Some time ago, it is very simple to dismantle the millet piston headset, which shows that the sound cavity of the millet piston headset is not as complex as the official website, which is used in the street, which is boiled online. So is this true? In order to understand this mystery, I have edited the article today. Let's take a look at this listening to the song artifact.
What kind of headphones are good headphones? What else do we have to see in addition to sound quality? What else does it do? What is the final sound quality? Why is the earphone cable be easily entangled? In this article we will answer one by one.
First see the specification parameters:
Headphones Type: In-ear
Product color: coffee
Product weight: 11g
Connection line: 1.1 meters
Plug Type: 3.5mm Gold Plated
Line control function: there are 7
Co-core material: lacquered copper wire
Trumpet impedance: 16 ohms
Headphone sensitivity: 94dB
Rated power: 2MW
Frequency: 20-20000Hz
Official price: 99 yuan
Appearance and details:
▼ Front Back: Exquisite Jewelry Box, with a Headphones Winding Manual
▼ Open the headphones inside the cover look very delicate
▼ winder front, back. It feels well in touch
▼ Randomly distribute the three sets of earplugs earphones detail, the earplugs are very soft to the ear, not feel uncomfortable, but also soft than the baby!
▼ Line Control and Headphone Details (Realistic Material, Exquisite Work, Give Features)
▼ earphone part
▼ Take off the clothes to see the effect +
Want to understand the internal structure of the headset, below is a violent dismantling
One: Perfect wire
We all know that a wired headset is a wire, used to connect the front-end (player) and headphones, and the sound of audio data, good headphones should be more useful on the wire, the real material material can guarantee audio data transmission Will not lose, the wire of Xiaomi Presi headset uses a complete pure copper wire, which is more fidelic than headphones such as Gagne, aluminum.
Xiaomi piston headset wire is divided into many levels. In order to better show everyone, choose a piston headset, first cut from the middle of the headphone cable, peel off various wires, the above photo is cut with scissors Look.
Then peel off the outer layer of high-elastic wire, high-elastic wire is blended from cotton + nylon, and only high-end headphones on the market will use such materials to protect the TBE line inside the headphones. What is going to correct here is that this place is not Kevra, Kevra is still in the interior.
After the external high-elastic wire is peeled, you can see the brown layer of the TBE, the color is brown, the TBE material has environmentally friendly, non-toxic, green, lead-free, etc., is also a real material.
After the TBE line layer is peeled off, the four wires are present in front of us, a total of four colors: blue, green, red (white enameled wire), copper, the following is the four wire functional corresponding table:
Millet piston headphones use the design of the headset, the microphone wire, the first line of the headphone wire, does not cut off the heavy welding in the middle, ensuring the fidelity of the audio, so "the sound quality of the microphone is not good" in Xiaomi Pistons Do not be found on the headphones.
Blue, green, red (white enamel wire) is wound by 15 0.04-specific copper wires, and the ground wire is a copper wire that has 30 identical specifications. In the middle of the copper wire of blue, green, red (white enamel line), we can see and wrap together with many white linear materials, this white line is Kevra material, specification 200D, is the most suitable specification .
To better show, we will use Kevla in a dark background, you can clearly see the white lines wrapped in the wire. Kevra is a brand name of a aramid fiber product developed by DuPont, has a high strength, good toughness, high temperature resistance. The role is to let Xiaomi piston headset pull draft, and let headphones wire defense This material is used in a high-end headset.
2: Diamond cutting integrated aluminum alloy sound cavity
One of the most important components of a headset is the sound cavity, which is used to package protection pronunciation units, and let the sound emitted by the pronunciation unit to ensure the sound quality of the headset. There is a relatively cheap plastic material sound in the market, and a few high-end headphones use a metal sound cavity, but the metal sound cavity is usually used, and the two production processes are generally used. One is called press, that is, a pack of iron powder machine tools. It is suppressed, and the other is that a metal plate is squeezed out, which is injection molding. However, these two have an external force, there are several disadvantages: the error is large, and there is stress, because it is not easy to control the error, it will affect the shape of the sound cavity, eventually leading to the sound of each headset.
The millet piston headset uses aluminum alloy sound cavity, diamond cutting a knife, some people will say that metal cuts have nothing, in fact, the metal cutting of the piston headset is used as a whole piece of aluminum, millet piston headset Aluminum is a 5056 material, and the general manufacturer is used by 6 series, and the aluminum alloy of the piston headset is harder.
5056 is aluminum and magnesium alloys; the mechanical properties and characteristics change with strain processing; better stability; anti-corrosion, especially anti-stress corrosion cracking ability, welding, improve body metal and weld strength, reduce welding Crack tendency; good strength in the non-heat treatment alloy; good cutability; appearance after oxidation treatment.
The 6 series is generally domestic aluminum, and the 5 series is aluminum aluminum. 5056 is used in precision machining, the most common use of the optical lens, such as the head. High density is highly deformable to antioxidant corrosion, and the difference of aluminum per ton is 10,000 yuan. The intensity of the 6000 series is generally, and the corrosion is generally, the crystal image is 5056, and the oxygen is 5056, the turningability, the weldability is 5056, heat-heat treatment, mechanical properties change with temperature, and the stability is 5056. Difference.
About the diamond cutting process of Xiaomi piston headset, you can look at the following video, it is entirely shooting in the project.
The surface of the aluminum alloy article manufactured from the factory will be relatively easy to scratch, so Xiaomi piston header will increase the anode treatment in the surface while the factory is exported to ensure aesthetics and abrasion resistance. The anode thickness used by Xiaomi Pistons is 6μ, general headphones It is 3μ, which is double the general headset product, so it is not easy to be scratched.
A whole piece of aluminum is processed into a small molt headphone sound in the lathe, and the error is only 0.01 mm, which is equivalent to cutting a hair wire to dozens. Such a high-precision process allows each piston earphone sound quality, because it is a whole piece of cut, so it does not produce expansion, skewing, etc. after a long time, because the sound is completely, even thermoforms Do not have too much impact on the sound quality of the headphones.
In addition, because the aluminum alloy has high steel, it is hardly generated in the music, so that the piston headset can produce a good bass effect, which is one of the most important highlights of Xiaomi piston headset.
The piston headphone sound cavity is designed with FFMM texture, English is Finger Friendly Mechine Mark, FFMM texture is very delicate, not easy to touch fingerprint, is not easy to be scratched.
The production philosophy of Xiaomi piston headset is that there is no need to use more useless processes, ensuring the ultimate thing to do, the sound cavity as a headset is the most important component, Xiaomi piston headset is absolutely meticulous, aluminum alloy tone The cavity is only used in high-end headphones. From the above, the aluminum alloy metal sound chamber of Xiaomi piston headphones also uses a higher process requirements, ensuring stable sound quality, the FFMM texture of the outer table is more Sublimation in practicality and function.
Three: The story behind the line control
I have seen that friends who have integrated aluminum alloy sound cavity prior to diamonds are not unfamiliar with integrated techniques, and will be related to the same formation and integrated millet piston headset components, but compared to aluminum alloy sound cavity. It is said that the line control of Xiaomi piston headphones makes me fascinating because it also uses aluminum alloy integral forming techniques, and more detailed. The aluminum used by Xiaomi Piston is 5056, and the general manufacturer is used by 6 series, the aluminum alloy of the piston headset is harder.
The following picture is a line-controlled monomer from the factory. It seems that it is like an art. Personally like this metal, including MacBook, old film camera, Me Super, compared to cylindrical The sound cavity of (central air), the manufacturing process of the wire control is more difficult. In addition to smaller, there is a detail is the hollow in the key, we must use the three-way cutter of the import of Germany to cut The shape of the small meter piston headphone is controlled, of course, and the line control has an FFMM texture outside.
In order to ensure aestheticity, the line-controlled volume of Xiaomi piston headphones is very small, which is not thick than the wire, so it will not make the wire control into the time of listening to songs. It is because the line control is small, and it has increased the difficulty of engineering design, and the line control should include a complete circuit board, microphone, buttons, this picture is the unfined millet piston headset line from the factory. Seeing the circuit board inside, the components are very small.
Unlike the general line-controlled headphones, the location of the Xiaomi piston headphone control is not on a single headphone cable, but is designed in two lines of binding sites because Xiaomi piston headphones use audio lines and microphone lines. Separation design, ensuring that the microphone does not affect the sound quality of the headphones, and everyone can refer to the perfect wire before this, and the other is because of the use of such a design, the location of the headphones after the headphones is just below the mouth, we There is no need to pick the microphone when calling.
The metal component taken from the factory has a very intimate detail, all of which are wrapped in black rubber condoms, protecting the components that do not worry into metal in transportation. Ask, it is known that all millet piston headphones will be protected by rubber, really very intimate.
Today, the line control of Xiaomi piston headphones has been deeply analyzed. Don't look at the line control, but the technical content is not low. In addition, we can see the carefulness of Xiaomi from the rubber protective cover, and ensure that everyone will get the hand. It is a perfect headset.
Our other product:
