Cantorum Duo Plus

Cantorum Duo Plus is two-manual portable organ, powered by Viscount’s patented Physis Plus technology. It is equipped with 27 organ stops and 3 orchestral voices with built-in amplification that guarantees unique sound quality. These features combined with contemporary aesthetics make it the perfect portable solution, without sacrificing the quality that sets Viscount products apart.

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Cantorum Duo Plus is a completely portable organ equipped with 2 manuals, 27 organ stops and 3 orchestral voices.

It is powered by Viscount patented Physis Plus technology, the natural and powerful evolution of well-known Physis (Physical modeling) technology, capable of faithfully reproducing the authentic sound and performance of a traditional pipe organ.

The organist can choose between three different pipe sets (Baroque, Romantic, Symphonic) and create his/her own preferred audio environment through acoustic modeling.

The organ settings are easy to access, modify and store through the enhanced graphic display on the front panel; the free Editor allows to edit, adjust and design the Cantorum Duo Plus providing many functions for organ voicing, routing and customizations.

A wide range of optional, as stands, bench, pedalboard, pedals and powerful external amplifiers is available to increase the organ flexibility.



Technology Physis Plus Physical Modelling
Manuals 2
Total Stop Controls 27 Organ Stops + 3 Orchestral Voices
Pedal 5
MAN I 10
Alternative Organ Voices 5 for each tab
Alternative Orchestral Voices More than 30 overall
Couplers 3
Memory Locations 1000 (000 - 999)
Piston Sequencer Two thumb pistons
Pipe Sets Baroque, Romantic, Symphonic


Height (excluding music desk) cm 19 - 7.5"
Height (including music desk) cm 43 - 16.9"
Width cm 90 - 35.4"
Depth (excluding pedal board) cm 48 - 18.9"
Weight 20kg - 44,09Lbs


Stop Controls Tilt Tabs
Laminated Wood Light oak


Optionals Transport Bag
Standard Stand
Large Stand
MIDI pedalboard
Expression Pedals (2 unit for Midi Pedalboard)
Volume Pedal
Sustain Pedal


Display Dimensions 128 x 64 dots Graphic with Backlight
Stops Voicing Available
Divisional Volume Available
Tremulant 2 independent for each division
Reverb 8 presets
Ensemble Effect Adjustable
Temperaments 19 Historical + 4 user programmable
Short Octave Available
Keyboards Inversion Available
Internal Routing Programmable for each stop
Internal Equalizer 5 Band Graphic EQ
MIDI Sequencer Available
File Manager Load, Save, Backup, Restore
Lock Organ With Password


Wooden Desk Metal and Laminated


Standard Keyboards Available
Plastic Black Keyboard Covered with Real Wood Optional


32 note Straight Concave or Flat, Radiating Concave Optional
30 note Straight Concave or Flat, Radiating Concave Optional


MIDI In - MIDI Out Available
Aux In, Aux Out Available
Headphones Out Available
USB A-Type (USB pen) B-Type (Connection to Physis Editor)
Expression Pedal In Available
Crescendo Pedal In Available
Sustain Pedal In Available


Channels 4 programmable
Channel Assign Voice, General, Reverb
Equalizer 5 Band Graphic EQ for each channel
Routing Programmable for each stop
Volume Adjustable for each channel


True Stereo Reverb 8 new unique presets
Additional Parameters Dry/Wet
Early reflections
Decay Time
Left/Right Assignable to external outputs


Internal Amplifiers 2 channels Class-D amplifier 2x40W
Internal Speakers 2 tweeter | 2x5” woofer


Pipe Set Pipe sets management
Tuning Instrument’s tuning parameters
Combinations Management of the Combinations sets
Voicing Alternative voices and sound generations parameters
Setup Instrument general settings
MIDI MIDI settings
Backup / Restore Save / Load configurations / Factory Reset




The rocker tabs, pistons and display provide effective control over the entire instrument.

The thumb pistons and rocker tabs that are used to control the organ’s voices have been ergonomically designed to respond quickly and easily to the demands of the player. The display is conveniently located on the right of the instrument with its own set of easy-to-use controls. There are six pistons available for the memory locations which are carefully positioned on the instrument to allow a wide range of possibilities and personalisation, all at your fingertips.



High-Quality Tracker Action Keyboards

Cantorum Duo Plus is equipped with 2 x 61 notes “Tracker Action” keyboards. We understand the importance of having the right feel to the organ keyboard so have taken the utmost care in using the very best components. The feel of the keys conveys the touch of a true Tracker Action. When using MIDI and Orchestral Voices, the keys instantly become touch sensitive.



Physis Plus Technology for a real organ experience

Cantorum Duo Plus is equipped with Physis Plus technology, the powerful natural evolution of the well-known Physis that, thanks to the system Moris© (Viscount Deep Learning), it has made possible to achieve a sound credibility never achieved before. In fact, it is able to capture and elaborate new parameters typical of organ sound, making our physical models incredibly realistic.



Extensive Connections
An extensive selection of external connections is located on the rear of the instrument. In addition to the standard connections, MIDI In-Out, headphones and mini-jack stereo inputs, dual audio output, there is also USB pen drive to save and upload sound settings, and for MIDI song recording and playback. The external audio can be adjusted with independent 5-band audio equalizers for each channel. Master volume and reverb controls are conveniently located on the left of the front panel.


Introduction Cantorum Duo Plus

Johann Gottfried Vierling (1750-1813) - Allegro in Bb major über "Nun lob, mein Seel, den Herren"



O.S. Current Release: 1.5.0

Before installing, please read carefully the Quick Guide or the User Manual. For assistance with the update package, contact customer service at

Notice: After the .ZIP file has been downloaded, extract the update .PHX file and copy it to the main folder (root) of a USB flash drive.


Physis Plus Editor Current Release: 1.1.3

ATTENTION: to use the Editor correctly, you must be sure that the version of the O.S. of the organ is compatible with the version of the Editor, as shown below. However, it is always advisable to keep the organ updated with the latest version of O.S. as well as using the latest version of Editor

Editor Version O.S. Version
1.1.1 1.2.1 – 1.3.0
1.1.2 1.4.0
1.1.3 1.5.0




Principalbass 16′

Octavbass 8′

Choralbass 4′

Posaune 16′

Klarine 4′

Coupler I/P

Coupler II/P

Manual I

Bourdon 16′

Principal 8′

Rohrflöte 8′

Viola 8′

Octave 4′

Superoctave 2′

Mixtur IV

Kornett III

Trompete 8′

Krummhorn 8′


Coupler II/I

Manual II

Gedackt 8′

Gamba 8′

Vox Celeste 8′

Principal 4′

Blockflöte 4′

Nasard 2 2/3′

Waldflöte 2′

Terz 1 3/5′

Scharff III

Fagott 16′

Trompette Harmonic 8′

Oboe 8′