Accuton Cell Serie specifications

Category : Candidate for deletion

The Accuton Cell series includes very high-quality tweeters, midrange and woofers. As a special feature, during the development of all chassis, for the first time a manufacturer made sure that the acoustic centers of all chassis were designed identically. This led to the very unusual construction of bass domes, especially for the woofers. Accordingly, a time-coherent reproduction can be achieved despite a straight vertical baffle. The suggestion for this design specification came from Michael Weidlich, Myro company, because the housing designs of timely loudspeakers can be simplified when using these chassis. The chassis are used accordingly in the Myro Amur series. Michael Weidlich about Dirk Vaehsen, developer at Thiel: "I was in his ears with my requirements for a time/ signal correct reproduction. Our ideas in this regard are congruent."

The distortion level of the chassis is also extremely low. The general requirements for a loudspeaker diaphragm are as follows: It should essentially be light, stiff and with high internal damping. Since these requirements contradict each other constructively, all conventional membrane materials are highly susceptible to compromise and can be described as unsatisfactory with respect to one or even two of the mentioned requirements. The special material from Accuton now makes it possible to largely meet all three of the above requirements. Suitable selection and processing of the aluminum foil allows very thin (up to less than 50 µm) and thus very light molded parts. Due to the extreme hardness (Mohs hardness 9) of the material, you get very dimensionally stable membranes, which are only surpassed in their mass / stiffness ratio by beryllium (highly toxic and not used) and CVD diamond (also used in high-quality ACCUTON tweeters and midrange drivers).

The comparatively high internal damping of the ceramic membrane is guaranteed by the special production process. As the oxidation progresses from both sides towards the center of the material, an interface is formed in the center of the membrane. This ultimately consists of two intermeshed partial membranes that dampen each other. The above-mentioned pore formation also leads to the fact that further interfaces are created transversely thereto. This foam-like microstructure has a significantly better internal damping than, for example, a sintered ceramic part or those countless counterfeits called "ceramic membrane", which only have a more or less coated surface and essentially retain the properties of the base material.

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Accuton Cell Serie