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Multi-Function Keyboards

Kurzweil PC4vsKurzweil SP8

Summary

Kurzweil PC4 and Kurzweil SP8: 2 Kurzweil multi-function keyboards compared side by side. They differ on 6 of 14 compared specifications.

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2 items

Kurzweil

PC4
CurrentView details →

Kurzweil

SP8
General
ManufacturerKurzweilKurzweil
StatusCurrentCurrent
Released20192026
Keyboard
Keys8888
Key actionHammer-actionHammer-action
AftertouchMonophonicNone
Keybed88-note RPHA (Real Piano Hammer Action), fully weighted, velocity and aftertouch sensitive88-note fully weighted four-zone graded hammer action (H1 Ivory GT), velocity sensitive
Sounds
SectionsPiano, Electric piano, Organ, Synth, Sample playbackPiano, Electric piano, Organ, Synth, Sample playback
DrawbarsPhysicalNone
Sound engineDynamic VAST: a programmable synthesis engine where each layer is a chain of DSP blocks you can rewire, with a 6-operator FM engine and the VA1 virtual-analogue oscillators alongside it, plus the KB3 tonewheel organ engine and gigabytes of factory samples. 2 GB of factory samples plus 2 GB of user flash.VAST with Flash-Play: 2 GB of factory samples that load instantly, including the German D and Triple Strike pianos and tine electric pianos
Organ modelsKB3 tonewheel modellingKB3 tonewheel modelling
Polyphony256 notes, dynamically allocated256 notes, dynamically allocated
Connections
Outputs1/4-inch balanced, Headphones1/4-inch balanced, Headphones
MIDI portsDIN in, DIN out, USBDIN in, DIN out, USB
Pedal inputsSustain, ExpressionSustain, Expression
Features
FeaturesDynamic VAST with user-programmable DSP, Cascade Mode, up to 32 layers deep, 6-operator FM engine, VA1 virtual-analogue oscillators, KB3 tonewheel organ with nine sliders as drawbars, 1,000+ factory programs, 4,096 user, 16-part multitimbral, 32 effect unitsFlash-Play, no loading time, 2 GB factory samples, 1,000 factory programs, 200+ multis, Loads VAST programs from older Kurzweils, KB3 organ engine, Graded hammer action

Key differences

  • Drawbars: PC4 – Physical SP8 – None
  • Released: PC4 – 2019 SP8 – 2026
  • Aftertouch: PC4 – Monophonic SP8 – None
  • Keybed: PC4 – 88-note RPHA (Real Piano Hammer Action), fully weighted, velocity and aftertouch sensitive SP8 – 88-note fully weighted four-zone graded hammer action (H1 Ivory GT), velocity sensitive
  • Sound engine: PC4 – Dynamic VAST: a programmable synthesis engine where each layer is a chain of DSP blocks you can rewire, with a 6-operator FM engine and the VA1 virtual-analogue oscillators alongside it, plus the KB3 tonewheel organ engine and gigabytes of factory samples. 2 GB of factory samples plus 2 GB of user flash. SP8 – VAST with Flash-Play: 2 GB of factory samples that load instantly, including the German D and Triple Strike pianos and tine electric pianos

Both are the same on keys (88), key action (Hammer-action) and sections (Piano, Electric piano, Organ, Synth, Sample playback).