Viscount International: the Art of Sound!

Sonus 359

The largest organ sound in the smallest 3 manuals console with Physis technology ®! Thanks to the sound coming from multiple sources, we can simulate multiple reflections of the walls, ceiling and floor of a large reverberant environment. The new 'Pipe-organ real audio rendering' system (with 8.1 channels and 13 speakers) make feel the organist at center stage for a new and engaging sound experience.
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The SONUS  359  is a three -manual organ with a 32 note pedalboard and  59 register-tabs, each of which can select hundreds of organ and orchestra voices.  

Available in both wood and laminate console finishes, the SONUS  359  comes with  8 organ styles (4 preset  and 4 programmable) that allow the organist to create and store an infinite number of combinations, either in the 128 internal memory locations or externally via USB memory. The parameter settings are easily accessible through the graphic display on the front panel. The “Tracker Action” style keyboard accurately detects touch by obtaining the speed of actuation of the keys, making it possible to feel a "Tracker Touch" effect, i.e .the correlation between the "touch" of the organist and the transient attack of each virtual pipe.

Developed with the award-winning and patented Physis® physical modeling technology, which reproduces the physical phenomena involved in the sound generation of the pipe organ, the Sonus 359 is capable of generating the highest-fidelity, most authentic church organ sound.

Parameter settings are easy to access, modify and store through the graphic display on the front panel.

The SONUS 359 uses a revolutionary new sound system developed by Viscount called RAR (Real Audio Rendering). It is able to simulate multiple sound reflections of the walls, projecting the organist at center stage and involving them in an unforgettable sound experience – even from their living room or studio.



_____SPECIFICATIONS (Available=●)


Manuals 3 x 61 notes "tracker touch" keyboards, with velocity control for MIDI and Orchestra sections.
Pedalboard notes 32 notes straight, straight concave, radiating concave
Register Control Tilt Tab
Internal Amplification 8 x 60 Watt + 1 x 100 Watt
Speakers 13
Expression Pedals 2
Crescendo Pedal yes


Pedal 12
Choir 15
Great 14
Swell 18
Total Classic Voices < 460
Total Orchestral Voices < 100
Styles 4 Preset + 4 User. Hundreds sound styles can be loaded and/or stored from/to internal memory and pen drive
Alternative Voices Selectable additional sound for each stop
Orchestral Alternative Voices Selectable additional sound for dedicated stop
General Pistons 10
Selection of memories with toe piston Yes
Divisional Pistons 6
Memory Bank 16
Total Memories 160 General, 384 Divisional, tens of thousands with Pen Drive and in internal memory
Piston Sequencer Prev - Next pistons


Toe Pistons 22
Automatic Pedal Yes
Enclosed Piston Yes
Couplers 6, with Stops and Toe Studs
Transposer -6/+5
General and Reverb Volume With rotary potentiometers
MIDI enable Yes
Orchestra and Midi Sustain Kick switch located on the side of the expression pedal
Remote Control Optional radio no directive 50 mt distance remote control with built in 2x16 display


Display 128 x 64 dots graphic with backlight
Voice Parameters Stop by stop adjustable voice parameters
Divisional Volume Separate for each division
Volumi Rendering Audio Separate for front height speakers and side speakers
Tremulant 3, Separately for each manuals depth and speed adjustable
Reverb 8 Types
Adjustable Ensemble Effect Adjustable
Air Pressure Effect Proportional to the active Voices
Historic Temperaments Kirnberger II, Kirnberger III, Werckmeister III, Werckmeister IV, Werckmeister V, Vallotti, Silbermann I, Silbermann II, Kellner 1975, Meantone, Meantone pure minor third, Zarlino, Sauveur I, Sauveur II, Barca, Rameau, Pythagorean; each with programmable "Tonic" Key Note
Short Octave Programmabile indipendentemente per ciascuna tastiera e pedaliera
Keyboards Inversion Yes
Programmable Output Routing Stop by stop adjustable windchest layout
External Output Volume Control independent volume control for each channel
5 Bands Equalizer on External Outputs independent equalizer for each channel
5 Bands Equalizer on Internal Amplification Yes
Midi Programmable Tx/Rx Midi Ch., Tx/Rx Midi Filter, Send PG, Keyb. Midi Velocity
Sequencer Interactive song sequencer with overdubbing function
File Management Copy, Load, Save, Rename, Delete etc.
Lock Organ With password


Midi In, Out, Thru Yes
Stereo Headphone Output Yes
Stereo Aux Input Yes
Mic. Input With gain control
External Output 5, 13 with output optional expansion board
USB to HOST For finest finishing and personalization like Stop by Stop, Note by Note Volume and Pitch Regulation, Stop disposition, Internal and External Routing, etc. (optional)
Dimensions including music desk and pedalboard (WxHxD) 145,2 x 143,5 x 113,5 cm - 57,17" x 56,49" x 44,69"
Dimensions without music desk and pedalboard (WxHxD) 145.2 x 122.5 x 69 cm - 57.17” x 48.23” x 27.17”


Cabinet Features Elegant console in dark, medium or light oak, with matching bench
Colours / Finishes Light oak real wood veneer (Deluxe), Medium oak real wood veneer (Deluxe), Dark oak real wood veneer (Deluxe)
Weight 159 kg / 350 lbs




Powered by Physis®

Sonus sets a new milestone in the reproduction of the classic organ sound as it effectively combines the unique RAR (Real Audio Rendering) and Physis® technologies, both developed by the Viscount Research & Development department. Physis® is a technology based on the creation of complex mathematical algorithms capable of simulating the physical and acoustical phenomena underlying the generation of sound in the pipe organ. It’s a completely different approach from common digital sound sampling because every single note, every chord, every slightest nuance of the performance is not the result of a simple “playback” of a sound but it stems from a sound generation process which operates fluidly in real time, just as it occurs organically and naturally in a physical instrument. The modeling algorithms that make Physis® organs so unique is the result of a monumental amount of work that now allows the creation of innovative and versatile instruments, redefining the state of the art.



Amplification RAR (Real Audio Rendering)

Starting with Physis® sound generation technology, we have designed a revolutionary new audio system called RAR (Real Audio Rendering). The heart of the system is a powerful realtime sound processing algorithm that, in conjunction with four new additional audio channels located at specific points on the console, is able to recreate with great accuracy the acoustic field produced by a real pipe organ in a large reverberant space. Thanks to RAR technology, you can totally manage the impression of three-dimensional space in which the instrument sits all the way up to a large cathedral setting. All this is possible without connecting any additional speakers. The versatility of Physis® technology, together with a painstaking study on the optimization of components, has allowed us to integrate the entire system inside the new organ consoles, in an extremely compact design. 

In addition to the traditional amplification, we placed two pairs of full-range speakers at strategic points on the console: one pair on the outside panels and one pair on the top stop jamb panel. In this way, as the sound comes from different positions, it is possible to simulate the multiple reflections of the walls, ceiling and floor of a large reverberant space. The effect is quite startling. You will experience a difference just as significant as that achieved when you add a surround sound system to your home television.



“Tracker Touch” style keyboard 

Knowing the importance of the classic-organ keyboard, we’ve taken the utmost care in selecting the absolute best components. The mechanics of the keys gives the impression of a true “Tracker Action”, by obtaining the speed of actuation of the keys – making it possible to feel the “Tracker Touch” effect. i.e. the correlation between the “touch” of the organist and the transient attack of each virtual pipe.  The keyboard is not only comfortable and consistent to play, but also dynamically sensitive, which is useful for the MIDI and Orchestral sounds – but also essential to provide the “Tracker Touch” effect.



Complete Connections

A complete selection of external connections is smartly situated.

In addition to Standard connections (MIDI In, Out, Thru; Headphones, stereo inputs), there’s a microphone with gain control, 4 external multiple outs + Sub – with the option to expand these to 12+1(Sub). There are also USB host and Device connections.

For the USB Host connection, it’s possible to use a thumb drive to save and upload sound settings.

For the USB Device connection, you can connect to a PC to personalize all aspects of the organ. With the Optional “Physis Editor” for PC, you can modify every single register for every single note – including volume, pitch, spacial disposition – and many other parameters 



The buttons and tabs to turn registers on and off, the pistons and all the other commands are ergonomically designed to respond quickly and easily to the demands of the user. The display is conveniently located on the side panel with it’s own set of designated controls. The layout is smartly integrated with the instrument to allow unlimited possibility and personalization at the user’s fingertips.



Three Pedals

The three pedals provide a fluid and precise movement – allowing complete control of the volume for Manual I, the volume for Manual III – as well as the Crescendo.






Contra Bourdon 32' 

Open Diapason 16' 

Sub Bass 16'

Octave 8' 

Bass Flute 8'

Choral Bass 4'

Bombarde 32'

Trombone 16'

Trumpet 8'

Clarion 4' 

Pedal String


Double Diapason 16' 

First Diapason 8' 

Second Diapason 8' 

Hohlflute 8' 

Dulciana 8'

Octave 4'

Wald Flute 4' 

Twelfth 2 2/3' 

Fifteenth 2'

Mixture V

Double Trumpet 16' 

Trumpet 8'

Great Chimes

Great Voice 2


Bourdon 16' 

Lieblich Bourdon 16' 

Geigen Diapason 8' 

Rohrflute 8' 

Viola 8'

Voix Celeste 8'

Octave 4'

Harmonic Flute 4'

Nasard 2 2/3'

Flautino 2'

Tierce 1 3/5'

Plein Jeu IV 

Fagotto 16' 

Trompette 8'

Oboe 8' 

Vox Humana 8'

Clairon 4' 

Swell Celesta

Swell Voice 2


Contra Gamba 16' 

Concert Flute 8'

Gamba 8'

Erzahler 8'

Erzahler Celeste 8' 

Geigen Principal 4' 

Spire Flute 4' 

Piccolo 2' 

Larigot 1 1/3'

Mixture IV 

Clarinet 8'

French Horn 8'

Fanfare Trumpet 8'

Choir Harp

Choir Voice 2



SONUS 359 US STANDARD - Alternative Voices.pdf

SONUS 359 US STANDARD - Styles.pdf