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: 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
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

    FORTE 8
FORTE 7
FORTE SE

ARTIS 8
ARTIS 7
ARTIS SE

PC4
PC4-7
PC3A8
PC3A7
PC3A6
PC3K8
PC3K7
PC3K6
SP6
SP6-7
SP1

Keyboard Keybed¹ 88 FW
76 FW
88 FW

88 FW
76 SW
88 FW

88 FW
76 SW
88 FW
76 SW
61 SY
88 FW
76 SW
61 SW
88 FW

88 FW

Wooden End Caps No No No No No Yes Yes No No
UI 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 128 x 64 LCD 3 char LED
Categorized Programs Complete Complete Complete Complete Complete Partial Partial Complete Complete
Favorites/QA Entries 990 10 10 6 990 25,600 25,600 5 5
Surf-n-Select Sound Navigation Yes Yes No No Yes No No No No
Sound/Editing Polyphony 128 (KB3=0) 128 128 128 256 128 128 128 256
Flash Play™ 16 GB 2 GB No No 2 GB No No 2 GB No
Sample Memory 3.3 GB 188 MB No No 2 GB No 128 MB No No
Piano Samples² GD / JC7 / TS GD* / JC7* / TS ⋅GD* / TS ⋅GD* / TS ⋅GD* / JC7* / TS ⋅GD* / TS ⋅TS / GD* (sold separately) ⋅GD* / JC7* / TS GD*
String Resonance KSR ³ KSR ³ No No KSR No No KSR ³ Yes
Factory Programs 322 512 256 256 1000+ 1453 1074 256 16
Factory Setups/Multis 186 182 256 128 50+ 216 150 130 0
User Programs 3072 1024 256 256 4096 2560 2560 1024 5 (Favorites)
User Setups/Multis 3072 1024 256 256 4096 2560 2560 1024 5 (Favorites)
Setup/Multi Zones 16 8 4 4 16 16 16 4 4
General MIDI No No No No No Yes Yes No No
KORE 64®
⋅Programs
⋅Keympas/Samples
Some
Yes
Some
Yes
Some
Yes
Some
Yes
Some
Yes
Yes
Yes
Sold
Separately
Some
Yes
No
No
V.A.S.T. Editing Yes Yes via Editor software via Editor software Yes Yes Yes via Editor software No
KB3 Engine Yes Yes Yes Yes Yes Yes Yes Yes No
FM Engine Yes (v4) No No No Yes No No No No
Software Editor Free Free Free Free Free Free Free Free No
Effects FX Units 32 32 16 16 32 16 16 32 4
FX Editing Full Full Limited Limited Full Full Full Limited Limited
Master FX Comp + EQ
(dedicated knobs)
EQ
(dedicated knobs)
EQ
(dedicated knobs)
EQ
(dedicated knobs)
Comp + EQ Comp + EQ Comp + EQ No EQ
Compatibility PC3 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 Programs
(no samples)
No
K2** 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
(incl. K2 compat file)
No No
Sequencing/Arps Sequencer Yes Yes No No Yes Yes Yes No No
RIFFs 16 0 0 0 16 16 16 0 0
Arpeggiators 16 8 0 0 16 16 16 4 0
MIDI CC Step Sequencer 16 (v4) 0 0 0 16 0 0 0 0
Controllers Aftertouch Yes Yes No No Yes Yes Yes No No
Programmable Sliders 9 (+LED ladders) 9 9 4 9 9 9 0 0
Programmable Knobs 0 0 0 0 9 0 0 4 0
Programmable Buttons 10 11 6 2 10 10 10 1 0
CC Pedal inputs 2 1 1 1 2 2 2 1 1
Switch Pedal inputs 3 2 (dual jack) 2 (dual jack) 2 (dual jack) 2 3 3 2 (dual jack) 1
Half-Damper *** Yes (pianos) Yes (pianos) MIDI only MIDI only Yes (pianos) No No Yes (pianos) No
Ribbon input No No No No Yes Yes Yes No No
Breath Controller input No No No No No Yes Yes No No
I/O Analog Outputs Main + Aux Main Main Main Main + Aux Main + Aux Main + Aux Main Main
Analog Inputs 1/8″ w/ FX 1/8″ w/ FX 1/8″ 1/8″ (2) 1/4″ (1) 1/8″ w/ FX No No No (2) 1/4″
Digital Out No No No No No Yes Yes No No
Storage 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
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 – 3.4MB
Quick Start Guide (revD)
2020-9-4

PC4 Getting Started Guide Rev D – 428KB
Quick Start Guide (revD) – .epub format for e-readers and mobile devices​
2020-9-4

PC4 Musician’s Guide Rev F – 6.4MB
Primary owner’s manual (revF)
2020-9-4

PC4 Musician’s Guide Rev F – 7.2MB
Primary owner’s manual (revF) – .epub format for e-readers and mobile devices​
2020-9-4

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_Mac102 – 11.2MB
v1.02 of the PC4 desktop Controller software for the Mac
Requires the latest PC4 OS update (link above)
2020-07-22​

PC4_Controller_PC102 – 7.5MB
v1.02 of the PC4 desktop Controller software for the PC
Requires the latest PC4 OS update (link above)
2020-07-22​

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

PC4 iPad Editor (iOS) – 42.5 MB
Links to App Store to download
Requires the latest PC4 OS update (link above)
2020-07-20

SUPPORT

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Contact Distributor Support

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Authorized Repair Facilities

Locate a Kurzweil repair facility near you.

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The PC4 can be purchased through these online retailers: