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 and featuring our optimized German 9 ft. and vintage Japanese 7 ft. concert grand pianos (with “KSR” – Kurzweil String Resonance). Also included are a wide selection of tailored sounds from the acclaimed Forte® (EP, Clav, Celeste, Crotales, Harpsichord), as well as PC3 Series and KORE 64™ expansions – all handcrafted to deliver unprecedented expressiveness with an obsessive attention to detail.

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.

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: 51.25″ (130.18 cm)
Weight: 28.7 lb (13.01 kg)
Power: External 15VDC 2.5A Power Supply

IMAGES

AUDIO


Song Demos



FM



Piano



E Piano



Clav



Organ



Strings



Pad



Synth



Synth Bass



Synth Lead



Brass/Wind



Ensemble



Hybrid



Guitar/Bass



Drum/Perc



Misc


VIDEOS

FM Synthesis on the PC4
Courtesy of Weisersound

PC4 FM Engine Demo
Courtesy of Barb & Co

PC4 FM Teaser
Courtesy of Weisersound

PC4 Preset Demo
Featuring Jim Alfredson
Courtesy of Weisersound

PC4 Review
Courtesy of Better Music

PC4 Introduction
SuperBooth Berlin
Courtesy of Sound Service TV

PC4 Synth Pads
Musikmesse 2019
Courtesy of E-MUZYK

PC4 Grand Piano & E-Piano
Musikmesse 2019
Courtesy of E-MUZYK

REVIEWS

SOS March 2020 Review

“Kurzweil’s PC4 is a solid all-rounder with hidden depths…” SOS March 2020

FAQs

Product Comparisons

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

Answer:

FORTE 8

FORTE 7

FORTE SE ARTIS 8

ARTIS 7

ARTIS SE PC4 PC3A8
PC3A7
PC3A6
PC3K8

PC3K7
PC3K6

PC3LE8
PC3LE7
PC3LE6
SP6 SP1 SPS4- 8

SP4-8

SP4-7

Keybed ¹ 88 FW
76 FW
88 FW 88 FW
76 SW
88 FW

88 FW 88 FW
76 SW
61 SY
88 FW
76 SW
61 SY
88 FW
76 SW
61 SW
88 FW 88 FW 88 FW
88 FW
76 SW
Polyphony 128

KB3 is polyphony free
128 128 128 256 128 128 64 128 256 64
Display 480 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 LED 1×16 char
LCD
Wooden
End Caps
No No No No No Yes Yes No No No No
Flash Play™ 16 GB 2 GB No No 2 GB No No No 2 GB No No
Sample
Memory
3.3 GB 188 MB No No 2 GB No 128 MB No No No No
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 ³ KSR ³ No No Yes No No No KSR ³ Yes No
Factory
Programs
322 512 256 256 1000+ 1453 1074 1061 256 16 128
Factory Setups/Multis 186 182 256 128 50+ 216 150 256 130 0 64
User
Programs
3072 1024 256 256 4096 2560 2560 2560 1024 5 (Favorites) 64
User
Setups/Multis
3072 1024 256 256 4096 2560 2560 2560 1024 5 (Favorites) 64
Setup/Multi
Zones
16 8 4 4 16 16 16 16 4 4 4
General MIDI No No No No No Yes Yes Yes No No No
KORE 64®
⋅Programs
⋅Kmap/Smps
Some
Yes
Some
Yes
Some
Yes
Some
Yes
Some
Yes
Yes
Yes
Sold Separately No
No
Some
Yes
No
Yes
No
No
V.A.S.T.
Editing
Yes Yes via Editor software via Editor software Yes Yes Yes Yes via Editor software No via Editor software
FM Engine Yes (v4) No No No Yes No No No No No No
FX Units 32 32 16 16 32 16 16 10 32 4 10
FX Editing Full Full Limited Limited Full Full Full Limited Limited Limited Limited
Master FX Comp + EQ
(dedicated knobs)
EQ
(dedicated knobs)
EQ
(dedicated knobs)
EQ
(dedicated knobs)
Comp + EQ Comp + EQ Comp + EQ No No EQ No
Software
Editor
Free Free Free Free Free Free Free For sale Free No For 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 objects Most objects (no samples) Most Programs
(no samples)
No Most Programs (no samples)
Legacy K2
Compat. **
Programs
Keymaps
Samples
(no compat file)
Programs
Keymaps
Samples
(no compat file)
No No Programs
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)
No No No
Categorized Programs Complete Complete Complete Complete Complete Partial Partial Complete Complete Complete Complete
Surf-n-Select Sound Navigation Yes Yes No No Yes No No No No No No
Favorites /
QA Entries
990 10 10 6 990 25,600 25,600 25,600 5 5 No
Sequencer Yes Yes No No Yes Yes Yes Yes No No No
RIFFs 16 0 0 0 16 16 16 16 0 0 0
Arpeggiators 16 8 0 0 16 16 16 16 4 0 0
MIDI CC
Step Sequencer
16 (v4) 0 0 0 16 0 0 0 0 0 0
External Storage 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
USB-to-PC
USB Drive
No USB-to-PC
Analog
Outputs
Main + Aux Main Main Main Main + Aux Main + Aux Main + Aux Main Main Main Main
Analog
Inputs
(MP3 input)
1/8″ with FX 1/8″ with FX 1/8″ 1/8″ (2) 1/4″
1/8″
with FX
No No No No (2) 1/4″ No
Digital Out No No No No No Yes
(with sync)
Yes
(with sync)
Yes
(no sync)
No No No
Aftertouch Yes Yes No No Yes Yes Yes Yes No No No
Programmable Sliders 9 (+LED ladders) 9 9 4 9 9 9 0 0 0 0
Programmable Knobs 0 0 0 0 9 0 0 5 4 0 1
Programmable Buttons 10 11 6 2 10 10 10 7 1 0 0
CC Pedal inputs 2 1 1 1 2 2 2 1 1 1 1
Switch Pedal inputs 3 2 (dual jack) 2 (dual jack) 2 (dual jack) 2 3 3 2 2 (dual jack) 1 1 (dual jack)
Half-Damper *** Yes (pianos) Yes (pianos) MIDI only MIDI only Yes (pianos) No No No Yes (pianos) No No
Drum Pads 0 0 0 0 0 0 0 8 0 0 0
Ribbon input No No No No Yes Yes Yes No No No No
Breath Controller input No No No No No Yes Yes No No No No

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 V1.08 Update – 9.1MB
Contains: OS v4.26.33020, Obj 1.00.21, Installation Instructions, Release Notes
2020-3-20

Software Editors

PC4_SoundEditor_Mac100 – 25MB
v1.00 of the PC4 desktop editing software for the Mac
Requires the latest PC4 OS update (link above)
2020-04-10​

PC4_SoundEditor_PC100– 7MB
v1.00 of the PC4 desktop editing software for the PC
Requires the latest PC4 OS update (link above)
2020-04-10​

PC4_Controller_Mac100– 11MB
v1.00 of the PC4 desktop Controller software for the Mac
Requires the latest PC4 OS update (link above)
2020-05-28​

PC4_Controller_PC100– 7MB
v1.00 of the PC4 desktop Controller software for the PC
Requires the latest PC4 OS update (link above)
2020-05-28​

PC4_PlugSE_Mac_(AU) – 8.6MB
v1.00 of the PC4 PlugSE software for AU on the Mac
Requires the latest PC4 OS update (link above)
2020-06-9

PC4_PlugSE_Mac_(VST) – 8.6MB
v1.00 of the PC4 PlugSE software for VST on the Mac
Requires the latest PC4 OS update (link above)
2020-06-9

PC4_PlugSE_PC_(VST) – 7.6MB
v1.00 of the PC4 PlugSE software for VST on the PC
Requires the latest PC4 OS update (link above)
2020-06-9

SUPPORT

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Product Registration

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Contact Distributor Support

Do you have questions about the use or application of your Kurzweil product?

Contact Service/Repair

Needing repair? Need to locate a local authorized service center? obtain parts?

Authorized Repair Facilities

Locate a Kurzweil repair facility near you.

BUY NOW

The PC4 can be purchased through these online retailers: