In the living room of Qiao Zihe's house, there is indeed a set of audio equipment that looks very complicated. What record players, tape players, amplifiers, and so on, and seven or eight speakers of different sizes, placed in all corners of the living room. The nameplates of these devices are all written in foreign languages, English, or Japanese, and you can tell at first glance that they are expensive foreign products.

Qiao Zihe pulled Gao Linqi to the amplifier and said to him, the two of them turned on the stereo and listened for a few minutes, Gao Linqi nodded again and again, Qiao Zihe smiled with satisfaction, beckoned to Qin Ling, and said, "Classmate Qin Ling, let's go to the piano room." ”

After that, he nodded to Qin Hai and Peng Tingting again, and said, "Then please wait patiently in the living room for a while." ”

Qin Hai and Peng Tingting naturally didn't have any opinions, after all, the old man was teaching Qin Ling. After Qiao Zihe and Qin Ling entered the piano room and closed the door, Gao Linqi disassembled the big amplifier, took the multimeter he brought with him and began to measure something, muttering words in his mouth.

Peng Tingting felt bored, so she stepped forward, looked at Gao Linqi's power amplifier, and asked, "Hey, Xiao Gao, what did Professor Qiao tell you just now?" ”

Gao Linqi glanced at her and said, "Didn't you hear it just now?" ”

Peng Tingting said: "I don't understand what you are saying, what do you mean by low frequency, sensitivity, overtones?" ”

Gao Linqi glanced at her and said, "You don't understand music, so it's useless to tell you this." ”

"Gao Linqi, you dare to talk to me like this, you are not afraid that I will sue Sù Xiaohong!" Peng Tingting stood up her eyes, it is estimated that this Xiaohong should be Gao Linqi's goddess, and Peng Tingting's best friend, who can be taken out at any time as a big killer.

Sure enough, Gao Linqi's attitude softened, and he pressed the tape recorder. played a short piece of piano music that I don't know who I don't know, and asked Peng Tingting: "Listen carefully, what do you think of this sound?" ”

Peng Tingting tilted her ears sideways, listening to the stereo sound coming from seven or eight speakers in the entire living room, and nodded her head incessantly: "Well, it's good." This stereo sound is better than the four speakers in our house. ”

Gao Linqi said: "Didn't you hear that the treble part was a little inelastic? The resolution power does not come out of the table. ”

"Resilience?" Peng Tingting's eyes widened, "How can the voice be elastic?" ”

Gao Linqi's eyes were rounder than Peng Tingting's, and he almost felt like they were about to protrude, and he reprimanded: "How can the voice be inelastic? If you listen to this paragraph again, it's more gentle, can you feel the elasticity? ”

Qin Hai was originally sitting next to him and looking through Qiao Zihe's magazine, and when he heard the conversation between the two, he thought it was interesting, so he smiled and said, "Xiao Gao." You are a strong man, you are an audiophile, Tingting and I are not, how can you have such good ears. ”

Gao Linqi was a little embarrassed when he saw Qin Hai interjecting, he sneered and said, "Mr. Qin is right, we enthusiasts are really incurable. If you're not used to hearing good sounds, don't listen to them. Once you're used to it, you won't be able to listen to any music. I think it's all noise. ”

"I've heard that the top audiophiles are particular about what kind of electricity they use to play music." Qin Hai remembered an Internet joke in later generations, so he laughed and teased Gao Linqi.

Gao Linqi was an honest child, he didn't understand what Qin Hai meant, and asked obediently: "I really don't understand what Mr. Qin said." What kind of electricity is used? ”

"For example, the sound of thermal electricity is warm, and the sound base of small electricity is cold, but the resolution is high. In the thermal power, the electric sound quality of the Beilun power plant is the best. Because anthracite is burned. Qin Hai said.

"No......" Gao Linqi thought seriously for more than ten seconds, and then saw the smile on Qin Hai's face, he couldn't help but suddenly realize, and said with a smile: "Mr. Qin is joking with me, I take it seriously." ”

Qin Haidao: "Then what kind of voice you said is elastic or something, how do you understand it?" ”

Gao Linqi said: "This can only be said to be the feeling of the ear, which is indescribable." However,Mr. Qin,You should know,Compared with wooden speakers and plastic speakers,The sound is completely different,The sound of wooden speakers is good,Especially the effect of bass,It is incomparable to plastic speakers,Do you admit it? ”

This statement is within the scope of Qin Hai's knowledge, and people with a little appreciation ability can also hear the difference between plastic speakers and wooden speakers. He nodded and said, "I know this, is it different for different woods?" ”

"Of course." Gao Linqi seemed to have found a bosom friend, and said: "The audio thing is really too exquisite. What material is used for the speaker, as well as what material is used for the diaphragm of the speaker, will affect the sound quality. And this audio cable, do you see it, it's all silver wire, and the general copper wire transmission signal will be distorted, of course you can't hear it, but we people can hear it as soon as we hear it. ”

Hearing the word material, Qin Hai's heart moved, he pointed to the equipment in the room, and asked, "Xiao Gao, I'm afraid the sound of this room is not cheap, right?" ”

"That's for sure." Gao Linqi said: "We people usually say that if you want to harm anyone, let him play audio, high-end audio is a bottomless pit, and you don't have enough money to fill it." Mr. Qin, look at this speaker, imported from Japan, guess what, how much does it cost? ”

Qin Hai and Peng Tingting looked at Gao Linqi's fingers at the same time, and saw that he was referring to a small speaker that was not good-looking, that is, the size of half a brick. Qin Hai knew that since Gao Linqi asked like this, he must have an amazing answer, so he didn't dare to answer immediately. Peng Tingting was a little energetic to break the jar, and when she opened her mouth, she said: "Such a small speaker, is it difficult to ask for 200 yuan?" ”

"Mr. Qin, what do you say?" Gao Linqi asked Qin Hai.

Qin Hai shook his head and said, "I can't guess, but I think it may be more than 200 yuan, right?" ”

"Multiply it by 20, a full 4,000 yuan, this is still obtained by relying on the relationship." Gao Linqi said proudly.

"4,000 yuan! Oops...... Tut-tut, just such a small thing......" Peng Tingting screamed as if she was being trampled on, shaking her head, the monthly salary of an associate professor back then was more than 100 yuan, and such a small speaker cost 4,000 yuan, which was really unacceptable.

Qin Hai was also a little surprised in his heart, but he was also a person who had seen a little bit of the world, and he knew that the value of some things in this world really could not be seen from the outside. He asked Gao Linqi: "Xiao Gao, you said such a speaker, how can it be so expensive?" What is expensive. ”

"Something, that's a lot." Gao Linqi saw that Qin Hai and Peng Tingting were both shocked by themselves, and couldn't help but feel self-conscious, he pointed to the speaker and said: "The speaker in this speaker is the latest Japanese product." The diaphragm it uses is not the metal diaphragm used on the general speaker, nor is it an ordinary PP plastic diaphragm, it is a new material called Texc, this material has low density, good rigidity, and appropriate damping. ”

"Is there a domestic version of this diaphragm?" Qin Hai asked.

"Domestic?" Gao Linqi pursed his mouth as if he had eaten a bitter gourd, "How can there be domestic ones, how can there be domestic materials for high-end audio now, they are all imported from foreign countries." ”

"Why can't domestic materials work?" Qin Hai grabbed Gao Linqi's words and delved deeper.

Gao Linqi said: "How do I know, anyway, the speaker with a domestic diaphragm can't be heard at all, and I can hear the imported diaphragm as soon as I hear it. ”

Qin Haidao: "Xiao Gao, you just said that the diaphragm material requires low density, high rigidity, and moderate damping, what are the other requirements?" ”

"There are a lot of these, for example, the instantaneous response speed should be fast, and the high frequency should not resonate, so there is a lot of attention." Gao Linqi is a good teacher.

Qin Hai smiled slightly and said, "Xiao Gao, what you said can actually be transformed into some requirements for material design, and these requirements can be achieved by appropriately adjusting the material formula." How about it, I'm going to find someone to develop first-class diaphragm materials, as well as speaker materials, and hire you as an appraiser, you just need to tell us if this material works, which material works best. We have joined forces to create a world-class domestic diaphragm, are you interested? ”

"You?" Gao Linqi frowned, feeling that Qin Hai was a little overwhelmed. In his opinion, it is good that domestic companies can make international second- and third-rate diaphragm materials, and what is world-class. Is it possible for any person to make something world-class?

Peng Tingting was firmly on the side of the boss at this time, she knocked on Gao Linqi's head and said, "Xiao Gao, you look down on me, but you can't look down on me Mr. Qin." Do you know that the thermal spraying machine designed by Mr. Qin, as well as the ceramic knife, are all world-class, and foreigners come to order. What Mr. Qin said that what can be done, it will definitely be able to be made. ”

"What is a thermal sprayer for?" Gao Linqi asked.

Qin Haidao: "It's not a great thing, it's used to paint the surface of the machine." ”

"Oh, the spray-painted ......," Gao Linqi replied with some disdain.

Qin Hai continued: "However, our thermal spraying machine is the world's first, so it entered the international market, and the sales last year were not very good, and a total of more than 200 million US dollars were sold." ”

"Two ...... Hundred million! Gao Linqi was almost frightened and fell on his heels, as a sound enthusiast, he has seen a lot of rich people, millions, tens of millions of people, and he is also quite respectful, because he can fix the stereo in these people's homes. But at first glance, when he heard the figure of hundreds of millions, and it corresponded to the dollar, his self-confidence finally collapsed.

"Qin ...... Mr. Qin, what you said is true? Gao Linqi asked.

"What do you mean?" Qin Hai asked rhetorically.

Gao Linqi originally wanted to ask whether the so-called more than 200 million US dollars was true, but when the words came to his lips, he changed his words again and said: "What you just said about making world-class diaphragm materials, is it true?" (To be continued......)

PS: Shoulder pain, let's make a change first, and strive to make up for it tomorrow and the day after tomorrow.