The successful equation of the horn Elac masters the key to the design of the unit

[Audio Network Information]

From the single design, Elac mastered the source of the design of the speaker, equal to the ever-changing product design capabilities. Under the leadership of the factory manager Thomas, even if the appearance looks exactly the same, the key technical key is different, so Elac can design the "best match" monomer for each speaker box. And let us continue to see how the director Thomas elaborated.

The BS 312 bookshelf speakers exhibited at the 2013 Munich Audio Show, although the appearance is very similar to the BS 310, the internal components are very different.

The tiny details of the single component of the speaker will affect the performance of the single unit.

Well, when the speaker unit is taken apart, it is the diaphragm, the suspension, the elastic wave, the voice coil, the magnet, and the frame. The Elac monomer is also composed of these key components, just like all moving coils. However, the details of the details are very careful. For example, the BS 312, which debuted at the 2013 Munich Audio Show, is the follow-up model of the BS 310. Thomas said that the bookshelf speakers have the same volume, and the mid-bass used in the same size is the same. Like, but the content is very different. Thomas said that the speaker unit is like this. This is a technology that has existed for nearly a hundred years, but the more carefully studied, the more details can be found that can be modified.

Although it looks the same size, which small details change, can the BS 312 be more powerful than the BS 310? Thomas cited many examples. For example, the BS 312's mid-woofer frame uses Polyamid instead of the usual ABS steel. To demonstrate how sturdy Polyamid is, Thomas puts the Polyamid frame directly on the ground and steps on it. He said that Polyamid has a harder texture. If it is ABS steel, the tread has cracked because the weight of the Polyamid material itself exceeds 200 kilograms, far stronger than ABS, the strength of the frame itself has increased several times, both strong and durable.

On the left is the BS 310 on the right side of the BS 310. The biggest difference between the two is different from the JET. The suspension and the elastic wave of the bass unit in the BS 312 are also newly improved.

The Polyamid single frame used in the BS 312 is not only more rigid, but also designed to help change the sound. Thomas said that because the Polyamid frame is more rigid, the frame does not need to be "sturdy". In other words, the bass is used in the BS 312. The frame size is finer. What are the benefits of thinning the frame? The thinner frame allows the magnet engine to have a larger opening area on the side and a higher air circulation efficiency, which helps the voice coil to dissipate better. Because of the higher heat dissipation efficiency, it is not easy to overheat the voice coil when operating the unit alone. The ability to withstand power is higher.

The medium woofer frame of the BS 312 uses Polyamid material instead of the general ABS plastic steel. The Polyamid can bear more than 200 kg of gravity, so it is more rigid, making the frame size of the BS 312 thinner and contributing to the side opening area of ​​the magnet engine. Larger, more efficient air circulation, helping the voice coil to dissipate better.

Thomas then turned the subject to the overhang. He put the BS 312 and the bass subwoofer of the BS 310 together. Please take a closer look at the hanging edge. Although the size of the two singles is the same, the thickness of the hanging edge of the BS 312 is increased. It feels more flexible. Thomas said that when the piston is moving, the distance between the front and rear movement is related to the thickness of the suspension. When the mid-bass design of the BS 312 is designed, the thickness of the suspension is deliberately increased, so that the distance between the diaphragm and the front can be larger. The energy of the air is stronger. What is the difference between these two basses? Thomas said about an increase of 1dB. Huh? Looks nothing great? Sorry, dB is a logarithmic relationship. If it is increased by 1dB, it almost doubles. If we simply imagine that the maximum sound pressure that the new BS 312 can emit is about twice that of BS 310, take two pairs of BS 310. To push, you can be "loud" like the BS 312. You said that the BS 312 is not a "performance leap forward"?

The details have not been finished! Thomas took out a few pieces of horn-elastic material. He said that the BS 312 was the first speaker to use Boomer to replace the Nomex material. What is the power of Nomex materials? Simply put, you don't need to "make", the horn can get into the best state at once.

Two different elastic waves, the Elac is the latest generation of elastic waves on the right, the materials used are different, BS 312 uses Nomex material as the elastic wave, this material can be optimized without the mature program.

Breaking the physical balance between the hanging edge of the horn and the elastic wave

Ok, let's talk about the "maturing" of the horn. Thomas thinks it is the dynamic balance between the hanging edge and the elastic wave of the horn. How to say? The horn of the horn is not the same as the physical characteristics of the elastic wave. When the horn is new, the material of the hanging material is soft. As the time is used longer, the material of the hanging edge will gradually become harder, but the object of the horn is elastic. The opposite is true, because the general speaker uses cotton elastic waves and the surface is coated with a coating. Therefore, when the speaker is new, the elastic wave is hard. Because the surface coating is new, the hardness is high, but as the use time increases, the elastic wave It will become harder and harder, so the so-called horn "mating" of the audio fans is the dynamic balance between the two "physical changes" when the outer suspension slowly hardens and the internal elastic waves soften. Thomas said that the change of this physical phenomenon usually takes many years. Some audio fans want to get into the situation in order to quickly mature, and want to enter the situation immediately, but Thomas does not recommend that the speaker be fiercely driven from the beginning, because of such "physical dynamics." Balance needs to be matured slowly, sometimes it is not fast, and it may damage the monomer.

BS 312 section view

However, the mid-woofer of BS 312 uses Nomex elastic wave, because the characteristics of Nomex itself are already rigid enough, so the surface does not need to be coated with a strengthening coating, and the characteristics of Nomex fiber are unchanged for a long time, so the elastic wave itself The "physical dynamic balance" feature between the overhangs is broken. In other words, the mid-bass used in the BS 312 does not need to be "cooked". The physical properties of the elastic wave itself are already ideal. You only need to open the box. On the system, you can enjoy the music.

Strange, how have I been talking about the bass subwoofer of the BS 312, as if the pair of speakers do not need high pitch? Of course, but that is Elac's exclusive JET 5 pneumatic tweeter, we have a special introduction. However, with a small mid-bass unit, Thomas, the director, talked about so many small and small considerations. These changes are not completed in one day, but in the development of Elac over the years, one by one to find out the small problems in design, one by one to overcome. Is Elac's monomer perfect? Sorry, if it's perfect, Elac's R&D team is probably unemployed, but they know a lot of Know-How of the speaker, and the Germans are not satisfied with it, and they try their best to find out their own designs. What small places can be improved, so Elac accumulates the successful equations for their design speakers! The answer is hidden in the nuances that you can't see.

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