SPS4-8 Features & Specs

All specifications subject to change without notice.

Keyboard: 88-note, graded-hammer action (LK40GH)
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 ribbon, modulation slider, 1 front panel knob, 1 switch-pedal input (supports optional, dual-pedal), 1 continuous control pedal input
Analog Outputs: Two 1/4" balanced TRS analog (24-bit DACs)
Analog Inputs: Two 1/4" balanced TRS inputs; mix into speaker system
Sound System:

Stereo 19W/channel @ <1% THD+N; 48W maximum total power

Two 4 x 6" woofers (in ported enclosure)

Two 1” neodynium magnet dome tweeters

Headphones: 2 front-mounted 1/4" outputs
MIDI: In, Out
USB:

Complete MIDI functionality over USB

User program/setup file transfer to/from PC/Mac

Operating System updates from PC/Mac

FREE OS Updates: OS updates over USB
FREE Sounds: The SP4 can also load programs created on our PC3 and PC3LE series keyboards (*within the limits of the SP4's DSP resources). Additional sounds are also available for download on our website (loaded over USB)
Included Accessories: Power cable, Switch pedal, USB cable, (4) self adhesive feet
Height: (4.5") (11.43cm)
Depth: (14.5") (36.83cm)
Length: (51.75") (131.45)
Weight: (41 lb.) (18.6 kg)
Power: 90-250V free voltage external power supply (19VDC, 3.42A)

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News

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2018-08-16: RT @EuroUnitHR: #white or #black? #small or #big? Everything from @KurzweilMusic is here https://t.co/uLuXPdG5VV #piano #digitalpiano #keyb…

2018-08-13: #Kurzweil #Forte owners - need a fast way to cook up a .wav/.aif sample into a playable program?… https://t.co/jZxVuT1oFr

2018-08-13: RT @edrecordstudio: Today recording: Nicola Gelo (composer) & Roberto Corlianò (pianist) @edrecordstudio https://t.co/Flf8jF28pi

2018-08-09: #Kurzweil #SP6 users - learn to select programs remotely via MIDI: https://t.co/6EsTuCKbDA https://t.co/FesRA2ghUB

2018-08-09: RT @MusicInsNews: Distributor @soundtechnology says that following the success of the @KurzweilMusic SP6 Stage Piano, the SP1, now shipping…

2018-08-06: RT @EuroUnitHR: From our @KurzweilMusic #offer here is SP6 #stagepiano --> https://t.co/J0eYYJLKQy 34th Annual #TEC Award nominee for music…

2018-07-27: #Kurzweil is back in Spain! Kurzweil vuelve a España! @musicopolix_com https://t.co/Ids4lqtRTe https://t.co/bgZxCGsnSS

2018-07-25: #Kurzweil #Artis owners - learn how to adjust the pitch bend range per multi zone - https://t.co/TsZkBGYGGV https://t.co/rbAWILV1CY

2018-07-25: Interesting comparison between the #Kurzweil #Forte and #SP6 by https://t.co/S0uzV1X6ql https://t.co/9rjB6KvE4v

2018-07-19: Check out the new #Kurzweil KST300A keyboard amp https://t.co/cUM3gK6kCh https://t.co/DnEbaUDbTz

2018-07-18: Congratulations to all the people involved in such an amazing production for the 13 #EmmyNominations. And specially… https://t.co/0PNAGWHX6F

2018-07-16: #PC3K users, watch this! #comfortablynumb #keyboards #guitars #pinkfloyd https://t.co/hetbI3HJOH

2018-07-13: Check out #Kurzweil #Forte owner Jim Alfredson @b3groover playing a Forte at the Montreal Jazz Festival… https://t.co/89U6UeS9a3

2018-07-12: #Kurzweil #SP6 owners - learn the ropes of making Layered Multis: https://t.co/3XXTVmJFI3 https://t.co/jZoUM7v2gZ

2018-07-12: #TBT #Kurzweil K2500 Series Training Video (Part 1) - ft Jordan Rudess https://t.co/dgfSQE6tL9

2018-07-11: RT @CosmoMusic: DEAL OF THE WEEK: Save $170 on a @KurzweilMusic KP100 Portable Arranger Keyboard https://t.co/wGZUhQT2qm https://t.co/W0lh2…

2018-07-10: Moray Macdonald (@morayonkeys) Rig rundown - Pink Floyd tribute Crazy Diamond featuring the #Kurzweil #PC3K8 - https://t.co/L8xEkfnOs0

2018-07-09: #Kurzweil #Forte owners - don't be so sensitive : ) learn how to disable touch sensitivity per program layer - grea… https://t.co/vn1Y8q9JSG

2018-07-09: #Kurzweil #CUP310/320 System update 1.06 now available: https://t.co/Ceo2nbzFyE https://t.co/C9EPvY4tEx

2018-07-09: #Kurzweil #Forte owner Jim Alfredson (@b3groover) at the Montreal Jazz Festival (@MtlJazzFestival)… https://t.co/vxJvuBcdxN