250 and Yamaha P105, that I owned previously. The feel is just like any of the latest weighted key systems. I do find it less stiff than the Casio and Korg weighted systems and more comparable to the Yamaha. It seems to be easier for me to play a soft ballad with a lighter touch. I've been working with my EQ on a 200 watt amp, and I've got a nice, well rounded acoustic piano and electric piano sound to play in the swing band. As I develop and expand my chops, I'm looking forward to playing the synths and organs, doing some rock or blues. The sample quality in this keyboard keeps me wanting to practice and expand my abilities. The local certified repair shop rarely sees Kurzweil boards come in for warranty work or otherwise. I've found a high quality keyboard for life!
Music background: Part-time Pro Musician


love my 1300 dollar investment so far, kurzweil sp2x, great action, great sounds, ep's are good, piano's are alright not as good as alesis fusion,not the quality, strings are light compared to old korgs. A good low end keyboard that's pretty durable.Good controller as quoted by discmakers recording magazine.Power supply, someone at the door of my apt turned my keyboard setup into mush, with some kind of electronic device. Only one channel working. How did they do that? What do you have to pay to get a power cord,3000 and above. Power supply to easy to ruin a keyboard players night. Great keyboard for low budget line. Mark Allen Morris
Music background: played professionally for 0ver 16 years, played keyboards for 40 years and am composer, always writing and recording.

Kurzweil Sp4-8

I own 6 other keyboards, always impressed with the Kurzweil. After testing the Sp4-8, I had to have one. I use it on every gig!
Music background: Road musician for 44 years
See also: Electric Pianos, Kurzweil, Kurzweil Digital Pianos