Earth-flavored hero Yan Shuangying - DC commentary on Lumei A3

"I bet a piece of ocean, you have no bullets in your gun! Look, I won~" This familiar and unfamiliar line comes from the " Yan Shuangying " series of TV series. In the past, "Detective Di Renjie" was popular all over the country, but the spy war series "Yan Shuangying" series launched by the same main creative team, but few people care about it because the subject matter is small. Only the hero Yan Shuangying's performance full of force was left, which became a major label of the anti-Japanese drama. But if it succeeds in arousing your curiosity and allowing you to dive in and finish the TV series well, you will find a wonderful story no less than "Di Renjie". It's full of tit-for-tat, happy revenge. Although this show's service is a little bit dirty, it can always grab your cool point and make you watch it endlessly. This is the charm of "earth-flavored hero Yan Shuangying". And this characteristic is also very similar to the player A3 launched by Yinlumei some time ago. Although it looks plain at first glance, if you are interested in it and are willing to study it, it will also show a very sincere voice to respond to your love.

mentioning the beauty of rhythm, it is estimated that many people will make up such a set of pictures: in a dark and humid small workshop, several uncles and aunts are holding the electric soldering iron , skillfully soldering the circuit board, and manually assembling a circuit board. Another player. Then he couldn't help muttering: "Can this thing listen?" But that's not the case. Friends who are familiar with Yinlumei know that this is a manufacturer with a formal factory and a full set of automated integrated circuit production equipment. Its production process is in no way inferior to the foundries of other HiFi manufacturers.

and Heng Yi, the head of the R&D department of Yinlumei, is also a senior engineer with many years of experience in audio circuit design, and his design level is absolutely online. However, due to the small size of the R&D team, it is impossible to provide users with enough intimate software adaptation, and can only rely on mature and stable Android development boards to achieve interaction. Therefore, Yinlumei's products usually only build a skeleton that can be used smoothly for you. If you want to use it comfortably, you need to toss it a little more. Although the whole process may not be complicated, it is enough to dissuade a large number of users.

Fortunately, in the process of product iteration, they have also accumulated considerable experience and have been working hard to optimize the user experience. Compared with the angular appearance of the first-generation player A1, which has no design aesthetics, the A3 can't see any difference from those designed by major manufacturers. The screen ratio above the average level, the arc transition that is easy to hold, the well-handled arc chamfer, and the reasonable interface and button layout all indicate that this is a near-mature player. Although the clean native interface looks a bit crude after booting, we only need to install a third-party desktop launcher and make some adjustments to make the main interface look the same as other players. Moreover, the A3 is equipped with a 4-core A53 architecture MTK 6737T processor and 3G memory. The performance is roughly equivalent to the N62 equipped with the Snapdragon 425, and it is enough to run daily applications. The first version of the A3 was only equipped with a 4000mha battery with a battery life of 5 hours, which is really stretched for the average person. The one I have is a "long-lasting" A3PRO equipped with a 7000mha battery. Its battery life can reach more than 8 hours, which is enough for daily use.

In the past, Yinlumei will design a switch to control the DAC on the product. Only when this switch is turned on, the audio system can be powered on and work. Although this is to completely separate the power supply of the main control and the audio part, so that the audio part can obtain a looser and purer power supply environment. But it does bring more tedious operations. This time, the A3 directly integrated the DAC switch into the system, and made a shortcut button and placed it in the drop-down menu. It is indeed much more convenient to operate.

is familiar with the basic operations, the last threshold to play A3 is only the playback software. Here we first clarify a concept - "USB exclusive". The general Android system will force the refinement of audio files when processing them.For resampling at 16bit 48kHz, in the process of resampling, part of the original information will be lost, resulting in deterioration of sound quality. However, if the software can call the USB interface in the device, the unprocessed data can be directly imported into the interface, and then through software transcoding, DAC decoding and other steps to finally achieve complete and lossless audio output. Nowadays, the built-in apps of mainstream players in China will probably integrate this function. But unfortunately, Yinlumei A3 still needs us to do it ourselves and have enough food and clothing. However, the advantage of tossing yourself is that you can use better foreign "USB exclusive" playback software, and then obtain a relatively advanced transcoding algorithm, which is more efficient, occupies less resources, and naturally consumes less system power. The power supply is stronger and more stable, so the sound quality when using it is relatively better.

After the teamwork of the official and the members of the Music Beauty community, after trying all the playback apps with exclusive functions on the market, everyone agreed that the neutron player (NEUTROM) is the best choice. It's just that the software is priced at $7.99 and needs to be purchased on the official website. Fortunately, the whole process is not complicated, and the official can also provide a detailed graphic tutorial. After some operation, you can not only get better sound quality, but also receive a very beautiful user experience, which is worth a try.

But what is the reason for people to choose a player that comes from a small factory and requires users to improve their own experience? The answer is that A3 has a super high sound-price ratio. The small factory has its own living method, the R&D team is small, and the product iteration depends entirely on user feedback, so the R&D cost can be kept low enough. The own factory also undertakes the production of other electronic equipment, so there is no need to consider the high cost of maintaining production lines. Most importantly, they use a direct sales model and do not rely on offline third-party channels for promotion. Although the product sales are not comparable to Shanling Haibei, it also saves a lot of channel promotion costs. This allows Yinlumei's products to be sold at a price closer to cost, and ultimately benefit consumers. This is also a disguised factory direct sales model. If you value the sound-to-price ratio and want to exchange better sound quality at the most appropriate price, then you might as well pay attention to this player.

Back to the A3 itself, it uses a famous ESS 9038PRO DAC chip. The performance indicators of this chip are good enough, but the power consumption is huge, and the power supply requirements are quite harsh. As long as a little compromise is made on the portable player, it will emit a relatively dry and cold sound, and there are not a few cases of overturning. Therefore, almost all player manufacturers are quite cautious about using this DAC. However, Yinlumei seems to be very confident this time. Thanks to the successful experience of developing the flagship product W1 V12 before, Yinlumei decentralizes the entire architecture and reduces a part of the amplification power to obtain a smaller hardware volume, but the power supply of the DAC is not. No shrinkage at all. It uses two Texas Instruments TPS7A8400 ultra-low ripple chips as the power supply linear regulator , and is equipped with 4 OPA1612 chips in the I/V part, which is 2 times that of similar products. Sufficient power supply ensures good working condition of 9038PRO. At the same time, the manufacturer plugged in a femtosecond clock from NDK to assist the DAC chip for clock calibration and waveform arrangement. This combination of punches ensures that the DAC chip can be fully fired and restores as much information as possible. The materials used for

A3 analog amplifier circuit are also unambiguous. It adopts a transistor-type amplifier design similar to N62E02 and DX300AMP12, which can provide an ultra-wide current output environment, thereby bringing sufficient current reserve. The working voltage difference of the A3 op amp is 11V, which reserves enough voltage swing for various types of headphones. At the same time, it uses a large number of tantalum capacitors from Panasonic in the amplifier circuit for filtering, which can effectively suppress the generation of noise, bringing a strong and powerful dynamic performance and a dark and deep background to this machine.

As mentioned earlier, if you compare the A3 with the competing products of the same price, the most obviousThe obvious feeling is that the amount of information restored by A3 is much richer. Those cymbals , triangles , which are usually hidden behind many musical instruments, the resonance sound of strings and wind instruments can be restored one by one. It's like you've been taking pictures with a 24-megapixel Sony a7M3 until one day you finally saved enough money to buy a 61-megapixel a7R4. Higher pixels finally feed the lens in your hand. The photos taken by the two machines do not differ at first glance, but as long as you take a closer look, the details of the R4 film can be seen in the slightest, showing the texture, texture and even subtle changes of light and shadow of the material in front of you. The M3 film looks much more blurry, like a layer of mist. It may seem pale to describe this feeling in words. If you have the conditions to download the original film and compare it with your own eyes, you can intuitively feel the difference. The resolution of A3 can almost compete with dx300AMP12, which is far higher than the average level of this price. If you regard the resolution as an important indicator to measure the quality of the player's sound, then it will definitely not disappoint you.

The melody A3 has a relatively thick mid- and low-frequency timbre, which is similar to the Kaiyin N62 when paired with the E02 motherboard, but its tri-frequency distribution is more inclined to the middle and upper plate. In the state of the default single port and no other settings are modified, its micro-dynamic performance is remarkable, and it can well handle the singer's emotions and the subtle fluctuations of the instrument. However, the big dynamic of A3 is relatively soft. The high-frequency information of the explosion and the low-frequency low frequency always give people a top-heavy feeling, which is also what many people criticize. However, it is not too difficult to solve this problem. As long as you switch to a 4.4 balance port and turn the in-camera gain to the highest level, with the blessing of a powerful current reserve, the A3 can also achieve exciting dynamic performance. The low frequency at this time can be called solid and powerful, and with some dynamic headphones , it can easily interpret the overwhelming momentum of the large-scale symphony and the chorus. Its level is indeed comparable to that of the dx300AMP12.

What is even more rare is that in the state of high gain and balanced port, the A3 still performs well, retracts and plays freely, and there is no situation where the high and low frequencies are released and the sense of hearing is too exciting. And this kind of working state of wide opening and closing makes the sound field more magnificent, and the instrument knot is more and more accurate, which further narrows the gap with the dx300. People can't help but sigh, hardware stacking, Li Dazhuanfei is the easiest and most direct way to make a good sound. If you want to say the difference between the two machines, the dx300 uses a higher-spec clock and a relatively complex digital audio processing architecture, the sound is indeed more stable and the tone is more moist, while the A3 is slightly frizzy. After all, the price gap between these two machines is there, and it is not realistic to expect low-priced products to completely leapfrog monsters. But after careful setting, the A3's sound performance is indeed outstanding among players of the same price, and the tuning style can be regarded as omnivorous. After putting in a lot of hard work and tossing out such a result, it also makes people gain a full sense of accomplishment.

actually looked back and saw that every time Yan Shuangying saved danger, it was not an unreasonable plot kill, but the use of rigorous logical thinking and psychological games to the extreme, playing the opponent's mentality with applause. When the villain pointed the gun at Yan Shuangying's head but did not pull the trigger, he had completely lost. It's just that nowadays, most people in the world regard this TV series as an anti-Japanese drama, and there are very few audiences who can really calm down and appreciate the mystery. Just like the beautiful A3 of rhythm, it is like a piece of rough jade waiting to be polished, and it can only shine brightly in the hands of players who are willing to study it. If you are the kind of player who has strong hands-on ability and is willing to study cost-effective products, then Yinlumei A3 is indeed worth a try.