PC3 Series Technology

128 hand-picked programs & dozens of professional quality FX Chains taken directly from our acclaimed PC3 Product Series.

SP4-8 Overview

Kurzweil's SP4-8 is the modern successor to our best selling SP88/X, which famously combined world-class Kurzweil sound quality with previously unheard of affordability and portability. The updated SP4-8 makes available to more players than ever the same sound set featured in our hugely successful PC3 line of professional keyboards, in an instrument that is slim, lightweight and extremely easy to use.

Good Things Come In Small Packages

Here at Kurzweil, we realize that many musicians have the need for a keyboard instrument that is both compact and lightweight. The SP4-8's enclosure is slender, elegant and easy to lift; once set up it leaves the smallest possible footprint, which means that you, not your keyboard, will be in the spotlight.

Up And Running In Record Time

With a user interface that's intelligently designed to make things as easy for you as possible, the SP4-8 provides the features that are most important, right where you'd want them. Create splits and layers with the touch of a button (up to 4 zones); select presets and setups from easy to access category and program buttons; quickly adjust effects parameters; everything is laid out so that you can be up and running and making music right out of the box.

No Compromises

While the SP4-8 is the most affordable keyboard that we currently offer, no compromises were made, no corners were cut, when it comes to its sounds. Featuring 128 hand-picked programs taken directly from our acclaimed PC3 line, the SP4-8 delivers the best of the best in every category of sound, with our famous Triple Strike Grand Piano, classic electric pianos and lush strings and orchestral instruments, along with top notch basses, guitars, winds, brass, percussion and drums. We even included some of our signature KB3 organs, with all KB3 parameters accessible via external MIDI control. Furthering the sonic pallet, the SP4 can also load programs created on our PC3 and PC3LE series keyboards*; additional sounds are also available for download on our website. Its 16-part multitimbral architecture makes the SP4-8 a powerful tool for writing and recording music in conjunction with an external sequencer or Desktop Audio Workstation.

(*within the limits of the SP4's DSP resources)

Icing On The Cake

In addition to utilizing programs from the PC3, the SP4-8 also features dozens of the PC3's professional quality effect chains. Everything from flawless concert hall reverbs and crisp delays to powerful distortion and amp simulation effects add another layer of depth and realism that can only be found in a Kurzweil. The most relevant effects parameters have been mapped to the SP's Timbre knob, so you can customize your sound without having to dive into menus or manuals.

All specifications subject to change without notice.

Spotlight Features

Kurzweil Product Comparison ChartSPS4-8 Stage PianoSP4-7 Stage PianoSP4 Series Desktop EditorKS-40A Compact 2-Way Self Powered MonitorskSetListKurzweil 3rd Party Devs



2018-03-17: RT @pianobloke: @KurzweilMusic SP6 doing great for last nights @sonjakristina gig @TivoliWimborne with @NormanBeaker #kurzweilartist #progr…

2018-03-16: Shot today, inside the #SynthExpo: https://t.co/tTMSmeCRjf

2018-03-16: Be a part of the #Kurzweil online community. Check out one of the longest standing resources of users at… https://t.co/1rwcd4W9F9

2018-03-13: #Kurzweil #Forte - Pad/Lead Improvisation - Salvatore Bazzarelli https://t.co/7eaWAH1tR1

2018-03-08: Come test drive the #Kurzweil #SP6 at the Austin #SynthExpo is in just one week: https://t.co/T4I7o8IcFK… https://t.co/AkpKdGMduk

2018-03-08: Listening Break: check out the #Kurzweil #SP6 EPs': https://t.co/wvXyCdqmpF Which is your fave?

2018-03-07: #Kurzweil user Salvatore Bazzarelli playing through the piano programs of his #Forte https://t.co/TI3C3FLzX4

2018-03-05: RT @ardensmusic: We stock the @KurzweilMusic digital piano cup1 in our Kingston location. Acoustic like but it's digital! https://t.co/wSp…

2018-03-02: Check out the new #Kurzweil #SP6 group on Facebook: https://t.co/tBIbRZzIQN https://t.co/mqVE7hA5SC

2018-03-01: #Kurzweil #Forte Demo - Bruno Mars Uptown Funk https://t.co/4q6VEA8tpB

2018-02-28: Beautiful orchestral piece on a #Kurzweil #ForteSE by Arkadiusz Wilczek. https://t.co/sMGwOwWs9m Find out more abo… https://t.co/Ku3k3DAB6R

2018-02-27: #Kurzweil artist Nick Steed @pianobloke and his brand new Kurzweil #SP6 ready for his next tour!… https://t.co/Kqe6jIlllo

2018-02-26: Calling #Kurzweil #SP6 users to join our SP6 Beta group. Receive new updates before they are available to the publi… https://t.co/O8JqNnG3lS

2018-02-25: RT @lucadigennaro: One of my favorite moments from our third album "4" on a @KurzweilMusic PC3K8! #soulsecret #4 #four #progressivemetal #p…

2018-02-23: #KURZWEIL #SP6 - Stage Piano Jamming by Synthcloud ( Part 3 ) https://t.co/PbwhvSG2GD The #SP6 is shipping in many… https://t.co/BsI7oX66qE

2018-02-22: #Kurzweil artist Frank Lucas with The Cyberiam. https://t.co/lO3UDDbf2n Learn more about the #Kurzweil #Forte https://t.co/3aTNlnqS5B

2018-02-22: RT @talcahuano74: Kurzweil MPG100 @KurzweilMusic #pianos #music #keyboard #kurzweil #talcahuano74 #talcahuano #musica #buenosaires . Vení y…

2018-02-21: See all new pics of the soon to be released #Kurzweil #SP1 - https://t.co/HHW0p2yFOm https://t.co/hzgnseticv

2018-02-21: Check out Chris Martirano's #Kurzweil #SP6 product demo at #NAMM2018 https://t.co/f8V7FXiwKD

2018-02-21: Check out Chris Martirano's #Kurzweil #SP1 product demo at #NAMM2018 https://t.co/PI4Bl3M6hg