Bienvenue à la nouvelle Wilson Audio ALEXIA

[Naturel]

Je viens d'avoir quelques infos sur l'ALEXIA et la meilleure info qui puisse se donner est qu'en fait.... il n'y a encore rien à savoir.
En résumé, il y a bien une conférence de presse le 15 septembre pour donner les caractéristiques de l'enceinte. Mais l'ALEXIA n'est vraisemblablement pas encore en production, il n'y a pas réellement de date de sortie sur le marché, le prix n'est pas encore fixé.

En attendant, nous ne pouvons que nous délecter des quelques photos existantes et laisser voyager notre imagination au gré de ce joli concept qui semble tout à fait prometteur. Pourtant, l'ALEXIA n'est pas un projet en carton, elle existe belle et bien et sa sortie ne devrait pas trop se faire attendre.

Patience, patience....

[Moogaddict]

Il semblerait que Wilson considère plus l'ALEXIA comme une "mini-XLF" que comme une grosse Sasha.

Mouais..... On pourrait auusi attendre la Sophia IV, qui sera très certainement équipée des nouveaux tweeters et non plus des Focal qui défraient la chronique.

Ce sera alors des mini-Alexia.... donc des mini-mini-Xlf....

[Naturel]

Un petit focus sur ce tweeter qui fait couler tant d'encre.

[Naturel]

Le voile se lève. Une vidéo de plus de sept minutes éditée par la marque Wilson Audio nous en dit plus.

http://www.youtube.com/watch?v=zZVX4oTB8_g&feature=em-uploademail

[Naturel]

Wilson Audio Introduces the All-new Alexia

September 15, 2012



Alexia began with a series of simple questions: What would happen if we merged the time-domain accuracy of the Alexandria XLF with a form factor similar to the Sasha? Could we design a compact speaker that rivaled the coherence, musicality, and resolution of our bigger speakers? As Wilson’s engineers began development of Alexia, they quickly realized that as seemingly simple as these ideas were, their real-world implementation, if possible at all, would require all of Dave Wilson and his team’s resources, ingenuity, and engineering expertise. They faced difficult challenges from the beginning: How to split a Sasha-style single upper module into two, fully adjustable modules for the midrange and tweeter, without introducing resonances and instability to the platform; how to substantially expand on the dynamic performance, resolution, and bandwidth of our existing compact loudspeakers; how to incorporate the necessary complexity of XLF-like time-domain adjustment while retaining the essence of Sasha’s beautiful and compact form. Many ideas were tried and then abandoned. Solutions to seemingly impossible problems presented themselves, and yet another model or prototype was built. But, in the end, after over a year of research and development, the Alexia project is complete.


We are very pleased and excited to introduce the all-new Alexia.

A Beautiful Form Born of a Complex Function:


Alexia is a truly modular system. Where Sasha is a two-module platform, with the midrange and tweeter drivers mounted in the same enclosure, Alexia’s midrange and tweeter are each housed in their own custom-designed module. The decision to engineer a totally modular platform introduced several design challenges related to maintaining a compact and cosmetically elegant superstructure. The MAXX and Alexandria employ a separate ladder housing to support their respective upper modules and to facilitate time-domain adjustability. It was decided early on that the ladder approach was incompatible with the desired Sasha-like form factor. After evolving through several iterations, the final design incorporates the tweeter module’s support system and propagation delay adjustment within the structure of the midrange module.


Alexia’s upper two modules are capable of very minute adjustments in the time-domain. Aspherical group delay technology, first implemented in Wilson’s flagship, Alexandria, has been incorporated into the Alexia design. To realize the complexities of both driver-axis tuning and time alignment, the midrange/tweeter assembly uses a combination of a captive spike and three additional spikes of different lengths, which in turn rest on a ten-step alignment block borrowed from the Maxx. The entire two-module assembly also moves fore-to-aft, along eight positions. The tweeter is separately adjustable in its relationship to the midrange module and, in turn, to the entire loudspeaker. A complex milled aluminum cross member is mounted above the tweeter module. It is a physical extension of the midrange module, bridging the open area along its upper section. The cross member serves two important functions: it enables exceptionally precise adjustment of the tweeter along ten separate steps; and, it provides an enormously rigid brace, adding strength and stiffness to the already very low resonance midrange module.


By way of comparison, the Sasha features a total of four spikes, which serve to rotate the single upper module to four separate positions. In contrast, both Alexia’s tweeter and midrange modules are adjustable independently, both moving front-to-back, accounting for the time alignment of each driver. Additionally, Aspherical Group Delay technology allows the modules to be rotated for optimum axis performance. All of which means Alexia can be adjusted in hundreds of different combinations to accurately accommodate a nearly limitless variety of listening configurations. The exact location of both upper modules is based on the specific geometry of each room and the location of the listener. Each module’s position is precisely specified in the provided owner’s manual. The Alexia’s measured time-domain accuracy surpasses all previous designs with the exception of the remarkable Alexandria XLF, which it equals.


Alexia’s form factor is similar to the Sasha W/P, even sharing its room-friendly footprint. It is just short of ten-inches taller, most of which is dedicated to greater volume in the bass enclosure. Alexia is much more ambitious and complex, inheriting much of its technology and overall sonic personality from Wilson’s flagship, the Alexandria XLF. The complexity and sophistication of the Alexia’s modular system yields huge dividends. Chiefly, it allows for far greater propagation delay adjustment, which, in turn, results in greater transient accuracy, tonal beauty, spatial retrieval, and musicality.


New Woofers:

From the beginning, Dave Wilson’s design goal with Alexia was to marry the performance and technology of his larger designs to a more compact and room-friendly platform. When it came to bass performance, he had two priorities. First, build upon the unprecedented speed, tunefulness, and agility of Sasha, and second, add the authority and weight that have, in part, made his large speakers legendary. This meant developing new drivers specifically destined for Alexia.



Anyone familiar with loudspeaker design will tell you it’s very difficult to design an enclosure and crossover that incorporate two different woofer diameters. But, engineering challenges aside, there is no better solution for combining speed and authority. In Alexia, the challenge is heightened given its compact enclosure volumes. Dave Wilson and Vern Credille, Wilson’s lead acoustic and electrical engineer, decided the solution was two new, purpose-designed drivers. Alexia’s new eight and ten-inch woofers serve all the design requirements of Wilson’s two-diameter woofer strategy.



Dave and Vern first successfully implemented the offset-diameter, two-woofer design in the X-1 Grand SLAMM, a speaker notable for, among many other things, its remarkable transient bass speed, dynamics, and authority. The driver strategy has been used in Wilson’s large speakers ever since. Alexia is the first Wilson compact loudspeaker to employ this strategy.



Woofer Enclosure:

When compared to Sasha, Alexia’s woofer cabinet has over eighteen-percent greater volume. This accounts for most of Alexia’s ten-inch height increase over Sasha. The Alexia’s larger enclosure volume was designed to perfectly accommodate the new low frequency drivers. Wilson used the latest laser interferometry to optimize wall thickness and the placement of strategic braces. The Alexia’s woofer enclosure walls, built entirely of Wilson’s proprietary composite, X-Material, are also thicker to better account for the woofer’s greater energy and output. Alexia’s woofer enclosure joins the long legacy of ultra-resonant designs.


XLF Midrange Driver:

Alexia features the same cellulose fiber/carbon composite midrange driver used in the Alexandria XLF. During development of the Alexandria X-2 Series 2, Dave immersed himself in the study of the experience of live music, culminating in a visit to the Musikverein Concert Hall in Vienna, Austria. Since then, Dave has made a yearly pilgrimage to the Musikverein. Along with satiating his abiding love of music, the trip serves to recalibrate his ears. Listening to exquisitely performed music serves to remind him of his ultimate goal: the believable reproduction of the unamplified musical event. He is not just focused on the sound of live music, but also the numinous experience he feels when listening to a great performance. It is through an empirical comparison of the live event to the same music played through his loudspeakers that has driven many technological breakthroughs at Wilson, not the least of which is this remarkable midrange unit.


Midrange Enclosure:

Wilson’s proprietary composite, S-material, first developed for the Sasha W/P, is used in Alexia’s midrange baffle. When combined with Wilson’s X-material, used in the balance of the mid module, measurable and audible noise and coloration in the midrange are minimized.


New Convergent Synergy™ Tweeter:

The original Convergent Synergy tweeter was introduced in the Alexandria XLF. The driver is the product of Wilson’s design team. Having rigorously explored a variety of exotic materials, such as beryllium and diamond, Dave concluded that while each of these materials had some virtues, none ultimately met his musical requirements. The Convergent Synergy tweeter’s dome is made from silk-based fabric. Dave’s design requirements of ultra-low distortion and very robust power handling down in the lower part of its range are beautifully met with this driver. It has exemplary off-axis dispersion characteristics in both the frequency and time domains. The noise floor is lower. Because of its low moving mass, its response extends to beyond 33 kHz. Perhaps most importantly, it synergistically adjoins Wilson’s midrange driver, the two together presenting a contiguous sense of tonality.


The latest iteration of Wilson’s remarkable Convergent Synergy™ tweeter now finds a home in the Alexia. The new version of the tweeter was designed to account for Alexia’s single-midrange geometry (as opposed to the two-midrange configuration of the XLF). This iteration of the Convergent Synergy tweeter retains the overall linearity, lack of grain, dynamic contrast, resolution of micro detail, and (from a technical point of view) its measured linear frequency response and very low distortion of the original design.


Price. Attention ceci est le budget annoncé aux USA:

U.S. Retail—$48,500


Availability:

First shipments for existing orders are scheduled for mid-November of 2012. Please place orders for demo and sell-through needs as soon as possible to reserve your shipment position. The orders will be filled and shipped on a first-come, first-served basis. Demo orders will be the first priority so all of Wilson’s dealers and distributors can begin showing the Alexia. Customer sell-through orders will be scheduled after demo orders have been filled. Check with Jerron Marchant for specific ship dates for your order.


Measurements:

Nominal Impedance: 4 ohms / minimum 2 ohms @ 80 Hz

Sensitivity: 90 dB @ 1W @ 1m @ 1k

Frequency Response: 20 Hz – 32 kHz +/- 3 dB

Minimum Amplification Power Recommended: 20 watts/channel

Drivers:

Woofer: 8 inches (20.32 cm) Cone Material: Paper Pulp

Woofer: 10 inches (25.4 cm) Cone Material: Paper Pulp

Midrange: 7 inches (17.78 cm) Cone Material: Cellulose/Paper Pulp Composite

Tweeter: 1 inch, Dome (2.54 cm) Material: Doped Silk Fabric

Dimensions:

Height: 53 1/4 inches (135.29 cm) w/spikes [Variable]

Width: 15 1/4 inches (38.74 cm)

Depth: 21 1/8 inches (53.70 cm)

Enclosure Type:

Woofer: (Rear Ported) X-Material

Midrange: (Rear Vented) X-Material/S-material baffle

Tweeter: (Sealed) X-Material

Product Weight:

Weight Per Channel Uncrated: 256 lbs (116.12 kg)

[Naturel]

[Naturel]

[PS4]

Ca a qd même de la gueule... Et même si je ne suis pas un fan du orange seventies, je dois avouer que ça match bien. Il n'y avait pas une voiture de sport italienne de cette couleur à une époque ?...
Sinon le baratin sur le changement de techno sur le tweeter m'amuse beaucoup... Tout ce temps pour se rendre compte que la soie c'est finalement mieux que les matériaux plus exotiques ? Fallait se fournir chez Scanspeak dès le départ alors... Il n'y a pas une histoire avec Focal plutôt ?...

Pascal

[Naturel]

En lisant la présentation, je me suis dis : "Voilà une pierre dans le jardin de B&W et de Focal". Ou alors, mais est-ce pensable, ce serait une enceinte que Wilson a pensé pour l'europe ?

Comme de bien entendu, ce texte est issu de la présentation faite par Wilson, l'écoute nous en dira plus. Mais je trouve que l'enceinte renferme pas mal d'atouts face aux modèles phares en europe. Déjà la taille,proche de celle d'une 800, sans doute l'intégration au vu des possibilités de réglages de l'enceinte.

[Naturel]

Bonjour à tous,

Hier José de NM était en Hollande chez l'importateur pour y découvrir la nouvelle Alexia. Durant l'écoute, il m'a envoyé ce long SMS :

"L'Alexia a un tweeter, médium et grave totalement indépendant, un woofer de 8,5 pouces et un autre de 10 pouces. Les deux woofers reçoivent pourtant le même signal. Probablement une manière de pouvoir proposer un grave terriblement présent dans une "petite" caisse. Le médium et le tweeter sont montés dans un système de labyrinthe complexe identique à celui de la grande XLF. L'Alexia est une "petite" enceinte qui offre énormément d'énergie. Elle m'apparait comme Wilson à son apogée même si je la sens plus difficile à placer qu'une Sophia ou qu'un Sasha. Au vu de sa taille, elle entrera dans beaucoup de salon de taille habituelle. La Dynamique est impressionnante.
Côté budget, pour l'europe, elle est à 55.900 eur. Cela fait 25% du prix d'une Alexandria et selon-moi, 75% du potentiel de l'Alexandria. Je pense que c'est la meilleure Wilson jamais construite. Le fait de pouvoir déplacer le tweeter, le médium et le grave de manière indépendante permet un ajustage et une cohérence qu'aucune enceinte ne propose. De toute évidence, ces possibilités de réglages demandent un savoir-faire indéniable pour tirer tout le potentiel de cette technique. Côté écoute, c'est bien une Wilson, exceptionnelle mais sans réelle surprise. C'est sans doute son seul point faible."