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Portada > Altavoces tipo monitor > Dynaudio > Dynaudio Special Forty
Dynaudio Special Forty
Más información en http://www.dynaudio.com/
ALTAVOZ DE 2 VÍAS TIPO MONITOR EDICIÓN ESPECIAL 40 ANIVERSARIO
Descarga del manual en .PDF
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Special Forty

Cutting-edge acoustic technology in a classic Dynaudio design

The new Special Forty anniversary speaker draws on 40 years of cutting-edge research – and brings it totally up to date with Dynaudio’s most celebrated techniques and technologies.

Laurels aren’t for resting on

We still surprise ourselves. Some people might be content to sit back and be complacent about their successes after 40 years of constant innovation. We aren’t. In fact, we only get hungrier for new techniques and technologies.
That’s why we developed the Special Forty: we wanted to revisit those innovations and see what we’d do differently this time.

What you won’t find here is anything revolutionary. Instead, you’ll discover a look at our past – along with some special sneak-previews of the future.

The Special Forty is classic Dynaudio: all the craftsmanship, attention to detail and total love of authentic sound you’ve come to expect. It’s the connoisseur’s choice – a simple pair of passive hi-fi speakers. But it isn’t about looking back, misty-eyed, at past glories and leaving it at that. It’s about using those glories as a platform from which to launch our next set of breakthroughs.

Greatest hits… reimagined

We do compact speakers really well. We always have. So, as a nod back to classics including the Special One, the Special Twenty-Five, the Crafft and the Contour 1.3SE, we kept the Special Forty pure – if incredibly advanced.

Of course, it wouldn’t be an anniversary speaker if it didn’t include some of our greatest hits. But we haven’t just got the old band back together to trot out the same old stuff, unchanged. We’ve remixed, remastered and rearranged things to bring those old favourites into 2017 – and beyond.

That’s why it has one of our classic first-order crossover designs, incorporating our unique Phase Alignment and Impedance Alignment technologies. The crossover expertly marshals the input signal between the woofer and the tweeter – so each driver gets only the frequencies it’s supposed to, and can perform at its very best. Its specially selected components handle the impedance optimisation and, because both drivers have extended frequency ranges for even better overlap and integration, that performance borders on the mesmerising.

The song remains the same

The Special Forty uses our proprietary MSP (Magnesium Silicate Polymer) material for its main driver. MSP delivers precisely the right combination of rigidity, damping and stability for the most faithful sound reproduction. And, unlike other cone materials, it doesn’t change over time – so your Special Forty speakers will still be singing just as sweetly come our next anniversary.

The cone itself uses a painstakingly developed symmetrical excursion for even better midrange performance. Behind it sits our asymmetrical spider – our passive harmonic rectifier. It minimises upper harmonics to further tighten the performance and make it possible not only to pick out individual parts in a piece of music, but even individual instruments in an orchestra. (So now, finally, the Third Violin section can have its day in the sun.) And, like all our other MSP cones, it’s a one-piece design (you can tell by the special balance ribs around the central dust-cap). This gives it an incredibly solid connection to the voice-coil, as well as stabilising its form – which is crucial when you decide to turn it up to 11.

It all sits in our special AirFlow Basket – the bit that holds the whole driver motor securely in place in the cabinet. Its development was one of those ‘Eureka!’ moments our engineers seem to get a few times a week in Dynaudio Labs (you can often hear them cheering from across the road in our factory). We asked them to reduce internal reflections and increase air movement without compromising the basket’s stiffness or stability, and this genius design is what they came up with.

Airflow is king

The new Esotar tweeter takes air-movement to another level. It moves the air in typically sweet fashion in front of the DSR (Dynaudio Secret Recipe) precision-coated soft-dome, of course, but there’s a lot of engineering going on behind it as well.

Take the new pressure conduit. It’s a shaped vent in the back of the hybrid magnet system that allows more space in the rear chamber. That space lets us pack in more damping material and reduces back-pressure, while the shape itself optimises airflow coming backwards from the rear of the dome.

Then there’s the outlet; the aero-coupled pressure-release system. It sits underneath the voice-coil and reduces unwanted pressure build-up that could affect its movement. Stopping those pockets of air from forming reduces resonance – and less resonance equals even greater potential for detail.

Flux optimisation and beam control

We love playing with the laws of physics. Physics wins in the end, of course (usually), but we almost always manage to bend it to our will along the way. Just like we have with our magnet systems.

The magnet turns electrical energy that flows from your amplifier into the voice-coil, into the physical back-and-forth movement of the driver diaphragm. These movements are very small and very fast (especially in the tweeter), so they need a lot of finesse if you want to hear all that luscious detail and emotion in your music.

Behind the woofer

In the woofer, we’ve achieved that finesse in two ways: by placing the magnet inside the voice-coil, and by playing with magnetic energy itself.

Other manufacturers typically put it around the outside edge, leaving the voice-coil hollow. Putting the magnet inside keeps the magnetic energy (or flux) in the optimum position for getting itself wrapped around the voice-coil – where it should be. That means we can use more of its power for a given weight. It also reduces internal reflections because there’s less material for sound to bounce off inside the driver.

Second, we use a hybrid magnet for even greater control over the flux and voice-coil movement. An incredibly powerful neodymium rare-earth magnet provides the muscle and flings flux around with abandon, while a ferrite magnet tempers that enthusiasm by gently moving the flux back to exactly where it’s needed most. The result? Symmetrical excursion, a reduction in second-harmonics, and an even more accurate, authentic sound.

Box clever

And then there’s the finish. Whichever veneer you’ve gone for, the Grey Birch or the Red Birch, our designers have given you a treat. We’ve always pushed the boat out on our special anniversary speakers – from the luscious bird’s-eye maple of the Contour 1.3 SE to the Special Twenty-Five’s stunning burled birch and the Sapphire’s amazing Mocca, Bordeaux and Ivory veneers. The Special Forty takes that to a new level. We pushed our team to come up with something different to the kind of thing we’ve done in the past, and they took that to heart. That’s why they’re raw; visceral; striking. We wanted the Special Forty to look as authentic and honest as the music they’re playing sounds.

Aspectos destacados:

  • Esotar Forty
    The new Esotar Forty tweeter maximises airflow for even more refinement, while its low resonant frequency smooths the transition to the woofer
  • 17cm woofer
    Our best 17cm woofer yet. It's based on what you'll find in the Confidence and Evidence ranges, and uses a sophisticated hybrid magnet system for lower distortion and higher power.
  • First-order crossover
    Phase Alignment and Impedance Alignment technologies keep this classic Dynaudio crossover topology firmly on top of its game.
  • Special finishes
    The Special Forty's exclusive Grey Birch High Gloss and Red Birch High Gloss finishes are as striking as they are beautiful – and are unique to each speaker.

Características:

  • Cutting-edge acoustic technology in a classic Dynaudio design
  • The Esotar Forty tweeter
  • This DSR precision-coated 28mm soft-dome tweeter is unique to the Special Forty.
  • Our best 17cm woofer yet
  • The ultimate incarnation of our legendary 17W75 MSP woofer, with an AirFlow Basket and hybrid magnet system.
  • Classic Dynaudio crossover
  • This is a variant of the first-order crossover used in our other classic two-way speakers – and its performance borders on the mesmerising.
  • Special finishes
  • Striking Grey Birch or vivid Red Birch? Either way, your eyes are in for a treat.
  • Aluminium terminal plate
  • Five-way binding posts and the 40th anniversary logo: we care for the bits you don't see too much, too.
  • Made in Denmark
  • Designed and engineered in Dynaudio Labs, and built across the road in our factory… all in Skanderborg.
  • Technical specifications
  • Specification sheet forSpecial Forty part 2
  • Sensitivity: 86dB (2.83V / 1m)
  • IEC power handling: 200W
  • Impedance: 6Ω
  • Frequency response (+/- 3dB): 41Hz – 23kHz
  • Box principle: Bass-reflex rear ported
  • Crossover: 2-way
  • Crossover frequency: 2000Hz
  • Crossover typology: 1st order
  • Woofer: 17cm MSP cone
  • Tweeter: 28mm Esotar Forty
  • Weight: 8.1kg / 17.9lb
  • Dimensions (WxHxD): 198 x 360 x 307mm / 7.8 x 14.2 x 12.1in
  • Dimensions with feet/grille (WxHxD): 198 x 360 x 322mm / 7.8 x 14.2 x 12.7in

Finishes/grilles: Grey Birch/Black, Red Birch/BlackThe Contour 20 standmounter takes everything we know about speaker technology – we’re Danes; we know a lot – and puts it in a compact, clean and great-sounding package.

Its sweet-toned Esotar2 soft-dome tweeter has been a legend in its own right for years. It’s commonly regarded as one of the world’s best-ever drivers – and because it’s been such a great friend to so many millions of ears (and a key part of Contours past), we just had to give it another outing.

...
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Acabados posibles:


Abedul rojo lacado

Abedul Gris lacado

The extended-excursion 18cm woofer, though, is brand new. It’s powered by a lightweight aluminium voice-coil and a vented dual-ferrite magnet system, and was created by driver specialists Danny Pasfall Christensen and Andreas Eberhardt Sørensen and their team under acoustic maestro Daniel Emonts. (They can hear the differences between different types of glue. We like those guys.)

It’s made from MSP – a material we developed ourselves, and have been using in our drivers since 1985. MSP gives exactly the right combination of stiffness and damping – which you’ll hear as exactly the right combination of power, finesse and control. Just what a Contour speaker should have. But we’ve taken it further: we’ve varied the diaphragm’s thickness across its surface, which gives even greater control over its sound.

Making a Contour without its signature baffle would be like making a car without wheels. Unthinkable. But there’s always room for improvement – and our designers love to stretch their legs (you should see the number of sketches they produced for just this part). This baffle is aluminium, and set into the cabinet. Its chamfer is included in the driver’s basket – which not only looks great, but also reduces unwanted high-frequency diffraction effects for clearer treble, and provides a solid foundation for the drivers to do their work. A solid foundation means improved high-volume performance at low frequencies, too (although your neighbours might not thank us for that).

And although we might have changed the cabinet’s shape (square is out; curves are in), the new design tips a respectful nod to older Contours. Look at it from the top; you’ll see the old baffle design in its shape. But it isn’t just for show – the new shape marries those aesthetics with cutting-edge acoustic physics. Its multi-layered construction is extremely well-damped, which means the Contour’s sound goes exactly where it’s supposed to: forwards.

We’ve redesigned the internal wiring and crossover, too. You won’t see what we’ve done, but you’ll hear the effect: amazingly clear sound, even off to the sides of the speakers. We love it.


 
Studio 22

   Calle Colombia nº 22 (local izda), 28016 MADRID | Teléfonos: 913504965 - 913503130
   HORARIO: Lunes a Viernes 10:30-14:00 y 17:00-20:00. Sábados 10:00-14:00
   URL: http://www.studio-22.com | E-MAIL:

 

 

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