I got the HD50 on November 6th, three days before the official release. The first impression, I think that is a very "hard" design, just by appearance technology, selling a 699 should not be a problem. After a day, I went home on the road and listened. I was determined to "add" a little and sell 999.
I haven't thought about it, it can sell more expensive, and the price of the headphones is really rare. But at the moment, Chinese Internet companies are not all playing the role of "price spoilers"? From the flat-panel TV to the air purifier... I never thought that its price was locked at 399 after 3 days! I couldn’t help but ask myself if I heard the news: "Really?" Is true, Needless to say 3 times.
This is an era of paying attention to "feelings", not only in words, but also in every aspect.
Now think about it, the HD50 fits perfectly into the aesthetics of urban young people from the packaging: it is a minimalist and light luxury route. The elegant gray tone tray, simple lines and pictures, will display all the information you want to express. Inside, the translucent plastic cover is printed with the Meizu-specific slogan: “For the lovely ones Designed by Meizuâ€, you can think of it as a compliment to the user, or as an encouragement to the self. .
"The flagship of the year" HD50. The earphones on the front of the carton are processed by lamination and have a slight three-dimensional effect.
The back is a parametric and frequency response graph with simple lines to create a refreshing impression.
Everything is designed from a practical point of view, but it also fits its positioning. Black hard waterproof storage box to help you store your headphones and carry them with you. When opened, you see the HD50 that is compactly folded. The color matching of the white headband and the metal earmuffs is a kind of match that makes people look comfortable. Accessories include a separate line of headphones with a line control, a 3.5/6.3mm conversion plug and an aerial plug (which can be used to listen to onboard broadcasts).
"Family portrait", including silver and black headphones, adapters and instructions. The tip of the eye may feel that it is "like" to a certain headset on B&O Play. I think there are two reasons: 1. The shape of the headphones, there are mature ideas, and the mutual communication is inevitable; Chen Aimin led the Meizu headphone design team from Japan Fengda, the latter was B&O, Beats The earphone brands such as Sennheiser, AKG, and Iron Triangle have done ODM (Development, Design, and Manufacturing)... In fact, don't you think that B&O and Beats products also have "likeness"?
Appearance: Comfort and "force"
It is the "first work" (the first one) of Meizu headphones, and the HD50 can be understood only with black and white colors. This is like buying a bag, and when you are dazzled, you will earn the "classic", and the chance of error will be greatly reduced. The evaluation is made in black, and the individual feels that it is suitable for both young and old. As for the white model (because it is an engineering prototype, it does not put a picture), it is more suitable for female users, and the PU protein leather headband and ear pad are very easy to clean, do not have to worry about future maintenance problems.
The cover material of the earphones evolved from rubber, cloth (goose down), leather, and artificial leather. They have their own advantages and disadvantages, mainly reflected in the comfort, breathability, texture and cost of the ear. With the experience of Chen Aimin's team in the industry for many years, I believe this is the decision after repeated comparisons: PU protein leather not only has the cost advantage, but also the best choice for giving the skin a good touch. At the same time, it is breathable and stretch resistant. Excellent in both ability and wear resistance.
Continuing the “metal trend†that Meizu emphasizes on smartphones, the HD50 uses a large amount of metal in earmuffs, headbands and shafts. After I learned the exact price of it, I can describe it as "awe-inspiring". Recall that in the early years, those who used the finished steel strip to make the headband of the earphones, which one did not ask you to accept two or three thousand? Compared with traditional metal casting, the SUS powder metallurgy process and cutting process selected by Meizu can eliminate the coarse and uneven casting structure and realize the detailed process of integral molding.
Intuitive observation will reveal that all metal parts are like a single body, and the hand feels smooth and smooth. Especially at the cross shaft, a three-fold multi-angle folding of 135° × 95° × 15° is realized, in one go. MEIZU's logo is made by CNC engraving and character laser (laser) technology, which expresses the unique color and texture of metal.
Logo made by CNC engraving and character laser technology
Cross shaft for three-fold multi-angle folding
Multi-level adjustment at the head beam, good damping when stretching
If you have a little understanding of the manufacturing industry, you should understand the development of metal molds, behind which are huge capital investment and high expectations for production. Many earphones choose a plastic case, and light weight is just an excuse (now metal materials can also be made very light), the key is that it does not have such a large shipment to support. A set of molds, the cost is spread to 10,000 and 100,000, which is completely different.
Technical articles: thin and tough
I tried to spy on the moving coil unit of the HD50. It didn't work: the sound-proof dust cloth with the words L (left channel) and R (right channel) was covered, and it was covered.
L or R is printed directly on the sound-permeable dust cloth, but it is intuitive. The inner lining is a 40mm caliber sounding unit diaphragm and sound chamber, which determines the sound quality of the headphones and the tone direction. Among them, the diaphragm is the most important. The moving coil unit used in headphones and speakers has not had a breakthrough technological change in recent decades. The reason why we can hear different styles of sound depends on the subtle differences between engineers in the use of diaphragm materials and their own tuning skills. This is a very interesting science.
As a science student, let me tell you: the lighter the diaphragm, the higher the vibration frequency, the higher the frequency extension; at the same time, in order to emit a strong low frequency, the diaphragm needs to push enough air, itself It must be hard and resilient. Yes, this is a contradiction!
Meizu used the Free-edge diaphragm design to solve this problem. The ultra-fine biofiber diaphragm from Japan is light (with excellent high-frequency response) and rigid (strongly driven air). Relatively common paper-based or metal diaphragms have better resolution. Of course, the PU protein leather + PEEK three-layer composite film edge earmuffs can help it together to create a warm and beautiful vocal and thick, solid low frequency.
The back of the diaphragm, that is, the area covered by the entire earmuff, actually uses a dual-sound cavity design: with the principle of airflow compensation, the front cavity can enhance the intermediate frequency sound pressure and vocal clarity; the rear cavity is similar to the bass reflection design of the speaker, let The sense of volume after the low frequency superposition is doubled. This wave of "combination boxing" can be said to be considerate.
Dual-sonic cavity design, the intermediate frequency is compensated, and the low-frequency sense is multiplied
Sound quality: the absolute value of the sound
For more than a week, I used Sony PCM-D50 and WAV format music as the main force, and I used the iPhone 6 and online QQ music to enjoy it, and completed the audition of Meizu HD50.
Take Lin Yilian's "Heaven and Earth Wildflowers 1993 Love Red Pavilion" as an example. Opening the sound will give me a wide sound field and create a feeling of being on the scene. I like the recording of this album. Regardless of the sense of space and the atmosphere, I usually use my own closed monitors in the subway to fully indulge in the music. Pricing is only 1/6 of the Meizu HD50 can give me a similar effect.
On the rendering of vocals, HD50 showed a more active "attitude". It may not be neutral enough, but it shows an unprecedented affinity. For a pair of Hi-Fi headphones that take the popular route, this is a clever design: while maintaining the accuracy of the tone, it slightly highlights the saturation and sound pressure of the human voice (I believe that the team of Chen Aimin can also call out the sound of the studio monitor. Going, but it may not be popular).
Low frequency and dynamic performance can be described as “satisfactoryâ€: the low frequency is thick and accurate, the transient response is fast, and it does not adversely affect the instrument's pitch and vocals (such as low frequency and heavy weight, but the sound becomes turbid. ).
This is the product that is not inferior to the international brand thousand-yuan headphones in terms of sound quality. Although it still has a long way to go from perfection, such as the focus and positioning of the sound, the characterization of high-frequency details... As for the type of music that is applicable, I think it is popular, jazz, rock, or light classical. Basically, it also meets the needs of most people.
The 32Ω impedance and the sensitivity of 103dB indicate that you can make the HD50 have good music performance even if you use your mobile phone as a source. In the process of comparing A/B with PCM-D50 and iPhone 6, I want to say that there is no problem in terms of driving force. However, because the source of the two is different, it brings a difference in hearing. In contrast, the latter's music is less detailed, but for non-professional users, it is convenient, if you just enjoy it on the commuter, why not?
As far as personal preference is concerned, I can't accept the pain of the earplugs when I put it in my ear, even if it has the advantage of being portable and direct. Therefore, I recommend users who have never used headphones or used earplugs to try the Meizu HD50. It can avoid the effects of “canned music†and bring you close to the spot. Rich reflections can create a wider music atmosphere. Of course, all of this is built on comfortable wearing: streamlined, ergonomic design, even if it is used for a long time, it will not become cumbersome; freely connected shaft, easy to fit the auricle, even when stored, it is convenient Turn the angle.
What do you do most when you are holding a mobile phone? WeChat, Weibo, reading, maps, music, movies and games. If it is the latter, you can't do without headphones, a pair of headphones with superior sound quality, comfortable wearing, beautiful appearance and invincible price/performance ratio. From this perspective, is the Meizu HD50 not exactly what you want?
Float level gauge is a liquid level measuring instrument which works based on the principle of constant buoyancy in buoyancy (Archimedes theorem).In the gravity field, the vertical upward force on the object in the fluid due to the density difference with the surrounding fluid is buoyancy.
In a liquid, an object whose overall density is lower than the liquid density will eventually float on the liquid surface. This object can be called a float. Under constant conditions, the buoyancy of the float is constant (constant buoyancy).
When the float is subjected to an upward force less than its own weight or a downward force less than the weight of the liquid equivalent to its own volume, the characteristic that the float will eventually float on the liquid surface will not be changed.
In the steady state, the buoyancy of the float is constant.
When the position of the liquid surface changes vertically, the vertical position of the float will change synchronously with the position of the liquid surface under the action of constant buoyancy.
The float level gauge is a device that displays the vertical position of the float in the form that people can read directly through various mechanical, electromagnetic, optical and other physical means.
Float Level Gauge,Marine Magnetic Float Level Gauge,Liquid Level Float Gauge,Float Type Level Gauge,Magnetic Float Type Level Transmitter
Taizhou Jiabo Instrument Technology Co., Ltd. , https://www.jbcbyq.com