{"id":11948,"date":"2020-07-22T11:44:11","date_gmt":"2020-07-22T09:44:11","guid":{"rendered":"https:\/\/alphahighend.be\/?post_type=product&p=11948"},"modified":"2022-06-17T10:22:36","modified_gmt":"2022-06-17T08:22:36","slug":"dynaudio-special-forty-2","status":"publish","type":"product","link":"https:\/\/alphahighend.be\/en\/produit\/dynaudio-special-forty-2\/","title":{"rendered":"Dynaudio Special Forty"},"content":{"rendered":"

Dynaudio Special Forty : Bookshelf Speaker<\/h1>\n

That\u2019s why we developed the Special Forty:\u00a0we wanted to revisit those innovations and see what we\u2019d do differently this time.<\/p>\n

What you won\u2019t find here is anything revolutionary. Instead, you\u2019ll discover a look at our past \u2013 along with some special sneak-previews of the future.<\/p>\n

The Special Forty is classic Dynaudio: all the craftsmanship, attention to detail and total love of authentic sound you\u2019ve come to expect. It\u2019s the connoisseur\u2019s choice \u2013 a simple pair of passive hi-fi speakers. But it isn\u2019t about looking back, misty-eyed, at past glories and leaving it at that. It\u2019s about using those glories as a platform from which to launch our next set of breakthroughs.<\/p>\n

Greatest hits\u2026 reimagined
\n<\/strong>We do compact speakers really<\/em> 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 \u2013 if incredibly advanced.<\/p>\n

Of course, it wouldn\u2019t be an anniversary speaker if it didn\u2019t include some of our greatest hits. But we haven\u2019t just got the old band back together to trot out the same old stuff, unchanged. We\u2019ve remixed, remastered and rearranged things to bring those old favourites into 2017 \u2013 and beyond.<\/p>\n

That\u2019s why it has one of our classic first-order crossover designs<\/a>, incorporating our unique Phase Alignment and Impedance Alignment technologies. The crossover expertly marshals the input signal between the woofer and the tweeter \u2013 so each driver gets only the frequencies it\u2019s 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.<\/p>\n

The song remains the same
\n<\/strong>The Special Forty uses our proprietary MSP (Magnesium Silicate Polymer) material<\/a> 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\u2019t change over time \u2013 so your Special Forty speakers will still be singing just as sweetly come our next anniversary.<\/p>\n

The cone itself uses a painstakingly developed symmetrical excursion for even better midrange performance. Behind it sits our asymmetrical spider \u2013 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\u2019s 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 \u2013 which is crucial when you decide to turn it up to 11.<\/p>\n

It all sits in our special AirFlow Basket \u2013 the bit that holds the whole driver motor securely in place in the cabinet. Its development was one of those \u2018Eureka!\u2019 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\u2019s stiffness or stability, and this genius design is what they came up with.<\/p>\n

Airflow is king
\n<\/strong>The new Esotar Forty tweeter takes air-movement to another level<\/a>. It moves the air in typically sweet fashion in front of the DSR (Dynaudio Secret Recipe) precision-coated soft-dome, of course, but there\u2019s a lot of engineering going on behind it as well.<\/p>\n

Take the new pressure conduit. It\u2019s 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.<\/p>\n

Then there\u2019s 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 \u2013 and less resonance equals even greater potential for detail.<\/p>\n

Flux optimisation and beam control
\n<\/strong>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.<\/p>\n

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.<\/p>\n

Behind the woofer
\n<\/strong>In the woofer, we\u2019ve achieved that finesse in two ways: by placing the magnet inside the voice-coil, and by playing with magnetic energy itself.<\/a><\/p>\n

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 \u2013 where it should be. That means we can use more of its power for a given weight. It also reduces internal reflections because there\u2019s less material for sound to bounce off inside the driver.<\/p>\n

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\u2019s needed most. The result? Symmetrical excursion, a reduction in second-harmonics, and an even more accurate, authentic sound.<\/p>\n

2020 finish update
\n<\/strong><\/p>\n

Dynaudio\u2019s award-winning anniversary speaker, Special Forty, has been given a makeover with two stunning new finishes. Black Vine is a striking contrast of dark veneer shot through with vivid orange, while Ebony Wave is a captivatingly sinuous take on the classic hardwood.<\/p>\n

Both veneers are man-made to Dynaudio\u2019s specs, ensuring total consistency between pairs of speakers. And the level of finish possible is simply astonishing \u2013 they look as smooth as glass, and as lustrous as a piece of luxury antique furniture. Just as you\u2019d expect from a nation of design-fanatics.<\/p>\n

Specifications :\u00a0Dynaudio Special Forty<\/h3>\n\n\n\n\n\n\n\n\n\n
Sensitivity:<\/th>\n86dB (2.83V \/ 1m)<\/td>\n<\/tr>\n
IEC power handling:<\/th>\n200W<\/td>\n<\/tr>\n
Impedance:<\/th>\n6 Ohms<\/td>\n<\/tr>\n
Frequency response (\u00b13dB):<\/th>\n41Hz \u2013 23kHz<\/td>\n<\/tr>\n
Box principle:<\/th>\nBass-reflex rear ported<\/td>\n<\/tr>\n
Crossover:<\/th>\n2-way<\/td>\n<\/tr>\n
Crossover frequency:<\/th>\n2000Hz<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n\n
Specification sheet for Special Forty part 1<\/caption>\n
Crossover typology:<\/th>\n1st order<\/td>\n<\/tr>\n
Woofer:<\/th>\n17cm MSP cone<\/td>\n<\/tr>\n
Tweeter:<\/th>\n28mm Esotar Forty<\/td>\n<\/tr>\n
Weight:<\/th>\n8.1kg \/ 17.9lb<\/td>\n<\/tr>\n
Dimensions (WxHxD):<\/th>\n198 x 360 x 307mm \/ 7.8 x 14.2 x 12.1in<\/td>\n<\/tr>\n
Dimensions with feet\/grille (WxHxD):<\/th>\n198 x 360 x 322mm \/ 7.8 x 14.2 x 12.7in<\/td>\n<\/tr>\n
Finishes\/grilles:<\/th>\nBlack Vine \/ Ebony Wave<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

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