OVERVIEW

The Kurzweil PC4 – Performance Controller.
Explore::Create::Perform

SOUNDS

256 Voices of V.A.S.T. Polyphony!

More polyphony from our acclaimed V.A.S.T. engine than any product in Kurzweil history!

2 Gigabytes of Factory Sounds!

Over 1000 hand-selected factory presets organized into 13 Categories of Programs (Piano, E. Piano, Clav, Organ, Strings, Pad, Synth, Brass/Wind, Ensemble, Hybrid, Guitar/Bass, Drum/Perc, Misc) and featuring our optimized German 9 ft. and vintage Japanese 7 ft. concert grand pianos.

Patented FlashPlay® Technology

Flash-Play® provides the PC4 with a staggering amount of horse-power; 2 GB sample content with zero-loading time, and ultrafast performance.

2 Gigabytes User Sample Memory

Load up to 2 GB of your own custom samples into non-volatile flash memory. Supported sample formats: .WAV, .AIF (up to 16 bit / 96kHz) and Kurzweil formats (.P3K, .KRZ, .K25, .K26).

V.A.S.T. Editing

Deep native editing? Look no further. The PC4 grants full access to Kurzweil’s legendary Variable Architecture Synthesis Technology directly from the front panel. With 32-layers per program, each offering its own signal path and a host of modular DSP tools, the PC4 offers a wealth of sound creation and modification that is truly immense.

6-Operator FM Engine

6 Operator FM Engine with the ability to load original FM SysEx files.

CC Sequencers

Add sonic animation to your sounds via 16 simultaneous MIDI CC Step Sequencers for modulation sequencing.

KB3 ToneReal™ Organs

Modeled after classic organs. A full compliment of tonewheel controls are immediately accessible including 9 realistic drawbars, rotary speed, chorus/vibrato, brake, percussion and more.

Powerful FX Engine

Award-winning Reverbs, Delays, Choruses, Flangers, Phasers, Distortions, Rotary Amplifiers, Compressors and more – all fully editable from the user-interface. The PC4 also offers a global Master FX section featuring 3-band EQ and Compression.

K.S.R. – Kurzweil String Resonance

Piano string resonance modeling for enhanced acoustic piano performance!

PERFORMANCE

88-Note Hammer-Action Keyboard

Every sound within the PC4 is perfectly matched to its 88-note fully-weighted hammer-action keyboard with aftertouch.

16-Zone Multi Controller Mode

Construct massive sonic combinations via Kurzweil’s renowned Multi mode (aka Setup mode) offering 16 zones of unparalleled MIDI controller capabilities.

16-Track Sequencer

The PC4 features a 16-track internal sequencer to record/edit/mix/produce your own tracks – all in the box. Import MIDI (.mid) files as well as Kurzweil PC3-family songs.

16 Simultaneous RIFF Generators

Trigger and manipulate up to 16 simultaneous MIDI sequences on the fly. Select from an internal library of patterns or record/import your own!

16 Simultaneous Note Arpeggiators

Looking for a pulse? Activate up to 16 independent Arps (1 per program, 16 per Multi) and discover the new ‘Step Sequencer’ environment!

Live Audio Input w/ FX

Plug in and jam along with your favorite music player via 1/4″ pair and/or 1/8″ (3.5mm) audio input. The input bus sports its own dedicated real-time FX. Sweeten your backing tracks for live performance and internally mix the signal with the PC4’s own output.

CONTROLS

Front Panel Master Transport Controls

Use the buttons in the TRANSPORT section to control recording and playback of the on-board 16-track sequencer.

36 Programmable Physical Controllers

9 Sliders, 9 Knobs, 10 Switches, 2 Wheels, 2 Switch Pedal* Inputs (which support half-damper for pianos), 2 Continuous Control Pedal Inputs, Aftertouch and Ribbon controller input**.

*1 sustain/switch pedal is included; half-damper pedal sold separately
**ribbon controller sold separately.

Easy Access Transpose Controls

Dedicated -/+ transpose controls conveniently located right above the LED backlit pitch/modulation wheels (LED lights can be disabled).

USER INTERFACE

Widescreen Color Display

Navigate the PC4 with a 4.3” 480×272 widescreen color LCD display.

All specifications subject to change without notice.

Categorized Sound Selection

Easy Category and Program/Multi selection featuring customizable category defaults.

SPECS

All specifications subject to change without notice.

Keyboard:RPHA: Real Piano Hammer Action / 88-note, fully-weighted hammer-action with velocity and aftertouch sensitive adjustable keys
Display:480 x 272 pixel high resolution color LCD with adjustable brightness
Polyphony:256 Voice Polyphony, dynamically allocated
Multitimbral:16 parts (one per MIDI channel)
Architecture:Dynamic VAST: Powerful synthesis engine, with user programmable DSP algs and routing. More DSP power than even our K Series instruments.

6-Operator FM Engine

VA1 Inside: anti-aliasing, power-shaped oscillators and DSP processing from Kurzweil’s VA1 concept synth, capable of delivering authentic analog emulations as well as incredibly complex new sounds.

Cascade Mode: lets the user route one layer through the DSP of any other layer within a program – up to 32 consecutive layers deep!

Sample Flash Memory:2 GB of re-loadable, non-volatile, user flash memory
Factory Programs:1000+
User Programs:4096
Factory Multis:50+ – featuring up to 16 independent zones
User Multis:4096
General MIDI:No
Kurzweil String Resonance:Yes
Master EQ/Compressor Section:Yes
Effects:• Over 1000 complex effect chains, incorporated into programs featuring our award winning effects – reverbs, delays, chorus, flange, phaser, EQs, distortions, rotary speaker simulators, compressors, and more
• 32 total FX units
Controllers:1 pitch wheel
1 modulation wheel
9 front panel sliders
9 Knobs
9 switches (assignable/zone mutes/KB3 control)
1 variation switch
Tempo Controls w/ tap tempo
2 transpose switches
Arp Controls
Transport Controls
*2 switch pedal inputs each supporting single switch pedal or single half damper pedal (1 switch/sustain pedal is included; half-damper pedals sold separately)
2 continuous control pedal inputs
monopressure (aftertouch)
Ribbon input (ribbon controller sold separately)
Sequencer:16 Tracks; 960 PPQ resolution. Song editing functions include both event and track-based tools like quantize, swing, remap, controller scaling and more.
MIDI CC Step Sequencers:16 simultaneous
RIFFs:16-per Multi
Note Arpeggiators:1-per Program, 16-per Multi
Analog Outputs:• Four (2 pairs) 1/4″ balanced TRS analog (32-bit DACs)
Automatic mono switching on main outs
• +21dBu maximum output
• 50Ω balanced source impedance
Audio Inputs:Two 1/4″ inputs
One stereo 1/8″ input (each with FX) for connecting your favorite MP3 player or other audio source for accompaniment playback
Headphones:• 1 back panel 1/4″ headphone output
• 130mW into 32 ohm headphones
MIDI:In, Out
USB:• Two USB ports (one A port / one B port)
• Complete MIDI functionality over USB
• User program/multi file backup via USB drive
• Operating System updates via USB drive
Software Editors:External editors for Mac OS X, Windows PC and iOS* devices
(*coming soon)
FREE OS Updates:OS updates via USB drive
Included Accessories:Power cable, Switch pedal, USB cable
Height:6.5″ (16.51 cm)
Depth:14.75″ (37.46 cm)
Length:50″ (127 cm)
Weight:28.7 lb (13.01 kg)
Power:External 15VDC 2.5A Power Supply

IMAGES

VIDEOS

PC4 Introduction at SuperBooth Berlin
Courtesy of Sound Service TV

Kurzweil PC4 – Synth Pad’s
Musikmesse 2019 – courtesy of E-MUZYK

Kurzweil PC4 demo Grand Piano & E-Piano sound
Musikmesse 2019 – courtesy of E-MUZYK

FAQs

Product Comparisons

Question:
What are the primary feature comparisons between the current Pro keyboards?

Answer:

FORTE 8

FORTE 7

FORTE SEARTIS 8

ARTIS 7

ARTIS SEPC4PC3A8
PC3A7
PC3A6
PC3K8

PC3K7
PC3K6

PC3LE8
PC3LE7
PC3LE6
SP6SP1SPS4- 8

SP4-8

SP4-7

Keybed ¹88 FW
76 FW
88 FW88 FW
76 SW
88 FW

88 FW88 FW
76 SW
61 SY
88 FW
76 SW
61 SY
88 FW
76 SW
61 SW
88 FW88 FW88 FW
88 FW
76 SW
Polyphony128

KB3 is polyphony free
1281281282561281286412825664
Display480 x 272
color LCD
240 x 64
LCD
240 x 64
LCD
2×20 char
LCD
480 x 272
color LCD
240 x 64
LCD
240 x 64
LCD
240 x 64
LCD
128 x 64
LCD
3 char LED1×16 char
LCD
Wooden
End Caps
NoNoNoNoNoYesYesNoNoNoNo
Flash Play™16 GB2 GBNoNo2 GBNoNoNo2 GBNoNo
Sample
Memory
3.3 GB188 MBNoNo2 GBNo128 MBNoNoNoNo
Piano ²
Samples
⋅GD
⋅JC7
⋅TS
⋅GD*
⋅JC7*
⋅TS
⋅GD*
⋅TS
⋅GD*
⋅TS
⋅GD*
⋅JC7*
⋅TS
⋅GD*
⋅TS
⋅TS
⋅GD* (sold separately)
TS⋅GD*
⋅JC7*
⋅TS
GD*TS
String
Resonance
KSR ³KSR ³NoNoYesNoNoNoKSR ³YesNo
Factory
Programs
3225122562561000+14531074106125616128
Factory Setups/Multis18618225612850+216150256130064
User
Programs
30721024256256409625602560256010245 (Favorites)64
User
Setups/Multis
30721024256256409625602560256010245 (Favorites)64
Setup/Multi
Zones
1684416161616444
General MIDINoNoNoNoNoYesYesYesNoNoNo
KORE 64®
⋅Programs
⋅Kmap/Smps
Some
Yes
Some
Yes
Some
Yes
Some
Yes
Some
Yes
Yes
Yes
Sold SeparatelyNo
No
Some
Yes
No
Yes
No
No
V.A.S.T.
Editing
YesYesvia Editor softwarevia Editor softwareYesYesYesYesvia Editor softwareNovia Editor software
FM EngineYes (v4)NoNoNoYesNoNoNoNoNoNo
FX Units323216163216161032410
FX EditingFullFullLimitedLimitedFullFullFullLimitedLimitedLimitedLimited
Master FXComp + EQ
(dedicated knobs)
EQ
(dedicated knobs)
EQ
(dedicated knobs)
EQ
(dedicated knobs)
Comp + EQComp + EQComp + EQNoNoEQNo
Software
Editor
FreeFreeFreeFreeFreeFreeFreeFor saleFreeNoFor sale
PC3
Compat.
Most objects
(no edited ROM samples)
Most objects
(no edited ROM samples)
Most objects (no samples)Most objects (no samples)Most objects
(no edited ROM samples)
All objects
(no samples)
All objectsMost objects (no samples)Most Programs
(no samples)
NoMost Programs (no samples)
Legacy K2
Compat. **
Programs
Keymaps
Samples
(no compat file)
Programs
Keymaps
Samples
(no compat file)
NoNoPrograms
Keymaps
Samples
(no compat file)
Setups
Programs
Keymaps
(no compat file)
Setups
Programs
Keymaps
Samples
(includes K2 compat file)
Setups
Programs
Keymaps
(no compat file)
NoNoNo
Categorized ProgramsCompleteCompleteCompleteCompleteCompletePartialPartialCompleteCompleteCompleteComplete
Surf-n-Select Sound NavigationYesYesNoNoYesNoNoNoNoNoNo
Favorites /
QA Entries
9901010699025,60025,60025,60055No
SequencerYesYesNoNoYesYesYesYesNoNoNo
RIFFs1600016161616000
Arpeggiators1680016161616400
MIDI CC
Step Sequencer
16 (v4)00016000000
External StorageUSB-to-PC
USB Drive
USB-to-PC
USB Drive
USB-to-PC
USB Drive
USB-to-PC
USB Drive
USB-to-PC
USB Drive
USB-to-PC
USB Drive
USB-to-PC
USB Drive
USB-to-PC
USB Drive
USB-to-PC
USB Drive
NoUSB-to-PC
Analog
Outputs
Main + AuxMainMainMainMain + AuxMain + AuxMain + AuxMainMainMainMain
Analog
Inputs
(MP3 input)
1/8″ with FX1/8″ with FX1/8″1/8″(2) 1/4″
1/8″
with FX
NoNoNoNo(2) 1/4″No
Digital OutNoNoNoNoNoYes
(with sync)
Yes
(with sync)
Yes
(no sync)
NoNoNo
AftertouchYesYesNoNoYesYesYesYesNoNoNo
Programmable Sliders9 (+LED ladders)9949990000
Programmable Knobs00009005401
Programmable Buttons1011621010107100
CC Pedal inputs21112221111
Switch Pedal inputs32 (dual jack)2 (dual jack)2 (dual jack)23322 (dual jack)11 (dual jack)
Half-Damper ***Yes (pianos)Yes (pianos)MIDI onlyMIDI onlyYes (pianos)NoNoNoYes (pianos)NoNo
Drum Pads00000008000
Ribbon inputNoNoNoNoYesYesYesNoNoNoNo
Breath Controller inputNoNoNoNoNoYesYesNoNoNoNo

Notes:

¹ Keyboard Mechanisms: FW = fully-weighted hammer-action / SW = semi-weighted / SY = synth action.

² GD = German D, JC7 = Japanese C7, TS = Triple Strike.

³ KSR = “Kurzweil String Resonance”.

* These pianos are an optimized version of the Forte® Grand pianos, derived from the same quality content but using less samples.

** Cannot load K2 Series KB3 or Triple Mode Programs. Edited ROM sample headers as well as some DSP algorithms and tools cannot be converted. Please see owner’s manuals for details.

*** Half-damper pedal sold separately.

DOWNLOADS

User Manuals

PC4 Getting Started Guide – 2.1 MB​
Quick Start Guide (revC)
2019-11-12

PC4 Getting Started Guide – E-Book – 421.8 KB​
Quick Start Guide (revC) – .epub format for e-readers and mobile devices​
2019-11-12

PC4 Musician’s Guide – 5.1 MB​
Primary owner’s manual (revC)
2019-11-12

PC4 Musician’s Guide – E-Book – 7.0 MB​
Primary owner’s manual (revC) – .epub format for e-readers and mobile devices​
2019-11-12

OS Updates

PC4 v1.06 Update – 9.2 MB
Contains: OS v4.18.32782, Obj 1.00.21, Installation Instructions, Release Notes
2019-11-12

SUPPORT

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Authorized Repair Facilities

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