All Round Series – symphony 8x

Certificato AODM, il protocollo che garantisce la rispondenza ai postulati tecnici delle apparecchiature audio ottimizzate per la riproduzione della musica acustica AODM certificate, the protocol that guarantees the compliance with the technical postulates of optimized audio equipment for the reproduction of acoustic music

symphony 82

EXCLUSIVE RHD LOUDSPEAKER
PREMIUM HOME AUDIO

Juan Del Vecchio, autore del protocollo AODM, autore della tecnologia RHD, della tecnologia SST Audion nonché autore del metodo Simpest per la classificazione dei cavi audio di potenza - Juan Del Vecchio, author of the AODM protocol, author of RHD technology, SST Audion technology and author of the Simpest method for the classification of power audio cables

Il primo diffusore con tecnologia RHD - Alte capacità dinamiche paragonabili a diffusori almeno 3 volte più grandi!

Ideal candidate for the Guinness Book of Records!

The only speaker in the world that in just 12 centimetres of width is able to reproduce frequencies up to 30Hz!

The only one capable of giving you the widest sound front without limiting your listening to a specific position and play your favorite music with unmatched dynamics: even at low volume

Ideal for classical and chamber music but also capable of surprising you with other musical genres

The elegant lines and exclusive luxury coverings make them the ideal companions in high-class environments.

The smallest version of the speaker system comes with a small and intelligent Sub Woofer capable of making the entire playback system truly smart!

This can be programmed to automatically switch on based on your habits such as music genres and listening volume..

In fact, it can only come into action under certain conditions and further broaden the sound front and the impact of the low range..

In the higher versions of the symphony you can therefore enjoy listening experiences that no other speaker of the same size and costing even 5 times or more higher can ever give you. 

Official 5 year warranty

An exclusive product of very high craftsmanship.

A new concept of high fidelity in home music reproduction, a new concept based on the AODM protocol by maestro Juan Del Vecchio.

THE #1 FOR ACOUSTIC MUSIC PLAYBACK

Key Silence Official RHD tecnology vs. standard loudspeakers tecnology

INPUT CONNECTORS​

Rhodium-plated brass connectors, robust and reliable over time. Accepts both forks and banana plugs, but also directly stripped cable up to 16 mmq

Rhodium-plated brass connectors, robust and reliable over time. Accepts both forks and banana plugs, but also directly stripped cable up to 16 mmq

MDFC STRUCTURE​

Entirely made of MDF composite integrated with PVC and aluminum alloy

MDFC Structure - Entirely made of MDF composite integrated with PVC and aluminum alloy

MDFC STRUCTURE​

Entirely made of MDF composite integrated with PVC and aluminum alloy

ELECTRONIC CONTROLLED SUB WOOFER

Compact and powerful subwoofer with programmable intervention based on the musical program or listening volume

KEY SILENCE SMART SUB WOOFER - Compact and powerful subwoofer with programmable intervention based on the musical program or listening volume

STRICTLY PAPER MADE CONES

Despite what they wanted us to believe, paper is currently the best material for making cones thanks to its unsurpassed lightness and speed of response. 

Key Silence Speakers - STRICTLY PAPER CONES Despite what they wanted us to believe, paper is the best material for making cones today thanks to its unsurpassed lightness and speed of response.

STRICTLY PAPER MADE CONES

Despite what they wanted us to believe, paper is currently the best material for making cones thanks to its unsurpassed lightness and speed of response.

Exceptional soundstage for total immersion

With an active surface area that only speakers at least 3 times larger could have, the symphony will fill your listening room with music like no other speaker of its size in the world.

With an active surface area that only speakers at least 3 times larger could have, the symphony will fill your listening room with music like no other speaker of its size in the world.

The world’s first AODM CLASS 0 speaker

Designed and manufactured according to AODM technical standards, the symphony series speakers, with their exclusive RHD technology, allow for the reproduction of the audio signal in all its nuances and shades, for transparent and exciting listening without comparison with any other device of the same size. 

Designed and manufactured according to AODM technical standards, the symphony series speakers, with their exclusive RHD technology, allow for the reproduction of the audio signal in all its nuances and shades, for transparent and exciting listening without comparison with any other device of the same size.

The world’s first AODM CLASS 0 speaker

Designed and manufactured according to AODM technical standards, the symphony series speakers, with their exclusive RHD technology, allow for the reproduction of the audio signal in all its nuances and shades, for transparent and exciting listening without comparison with any other device of the same size

Artisans for 30 years

We have been building electronic devices since 1992 and over time we have perfected our techniques and procedures.

I could tell you that our products are absolutely superior to any other products currently on the market thanks to the unique technologies used, and in fact they are.

But that’s what everyone says.

The words “without comparison”, “without compromise” and “like no one else” are now almost empty statements..

This is why we offer a full guarantee on our products: the possibility of listening to them before.

The possibility of listening to them for another 30 days after purchasing them and returning them without problems, without complex procedures and without additional costs if you are not 100% satisfied

Guaranteed for 5 years, extendable if you decide to keep them.

But on one condition: we want you to testify yourself that you have never heard anything like this before, (if that’s true for you) after your next listening test of a Key Silence product.

And for this we will be forever grateful to you..

Juan Del Vecchio  

Some of our clients says…

BEYOND THE SOUND

17 October 2024

I don’t want to describe the system, it doesn’t matter, I’ve seen dozens of them. This is because when I listen to music, which is obviously not a concert, I close my eyes and therefore it makes no sense to judge from what I find in front of me. It’s the ears, the body that vibrates with every note, and the image that you create beyond your closed eyelids, that judge. And if in front of you you can see Robert Fripp while play to Starless, or Steve Hackett in Firth of Fifth, then it’s done. This is what I felt, these are my sensations, and then…then I opened my eyes.

Avatar for Giambattista Cerra
Giambattista Cerra

A lion behind the robe of a gazelle...

11 October 2024

A system with an unusual aesthetic and although very compact and discreet, the sight of a single speaker suggests a thin and limited sound, almost toy-like; and instead the solution has shown record-breaking performances even superior to many systems with a 5-figure price.

5 stars only because I can’t give 10!

Purchased to delight customers in our restaurant.

Parsifal Park Nicolosi

Avv. Rosario Privitera

Avatar for Paola - Parsifal Park
Paola - Parsifal Park

A sound stage never heard before with even much larger speakers

11 October 2022

I was skeptical at first but I had to change my mind. It’s true, it brings musicians into your home: No other system in the world with similar performance in just 12 cm of width. Extraordinary.

Manager Four SPA Catania

Avatar for Salvo Badalato
Salvo Badalato

Unbelievable

11 September 2022

I couldn’t believe my eyes when I saw the demonstration: that speakers with a driver of only 7 centimeters sounded so loud and good! The music filled the room and the instruments were there all around us…

Autoplanet – Augusta

Avatar for Santo Armaro
Santo Armaro

Beyond my expectations

11 July 2022

I am a Jazz fan but I also listen to a lot of classical and 80s and 90s pop, I no longer notice how the hours pass when I am in my listening room with the new Key Silence system. Really satisfied beyond my expectations…”

Aellecar – Giarre

Avatar for Orazio Arcidiacono
Orazio Arcidiacono

Technical Specifications

Loading system:

RHD ® – Dipolo con carico a tromba con accordo a controllo meccanico [Patented]

Type:

symphony 82: Single-way with Super Tweeter and Sub Woofer in pneumatic suspension

symphony 86 e 88: Single-way with Super Tweeter reinforcement (Sub Woofer in pneumatic suspension optional)

Drivers:

symphony 82

2 x 75 mm Full range with ultraspeed cone in VTR® paper and neodymium magnet

1 x 22 mm Super Tweeter with silk dome and neodymium magnet  

1 x 166 mm Sub Woofer in pneumatic suspension with VTR® paper cone

symphony 86

2 x 100 mm Full range with ultraspeed cone in VTR® paper

1 x 50 mm Super Tweeter with VTR® paper cone

symphony 88

2 x 160 mm Full range with ultraspeed cone in VTR® paper

1 x 25 mm Silk Dome Super Tweeter

Limit frequencies:

symphony 82

– 6 dB  27 Hz | 25 KHz

symphony 86

– 6 dB  32 Hz | 28 KHz

symphony 88

– 6 dB  25 Hz | 27 KHz

Frequency response:

symphony 82

36 Hz | 22 KHz  -3 dB  

symphony 86

41 Hz | 25 KHz   -3 dB  

symphony 88

34 Hz | 24 KHz  -3 dB  

Dispersion:

Front 65° ± 3 dB  
Rear 65° ± 3 dB

Crossover frequencies:

symphony 82

100Hz – 15 KHz  

symphony 86 – 88

[100Hz] – 12 KHz  

Sensitivity (1):

symphony 82

89 dB SPL (2,83V – 1m)

symphony 86

93 dB SPL (2,83V – 1m)
  

symphony 88

96 dB SPL (2,83V – 1m)  

Maximum applicable power:

symphony 82

320W

symphony 86

120W – [320W]  

symphony 88

360W – [600W]  

Nominal impedance:

4 Ohm [minimo 2,2]

Total active surface  (2):

symphony 82

325,6 Cmq

symphony 86

711,5 Cmq

symphony 88

1.210,2 Cmq

Drive ability factor (3):

symphony 82

58,1

symphony 86

111,2

symphony 88

86,5  

Dynamic Stability Ratio (4):

symphony 82

2,32

symphony 86

4,88 

symphony 88

3,71  

Dimensions (W x D x H):

symphony 82

Linear       12 x 21 x 100 Cm

Princess    13 x 21 x 100 Cm

Limited     15 x 21 x 100 Cm

symphony 86

Linear       18 x 30 x 151 Cm

Princess    20 x 30 x 151 Cm

Limited     22 x 30 x 151 Cm

symphony 88

Linear       22 x 38 x 182 Cm

Princess    24 x 38 x 182 Cm

Limited     26 x 38 x 182 Cm

Weight:

symphony 82

Linear  12,5 Kg.

Princess  17,5 Kg. 

Limited  20,5 Kg. 

symphony 86

Linear  28,5 Kg.

Princess  38,5 Kg. 

Limited  42,3 Kg. 

symphony 88

Linear  49,3 Kg.

Princess  66,5 Kg. 

Limited  70,8 Kg. 

Standard finish:

Anthracite black

Materials:

MDF | multi-layer wood – Aluminum alloy – Steel – Eco-leather – Leather – Paper – Etna lava basalt

Design:

Juan Del Vecchio

Download Pdf:

symphony 82

24 Downloads

symphony 86

49 Downloads

symphony 88

55 Downloads

Price:

starting from € 4.890,00

Notes: (1÷4)

(1) The sensitivity value refers to 2.83V and not to 1W which in this specific case corresponds to 2W since the speaker has an impedance of 4 Ohm

(2) The total active surface is essentially the area responsible of sound emission and represents in a speaker, its ability to play at high volume and its ability to offer a wide soundstage.

(3) The drive factor is the ratio between the active surface that emits the sound and the weight of the moving surface (the speaker cone or their sum if there is more than one). It represents the ability or otherwise of the speaker to emit the sound without requiring excessive current from the amplifier.

(4) Finally, the mechanical stability ratio is the ratio between the weight of the speaker and the weight of the speaker membrane and represents the speaker’s ability to annihilate both internal and external spurious vibrations caused by the speakers during their operation. 

These are parameters that are new to you and that you have certainly never encountered on the technical data sheets of other speakers, but which are particularly important for evaluating in advance what performance you can expect from the speaker in question.

Available Finishes


Diffusori Key Silence Serie All Round Symphony - Finitura LINEAR

LINEAR

Matte Finish | Glossy

FLO | FLL


Key Silence All Round Symphony Series Speakers - PRINCESS Finish

PRINCESS

Fine Wall Papers Finishing

FPI | FPE


Key Silence All Round Symphony Series speakers - LIMITED EDITION finish

LIMITED EDITION

Fabric Finish | Leather

FLT | FLE

Things You Might Want to Know

“What are the advantages of RHD technology?”

The RHD ® technology consists of a special horn-loaded dipole regulated by a mechanically controlled chord [Patented].

The solution allows to obtain the advantages of horn systems such as high efficiency and high acoustic power, but without the disadvantages such as high directionality and large dimensions..

Added to this is the ability of RHD® technology to return a musical message in an absolutely transparent and coherent way.

In fact, it does not modify the timbre in the various frequency regions as normally happens with multi-way systems.

The unmatched transparency of RHD® technology is also due to the total absence of non-linear components on the signal path (cross over networks).

Added to these advantages are those linked to an almost omni-directional emission which solves the problem of the focal point where the listener is normally forced to stay, under penalty of losing the stereophonic scene, as happens with traditional speakers.

Ultimately, high efficiency, very low distortion, an unparalleled soundstage combined with extremely compact dimensions are the main features of this innovative speaker system..

“What is the difference between the different power versions?”

The most important data that varies between versions is the SAT, total active surface: that is, the area that emits sound during operation.

As the size of the speaker increases, both the SAT and the efficiency and the acoustic power that the speaker can reach increase proportionally.

Given that even the smallest version can provide excellent sound even in rooms of over 100 m2, the larger versions obviously have a greater impact and the ability to reach high sound pressure levels..

“Why is the system considered a single-way system even though it has a tweeter?”

The symphony system is similar to a single-way system because the entire primary range of voices and the majority of acoustic instruments is entrusted to a single group of loudspeakers.

The reinforcement tweeter only intervenes above 12 KHz and a possible Sub Woofer below 100 Hz.

“Can I use the symphony speaker system on my existing system?”

The symphony speaker system has been designed and built in full compliance with the AODM protocol, with the aim of returning the musical signal sent to it with the maximum transparency technically possible.

Given this, it is natural to suggest the use of electronics of the same AODM level or at least high quality electronics..

Our suggestion is to consult our support before evaluating a possible purchase.

In this regard, you can obtain support and more detailed information by writing an email with this specific request to: assistenza@keysilence.com 

“What is the ideal amplifier for the symphony system?”

The symphony speaker system features a dedicated solution that currently represents the best available on the market: we are talking about the TOWER TEN DM22 and DM22P solid-state Single End amplifier, currently the only amplifier in the world with SST® technology certified AODM class 0..

However, there are quality amplifiers from which you can get the best out of them by using them with the symphony speaker system.

And just to name a few, very good amplifiers include the PASS Lab class A, the SUGDEN Masterclass, the YAMAHA AS series…, as well as the single end tube amplifiers from the Italian company MasterSound.

“Which version should I choose?”

The symphony 8x series consists of 3 versions, all with extraordinary and in some ways out of the ordinary features..

Each of them has performances that only speakers 3 to 5 times larger (maybe) could have..

If you have a room of at least 30 square meters, the intermediate version may be the best choice..

The largest of the family is certainly recommended for rooms larger than or equal to 80 m2, where they can best express their extraordinary qualities to recreate a LIVE effect.

In smaller environments, the first of the series will be able to provide the greatest listening satisfaction.

However, consider that even the smallest of the series is able to conveniently provide sound in environments of up to 80/100 m2 and that in cases of listening dedicated to classical music, given the typical listening volumes, it can already be the optimal solution..

“Why buy a Loudspeaker symphony system?”

Come per il TOWER TEN, il sistema diffusore symphony è un prodotto artigianale esclusivo, che si accompagna ad una garanzia reale di 5 anni estensibile a 10.

It is a furnishing accessory, an object made to last over time and to be handed down like a family jewel..

It is therefore a demanding product, not for everyone.

If you decide to make a symphony system yours, you should know that we use sustainable processes not only through a parsimonious use of resources and materials, reducing waste to a minimum with particular attention to total respect for the environment, but also through the employment of well-trained and adequately valued collaborators.

That we support culture by contributing to local bookstores that host it and help customers learn about it. 

“If I regret purchasing it, can I return it?”

Certainly yes, as with any Key Silence product, you have 30 days after purchase to calmly test the system..

In case you are not completely convinced or you simply have second thoughts, you do not have to worry about anything..

You just need to contact support and activate the return procedure simply.

You will not need to argue, we will collect the goods at our expense and you will be refunded the full amount paid without any additional cost and without any effort on your part.

Limitations only on custom or personalized products, contact support for all details regarding Custom versions.

“If after purchasing it I wanted to make a replacement/upgrade how do you evaluate the returned goods?”

Good news! We are the only ones to offer you a 100% valuation of your purchase for up to 12 months.

If you decide to upgrade with one of our products, we will take your used one and value it exactly as you paid for it.

“How do you buy a symphony speaker system?”

As already mentioned, the symphony series are also handcrafted products, therefore made to order..

With the exception of a few immediately available demonstration pairs, current delivery times are 30 days from order confirmation (EU).

Listening to the system or purchasing it can be booked by phone by filling out the form below.

You will be called back by a Key Silence assistant from whom you can receive all the details needed to proceed.

Book your Symphony here


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    Buy a Key Silence product with confidence

    You risk absolutely nothing, 100% satisfied or your money back!

    Special Key Silence WARRANTY, Buy a Key Silence product with confidence. You risk absolutely nothing, 100% satisfied or refunded!

    Yes you read it right, you have my word, 100% satisfied
    or refunded at no additional cost!

    We don’t want money from people who aren’t fully happy with our products and solutions.

    If this happens, you don’t have to worry.

    You just need to write an email to: assistenza@keysilence.com

    with the subject “Return” and the order number you received with the purchase email.

    You will not need to argue, we will collect the goods at our expense and you will be refunded the full amount paid without any additional cost and without any effort on your part.

    PS: DON’T miss the opportunity to take home a system with extraordinary performances built to entertain at advantageous conditions:
    Fill out and submit your request now