In the living room of Qiao Zihe's house, there is indeed a set of audio equipment that looks very complicated... read the latest and most complete novels: record players, tape players, amplifiers, etc., as well as seven or eight speakers of different sizes, placed
In every corner of the living room, the nameplates of these devices are all written in foreign languages, either English or Japanese. You can tell at a glance that they are expensive imported products.
Qiao Zihe pulled Gao Linqi to the amplifier and chattered to him. The two turned on the stereo and listened for a few minutes. Gao Linqi nodded repeatedly. Qiao Zihe smiled with satisfaction and said to Qin Ling.
He waved and said, "Classmate Qin Ling, let's go to the piano room."
After saying that, he nodded to Qin Hai and Peng Tingting and said, "Then please wait patiently in the living room for a while."
Naturally, Qin Hai and Peng Tingting would not have any objections. 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 took apart the large power amplifier and took the
The multimeter started to measure something, and he was still mumbling something.
Peng Tingting felt bored, so she moved forward to see Gao Linqi repairing the 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 talking about. What do you mean by low frequency, sense, and overtones?"
Gao Linqi rolled his eyes 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 tell Xiaohong!" Peng Tingting raised her eyes. It is estimated that this Xiaohong should be Gao Linqi's goddess and Peng Tingting's best friend. She can be used as a girlfriend at any time.
A big killer.
Sure enough, Gao Linqi's attitude softened. He turned on the recorder, played a short piece of piano music by an unknown person, and asked Peng Tingting: "Listen carefully, what do you think of the sound?"
Peng Tingting tilted her ears and listened to the stereo sound coming from the seven or eight speakers in the entire living room. She kept nodding and said: "Well, it sounds good. This stereo sound is better than the four speakers we have at home."
Gao Linqi said: "Didn't you hear that the treble part lacks elasticity? The resolution is not shown."
"Elastic?" Peng Tingting's eyes widened, "How can the voice be elastic?"
Gao Linqi's eyes were rounder than Peng Tingting's, almost bulging out. He scolded: "How can the voice be inelastic? Listen to this paragraph again. It is relatively gentle. You can feel the elasticity.
?"
Qin Hai was sitting nearby and flipping through Qiao Zihe's magazines. When he heard the conversation between the two, he found it interesting and said with a smile: "Xiao Gao, you are forcing yourself to do something difficult. You are an audiophile, and I
Tingting doesn't have such a good ear like you."
Seeing Qin Hai interjecting, Gao Linqi was a little embarrassed. He smiled and said: "Mr. Qin is right, we audiophiles are really hopeless. If you are not used to listening to good speakers, then don't listen. After you get used to it,
, you can’t listen to any music anymore. It’s just noise.”
"I heard that the top audiophiles are particular about what kind of electricity they use to play music." Qin Hai remembered an Internet joke from later generations and teased Gao Linqi with a smile.
Gao Linqi was an honest boy and didn't understand what Qin Hai meant, so he asked obediently: "I really don't understand what Mr. Qin said. What does it mean to use what kind of electricity?"
"For example, the sound of thermal power is warmer, while the sound base of small power is colder, but the resolution is high. Among thermal power, the sound quality of Beilun Power Plant is the best because it burns anthracite." Qin Hai said.
"No way..." Gao Linqi thought seriously for more than ten seconds. When he saw the smile on Qin Hai's face, he suddenly realized and said with a smile: "Mr. Qin is joking with me, and I take it seriously."
Qin Haidao: "Then what you said about the elasticity of the voice, how do you understand it?"
Gao Linqi said: "This can only be said to be the feeling of the ears, which can be imagined but cannot be expressed in words. However, Mr. Qin, you should know that the sound of wooden speakers is completely different from that of plastic speakers. Wooden speakers have completely different sounds.
The sound reproduction of the speakers is good, especially the bass effect, which is unmatched by plastic speakers, do you admit it?"
This statement is within the scope of Qin Hai's knowledge. People with a little appreciation can also hear the difference between plastic speakers and wooden speakers. He nodded and said: "I know this, is it different?"
The effect of wood is also different?”
"Of course." Gao Linqi said, as if he had found a close friend: "Audio is really very particular. What materials are used for the speakers and what materials are used for the diaphragms of the speakers will all affect the sound quality. And this audio
Did you see the wires? They are all silver wires. Ordinary copper wires will distort the signals transmitted by them. Of course you can't hear them, but people like us can hear them right away."
Hearing the word "material", Qin Hai's mind moved. He pointed to the equipment in the room and asked: "Xiao Gao, I'm afraid the speakers in this room are not cheap, right?"
"That's for sure." Gao Linqi said: "We people usually say that if you want to harm anyone, let him play with the stereo. High-end audio is a bottomless pit. No amount of money is enough to fill it in. Mr. Qin, you
Look at this speaker, it’s imported from Japan, guess how much it costs?”
Qin Hai and Peng Tingting looked at Gao Linqi's finger at the same time, and saw that he was pointing to a small speaker with an inconspicuous appearance, which was about the size of half a brick. Qin Hai knew that since Gao Linqi asked this, he must have an amazing answer.
Therefore, she did not dare to answer immediately. Peng Tingting was a little bit eager to break the jar, so she opened her mouth and said: "Does such a small speaker cost 200 yuan?"
"Mr. Qin, what do you think?" Gao Linqi asked Qin Hai.
Qin Hai shook his head and said, "I can't guess, but I think it might be more than 200 yuan, right?"
"Multiply by 20, it's a total of 4,000 yuan. I got it through my connections." Gao Linqi said proudly.
"4,000 yuan! Ouch... tsk tsk tsk, just such a little thing..." Peng Tingting screamed as if her feet were being stepped on, shaking her head. The monthly salary of an associate professor back then was only more than 100 yuan.
Such a small speaker costs 4,000 yuan, which is really unacceptable.
Qin Hai was also a little surprised, but he was someone who had seen a little bit of the world and knew that the value of some things in this world could not be seen from the outside. He asked Gao Linqi: "Xiao Gao, what do you think of such a speaker?"
, how can it be so expensive? What is so expensive?"
"What the hell, that's a lot." Gao Linqi saw that both Qin Hai and Peng Tingting were shocked by him, and couldn't help but feel proud. He pointed at the speaker and said: "The speaker in this speaker is the latest product from Japan.
The diaphragm it uses is not the metal diaphragm used in ordinary speakers, nor the ordinary PP plastic diaphragm. It is a new material called texc. This material has low density, good rigidity, and appropriate damping. It is such a small piece.
The diaphragm alone is worth thousands of dollars."
"Is this kind of diaphragm made in China?" Qin Hai asked.
"Domestic?" Gao Linqi curled his lips as if he had eaten a bitter gourd, "How can it be made in China? There are no domestic materials for high-end speakers nowadays. They are all imported from foreign countries."
"Why can't domestic materials work?" Qin Hai caught Gao Linqi's words and went deeper.
Gao Linqi said: "How do I know? Anyway, it's impossible to listen to a speaker with a domestic diaphragm. I can hear the imported diaphragm as soon as I listen to it. You get what you pay for, and people are more expensive than others."
Qin Haidao: "Xiao Gao, you just said that the diaphragm material requires low density, high rigidity, and moderate damping. What other requirements are there?"
"This is more important. For example, the instantaneous response speed must be fast, and high frequencies must not resonate. There are many things to pay attention to." Gao Linqi is a bit like a teacher.
Qin Hai smiled slightly and said: "Xiao Gao, what you said can actually be translated into some requirements for material design. These requirements can be achieved by appropriately adjusting the material formula. How about I find someone to develop a first-class vibrator?
Diaphragm materials, as well as speaker materials, if we hire you as an appraiser, you only need to tell us whether this material is good or not, and which material has the best effect. We will work together to create a world-class domestic diaphragm, are you interested?"
"You?" Gao Linqi frowned, feeling that Qin Hai was overestimating his capabilities. In his opinion, if domestic companies can produce diaphragm materials that are second- or third-rate in the world, that's pretty good. How can they be said to be world-class? World-class.
Can just anyone make something like this?
Peng Tingting stood firmly on the boss's side at this time. She knocked on Gao Linqi's head and said: "Xiao Gao, you can look down on me, but you can't look down on me, Mr. Qin. Do you know that the thermal spray machine designed by our Mr. Qin
, and ceramic knives, they are all top-notch in the world, and foreigners come to place orders. Whatever Mr. Qin says we can make, we can definitely make."
"What is the thermal spray machine used for?" Gao Linqi asked.
Qin Haidao: "It's not a great thing, it's just used to spray paint on the surface of the machine."
"Oh, it's spray-painted..." Gao Linqi responded with some disdain.
Qin Hai continued: "However, our thermal spray machine is the first in the world, so it has entered the international market. Last year, the sales were not very good. The total sales were only more than 200 million US dollars."
"Two... hundred million!" Gao Linqi was so frightened that he almost fell over. As an audiophile, he had met many rich people, people with a net worth of millions or tens of millions, and they were also quite respectful to him.
, because he was able to repair the speakers in these people's homes. But when he first heard figures like hundreds of millions, and the corresponding numbers were US dollars, his confidence finally collapsed.
"Qin...Mr. Qin, are you telling the truth?" Gao Linqi asked.
"What did you mean?" Qin Hai asked.
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 and said: "What you just said is to make world-class diaphragm materials, is it true?
"(To be continued...)
ps: My shoulder hurts, so I’ll post an update first, and try to make up for it tomorrow and the day after tomorrow.