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Product Description
Perfect sound, perfect shape
Like the Cassiano and the Arabba of our new series, the Vescova carries the famous German Accuton drive-units with their unique ceramic diaphragms. Ceramic drivers are said to be behind a revolution in loudspeaker design.
Ceramics – a unique diaphragm material
In the long history of HiFi there have always been superlatives and rumours about miraculous properties of diaphragm materials. The first paper cones were followed by plastics with very imaginative sounding names. Then once again paper, this time with secret coatings, was brought up.
After that the era of kevlar and carbonfibre diaphragms arose, again once again followed by paper cones which eventually were replaced and left behind by metal diaphragms. This went on till new paper cones eliminated metal again. It was risky for a company to count on trendy materials only based on fashion and not based on physical properties.
Basically all materials face the same problem to unite contradictionary properties in one single material. Stiff and hard materials are ideal for bass response but they resonate in the mid-frequencies and direct the sound at too low frequencies.
On the other hand soft materials lack in a hard punch in the bass region but sound natural and smooth in the midrange because they only have low resonances and low distortions. Because of this they always sound a bit boring and cannot show the high resolution a hard material provide. Hard materials colorate the sound in the mids because of cone breakup.
It is always the same thing in physics: you have to find the best compromise of all diaphragm properties. Because of this loudspeaker designers started to built three-way-speakers with different materials for all three frequency regions. Now they truly had a three-way speaker: every driver separately did its job perfectly but all three together did not harmonize at all. There was no homogeneity anymore in music. Again the question arose: one material for all frequencies?
KeramikmitteltönerThe woofer-midrange driver of the Vescova:
Due to its hard aluminum dye-cast basket this driver offers perfect stability for the huge magnet and excellent sound transmission by the thin bars.
Only taking the best
Parallel to all up-to-date materials Accuton in Germany developed a method for manufaturing loudspeaker diaphragms made of ceramics – small ones for tweeters, medium-sized for midrange drivers and big cones for woofers. One material for all the drivers. Again: does this result in a breakthrough?
Ceramics is a hard and stiff material but it is lighter than metal and it does not feature the big problems of distortion and resonances that plagues metal. The ceramics’ resonances are at higher frequencies than resonances of metal but still they have to be removed. Otherwise ceramic diaphragms sound harsh and scratchy.
How can these resonances be eliminated? Even with frequency crossovers of more than 24 dB/octave they still affect the sound. Now our time had come! As we are using very steep filters in the frequency crossovers of our existing speakers for many years now we already had the solution working. With a steepness of more than 50 dB/octave our crossovers suppress the high frequency resonances of the midrange driver perfectly as can be shown by distortion measurements (see e.g. “Stereoplay (Germany)” 01/2006).
Because of these facts ceramics are for us the ultimate material. We can handle it and bring out all its benefits resulting in music reproduction at the highest level. The ceramic-driven speakers sound totally unspectacular with a warm timbre but despite that with an unbelievable resolution, dynamics and spaciousness. It is music listening without stress but with a grabbing intensity and definition. A real Joy of Listening!
KeramikmitteltönerThe Vescova’s view from the bottom:
The Vescova, too, offers you our famous room equalization system. By a gold-plated bridge connector you can set up the loudness of the bass to your room’s acoustical properties. The vent of the bassreflex enclosure faces down thus exciting your listening-room very evenly. The spikes decouple the cabinet from exciting the floor leading to a stressless boomfree bass response.
Like the Cassiano and the Arabba of our new series, the Vescova carries the famous German Accuton drive-units with their unique ceramic diaphragms. Ceramic drivers are said to be behind a revolution in loudspeaker design.
Ceramics – a unique diaphragm material
In the long history of HiFi there have always been superlatives and rumours about miraculous properties of diaphragm materials. The first paper cones were followed by plastics with very imaginative sounding names. Then once again paper, this time with secret coatings, was brought up.
After that the era of kevlar and carbonfibre diaphragms arose, again once again followed by paper cones which eventually were replaced and left behind by metal diaphragms. This went on till new paper cones eliminated metal again. It was risky for a company to count on trendy materials only based on fashion and not based on physical properties.
Basically all materials face the same problem to unite contradictionary properties in one single material. Stiff and hard materials are ideal for bass response but they resonate in the mid-frequencies and direct the sound at too low frequencies.
On the other hand soft materials lack in a hard punch in the bass region but sound natural and smooth in the midrange because they only have low resonances and low distortions. Because of this they always sound a bit boring and cannot show the high resolution a hard material provide. Hard materials colorate the sound in the mids because of cone breakup.
It is always the same thing in physics: you have to find the best compromise of all diaphragm properties. Because of this loudspeaker designers started to built three-way-speakers with different materials for all three frequency regions. Now they truly had a three-way speaker: every driver separately did its job perfectly but all three together did not harmonize at all. There was no homogeneity anymore in music. Again the question arose: one material for all frequencies?
KeramikmitteltönerThe woofer-midrange driver of the Vescova:
Due to its hard aluminum dye-cast basket this driver offers perfect stability for the huge magnet and excellent sound transmission by the thin bars.
Only taking the best
Parallel to all up-to-date materials Accuton in Germany developed a method for manufaturing loudspeaker diaphragms made of ceramics – small ones for tweeters, medium-sized for midrange drivers and big cones for woofers. One material for all the drivers. Again: does this result in a breakthrough?
Ceramics is a hard and stiff material but it is lighter than metal and it does not feature the big problems of distortion and resonances that plagues metal. The ceramics’ resonances are at higher frequencies than resonances of metal but still they have to be removed. Otherwise ceramic diaphragms sound harsh and scratchy.
How can these resonances be eliminated? Even with frequency crossovers of more than 24 dB/octave they still affect the sound. Now our time had come! As we are using very steep filters in the frequency crossovers of our existing speakers for many years now we already had the solution working. With a steepness of more than 50 dB/octave our crossovers suppress the high frequency resonances of the midrange driver perfectly as can be shown by distortion measurements (see e.g. “Stereoplay (Germany)” 01/2006).
Because of these facts ceramics are for us the ultimate material. We can handle it and bring out all its benefits resulting in music reproduction at the highest level. The ceramic-driven speakers sound totally unspectacular with a warm timbre but despite that with an unbelievable resolution, dynamics and spaciousness. It is music listening without stress but with a grabbing intensity and definition. A real Joy of Listening!
KeramikmitteltönerThe Vescova’s view from the bottom:
The Vescova, too, offers you our famous room equalization system. By a gold-plated bridge connector you can set up the loudness of the bass to your room’s acoustical properties. The vent of the bassreflex enclosure faces down thus exciting your listening-room very evenly. The spikes decouple the cabinet from exciting the floor leading to a stressless boomfree bass response.