Domus 4 / S4

The Domus 4 is a powerful but versatile organ, enclosed in a compact melamine cabinet, therefore particularly suitable for the most circumscribed venues, also available with Style cabinet, without rolltop (S4). An organ that offers a unique organ experience, but within everyone’s reach.

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With its 32 stops (+ 3 orchestral) and double expression pedal, the Domus 4 / S4 integrates important new features in terms of functionality and Editor. Equipped with the Viscount digital amplifier, it also ensures maximum efficiency and savings in terms of electricity and CO2 emitted. Domus 4 / S4, like all the organs of the Domus line, incorporates the amplification system with two woofers with the possibility of audio management via editor that guarantees a very satisfying sound experience. In the notes played, you will hear details of the organ pipe sound that, together with the many additional voices, give the maximum in terms of sound and flexibility.



Technology Physis Plus Advanced Physical Modelling
Manuals 2
Total Stop Controls 32 Organ + 3 Orchestral
Pedal 9
MAN I 11
Alternative Organ Voices 5 or more on each tab
Alternative Orchestral Voices 30 or more on each orchestral tab
Couplers 3
Memory Locations 1000 (000 - 999)
Memory Banks 3
Total Memories 3000
Piston Sequencer Two thumb pistons
Pipe Sets Baroque, Romantic, Symphonic + 3 assignable sets


Height (excluding music desk) Domus 4: cm 119,1 - 46,9”
Domus S4: cm 116,7 - 46”
Height (including music desk) Domus 4: cm 136,5 - 53,8”
Domus S4: cm 134 - 52,8”
Width Domus 4: cm 126 - 49,6”
Domus S4: cm 126 - 49,6”
Depth (excluding pedal board) Domus 4: cm 62,5 - 24,6”
Domus S4: cm 57 - 22,5”
Depth (including pedal board) cm 113,4 - 44,6”
Weight Kg 123 - Lbs 272


Stop Controls Tilt Tabs
Rolltop Domus 4: Included
Domus S4: Not Included
Laminated Wood Dark oak, Light oak


Bench Included
Adjustable Bench Optional
Orchestra and MIDI Sustain Side Switch on Expression 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
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


Adjustable Desk Optional
Wooden Desk Included


Standard Keyboards Available
Plastic Black Keyboard Covered with Real Wood Optional
Ivory / Wood Colored Plastic With Wooden Core Optional
Viscount AWK Keyboards With Wooden Core Optional (only for Domus 4 model)


30 note Straight Concave or Flat, Radiating Concave Available


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


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


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


Internal Amplifiers 4 channels Class-D amplifier - 150W per channel
Internal Speakers 6 total | 2 tweeter | 2 mid-range | 2 x 8” woofer
Channel Assignable Reverb LR | General | Sub


Temperaments Available
Pipe Set Available
Pitch Available
Crescendo Steps Available
2 x Expression Pedals Level Available
Transposer Available
Quick Access Levels (Master, Reverb, Ext Out, ...); Songs




The tabs, thumb pistons and display provide effective control over the entire instrument and have been ergonomically designed and arranged to respond to user requests quickly and easily. The display is located on the right side of the instrument. Many pistons are available for divisional and general memory levels. The arrangement is elegantly integrated with the instrument to allow a wide range of possibilities and customization, everything is at hand.



Domus 4/S4 is equipped with keyboards “Tracker Action” 2 x 61 notes, on which significant improvements have been made compared to the previous version, to achieve that “true feeling” sought by every organist. The feel provided by the keyboard is just that of the best mechanical traction thanks to the Tracker Touch effect, mixed with detailed algorithms, which will give you an unprecedented organ experience. Touch sensitivity is also particularly useful with orchestral voices or MIDI. For the most demanding organists the Domus 4/S4 is also available with optional wooden keyboards, including the outstanding AWK (only for Domus 4 model).



Domus 4/S4 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.



An extensive selection of external connections is smartly and conveniently located underneath the lower keyboard. In addition to the standard connections, MIDI In-Out, headphones and stereo inputs, there is also USB pen drive to save and upload sound settings, and for MIDI song recording and playback. Master volume and reverb controls are conveniently located on either side of the output panel. On the rear of the instrument there are additional audio outputs: One subwoofer and two stereos for optional external speaker cabinets. The external audio can be adjusted with independent 7-band audio equalizers for each channel.



Domus 4/S4 has one Expression pedal that provides a fluid and precise movement – allowing complete control of the volume for Manual II and the Crescendo programmable up to 16 levels.


Introdution Domus 4 & S4



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
1.0.3 1.0.4 – 1.0.8
1.1.0 1.1.0
1.1.1 1.2.1 – 1.3.0
1.1.2 1.4.0
1.1.3 1.5.0




Principalbass 16’
Subbass 16’
Violone 16’
Octavbass 8’
Gedacktbass 8’
Choralbass 4’
Posaune 16’
Trompete 8’
Klarine 4’
I / Ped
II / Ped

Manual I

Bourdon 16’
Principal 8’
Rohrflöte 8’
Viola 8’
Octave 4’
Spitzflöte 4’
Superoctave 2’
Mixtur IV
Kornett III
Trompete 8’
Krummhorn 8’
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’
Sharff III
Fagott 16’
Trompette Harmonique 8’
Oboe 8’



Contre-basse 16’
Soubasse 16’
Grande Quinte 10 2/3’
Octave 8’
Bourdon 8’
Flûte 4’
Bombarde 16’
Trompette 8’
Clairon 4’
Tirasse G.O
Tirasse REC

Grand Orgue

Montre 8’
Flûte Harmonique 8’
Bourdon 8’
Gambe 8’
Prestant 4’
Flûte Ouverte 4’
Doublette 2’
Fourniture IV
Cornet V
Trompette 8’
Cromorne 8’


Cor de Nuit 8’
Viole de Gambe 8’
Voix Celéste 8’
Principal 4’
Flûte Octaviante 4’
Nazard 2 2/3’
Octavin 2’
Tierce 1 3/5’
Cymbale III
Bombarde 16’
Basson-Hautbois 8’
Clairon 4’



Praestant 16’
Subbas 16’
Roerquint 10 2/3
Octaf 8’
Gedekt 8’
Koraal-bas 4’
Bazuin 16’
Trompet 8’
Trompet 4’
Koppel HW / Ped
Koppel ZW / Ped


Bourdon 16’
Praestant 8’
Roerfluit 8’
Quintaden 8’
Octaf 4’
Fluit 4’
Octaaf 2’
Mixtur IV
Cornet V
Trompet 8’
Kromhorn 8’
Koppel ZW/HW


Gedekt 8’
Viola di Gamba 8’
Vox Celeste 8’
Praestant 4’
Roerfluit 4’
Nasard 2 2/3’
Woudfluit 2’
Terts 1 3/5’
Scherp III
Fagot 16’
Trompet Harmonik 8’
Hobo 8’