"Inner Roll" Little Tail-Feiao KA3 Evaluation

Primer

a few days ago, I released the unpacking video of Feiao KA3. In the video, I asked a question: How often do you usually use small tails?

small tail

equipment such as small tail originally belongs to an expansion device of mobile phones, as more and more smart phone manufacturers cancel the earphone interface of mobile phones, how to connect the earphone with 3.5mm plug to mobile phones has become a matter to be solved. It happens that mobile phones are now used frequently in people's daily life, so the little tail, which was originally used as an accessory, has gradually become a device that many people just need. After some mobile phone manufacturers that focus on Hi-Fi sound quality have introduced some small tails with better sound quality, they have greatly promoted the process of domestic audio manufacturers producing fever-grade small tails.

Feiao, as a domestic first-line manufacturer, has a wide range of products. Taiwan computers, portable players, headphones, Bluetooth audio equipment and equipment connection wires are all involved. Many burning friends can't help thinking of Feiao when they want cost-effective equipment. In particular, the K9PRO and M17 recently launched by Feiao have earned enough traffic and public praise in the circle, but Feiao has not made any moves in the small tail. Although BTR3 & 5 can be used as a small tail, the main function of these two products is Bluetooth decoding earmuff. If used as a small tail, the volume and weight are somewhat exceeded. It is also possible that enthusiastic netizens are urging each other in a hurry. Feiao and Fei Sheng recently jointly launched the first small tail -- KA3. This little thing brought me a surprise and some thoughts as soon as it started.

some discussion

, I think there must be a small partner who is as tangled as I am. Is TWS, Bluetooth decoding earmuff or small tail when going out? This is why I raised the question at the beginning of this article.

because I have some concerns about the use of small tails. This concern is not that the sound quality of small tails cannot meet my requirements. I have also heard some small tails with good sounds. What I am worried about is the slightly troublesome way of connecting the mobile phone with the small tail and then connecting the earphone. After all, the connection of some small tails is very unstable, especially when some small tails with large volume go out of the street, it is very inconvenient. I specially introduced the connection stability of KA3 in the unpacking video of KA3, which is also for this reason.

there is a small tail of power consumption, I believe that "electricity is the mother of sound" this sentence many burning friends have heard, although this is the first for the desktop system, but can see the importance of power for sound. If you want good sound, stable and excellent power supply is a prerequisite, especially if you want your portable equipment to provide high thrust, high-quality power supply is equally important. The little tail uses a mobile phone to supply power. If you want to obtain a stable sound, a good thrust is destined to be at the expense of the power of the mobile phone. However, I believe that the little friends who listen to songs with the little tail must have been prepared for this long ago. Fortunately, many manufacturers have been optimizing the circuit, trying to achieve low power consumption while providing high-quality sound and high thrust.

I personally bring a small tail to use in relatively stable scenes when it is not convenient to carry the player out. When you go out in summer with mobile phones, players and headphones, I'm afraid most people can't fit in their trouser pockets. When it's very hot in summer, you don't want to pack a backpack. It's much fresher to wear a small tail and headphones. When you go out to do business and carry things for a long time, a nice little tail with your favorite headphones can meet the needs of your ears.

, however, the above is just my family's words. We can discuss what my friends think together. I just want to talk about my personal opinion from my usual habit of using small tails. Some netizens said in my KA3 unpacking video that they like to use small tails for long distances.

About KA3

KA3 can be displayed by watching my unpacking video:KA3 FA7S Unpacking Video

KA3 is a bit like a reduced version of M2 heat sink, and its square appearance should be deeply loved by men of science and technology. The KA3 machine is made of metal, so it will be heavier than the small tail made of plastic, but this brings another benefit-wear resistance, so you don't have to worry about scratching its surface when you use it on the street.

, for the sound of small tail, I think tuning is more critical. After all, it is not realistic to rely on stacking hardware to improve the sound level in a limited space. However, the recently released small tails all make a little effort to make hardware. The decoding part of KA3 uses ES9038Q2M DAC, and several high cost-effective equipment I have been tossing about recently use this decoding chip. It is rare for ES9038Q2M to appear on a small tail with a price of 500, which shows that Feiao is still very careful about this small tail.

the amplification part does not give a specific operational amplifier model, but from the specific parameters given by the official, it can be seen that KA3 has a good performance in thrust. Under a 32-ohm load, the single-end output is 130mW and the balanced output is 235mW, which is enough to drive most earplugs on the market and even some portable headsets. In my actual experience, I found that the thrust of KA3 was good among many small tails.

The switch of KA3 status indicator can be set in FiiO Control. Personally, it is not recommended to turn off the indicator. Its indicator can display different colors according to the code rate of the current playing track. When the code rate is lower than 48KHz, it is blue, when the code rate is above 48KHz, it is yellow, and DSD track is green. The output impedance and gain can also be adjusted, which also allows KA3 to be better matched to different headphones. Especially when using KA3 to push some earplugs that are more thrust, high gain can obtain a better sense of space and detail.

KA3 need to download the driver when connected to a Windows computer, and do not need to download the driver when connected to a MAC computer, please pay attention.

KA3 will heat up during use, but it will not be hot when it is powered on for a long time.

sound

mentioned earlierKA3 gave me some small surprises. When I first heard it, I could feel its positive and balanced sound bottom. After listening carefully, I could find that KA3 has a good sense of line in the intermediate frequency and a good performance in the cohesion of low frequency.can be said that KA3 got rid of the sound type of plain boiled water, which is what I mentioned earlier about its surprise. Don't say that Feiao didn't tune. KA3' s driving force performed well. I used it to match Feiao FD5, Dayinke Zen PRO and Tianlong MM400 respectively. After I matched these plugs with KA3 in a circle, I felt that the sound performance of this little tail was still very good.

collocation

KA3 FD5

, many small partners will feel very incomprehensible, why not use KA3 and FA7S to set up suit sets. Don't worry, I made another suit with FA7S. First, let's talk about the subjective hearing of KA3 and FD5. This combination will give people a good sense of sound atmosphere and good hearing resistance. Connecting my iQOO mobile phone with KA3 can drive FD5 well with only 1/4 volume. The low frequency has good cohesion and sense of quantity, and at the same time it will not affect other frequency bands,human voice has a good feeling, the mouth is clear, very pleasing to the ears. This combination is very suitable for listening to pop music when going out of the street. If you listen to some instrumental music, it is recommended not to listen to some high-frequency instruments. The brightness of high-frequency instruments will not be very prominent and will be better than stable. When you go out on the street, you can use this combination to listen to music, and you can get a good sound experience, especially when watching some blockbusters, when there is a strong soundtrack in the movie, the two of them can restore a good sense of presence.

KA3 Zen PRO Iwaki PRO

Zen PRO Pan PRO this set of double PRO combination, has a very loose atmosphere of sound. The balance of KA3 is selected to push Zen PRO. FiiO Control is adjusted to low impedance and low gain. The mobile phone only needs two squares of volume to obtain good sound pressure. From this, it can be seen that KA3' s thrust performance is still very good.KA3 has been enhanced in sound field, resolution and dynamics,, if I can listen to songs quietly, I will choose the balance end of KA3 and then listen to a favorite album quietly. This kind of sound without oppression will relieve my usual nervous mood. The balanced end of KA3 does not change much compared with the single end in the three frequency division, the sound field presents a very regular shape, and the sense of space will become easier for people to perceive. If you listen to some movies or anime originals with this combination, you will have a good sense of listening.

KA3 MM400

my friends around me at ordinary times ask me to recommend some closed portable headwear, I will not hesitate to recommend MM400 and HD25. As for how to choose between the two, it depends on my usual listening preferences. With the decrease of the temperature in Harbin, the ear bag function of MM400 is highlighted. On the way to work in winter, it is a good choice to use mobile phone small tail portable head. This combination has a good complement in sound. The sound of MM400 is thinner, and the sound of KA3 has a certain thickness. At the same time, after the two are matched, people can obviously feel that the brightness and extension of high frequency have been improved. The dental sound is also well controlled. When listening to some Japanese female voices, they can feel that the sound will be younger. Although MM400 is a closed earphone, the sound when matched with KA3 is not very stuffy. Although the permeability is not as good as that of semi-open earphone, it will not make people tired of listening and want to pick the earphone. This combination also has a good sense of listening to some fine lines of male voices, such as male singers with voices like soda green and Guangliang.

KA3, as a small tail with 500 price, can restore the human voice to a good degree of smoothness under the normal and balanced sound, and its performance in thrust is very outstanding., if you like to use your small tail as the main equipment out of the street, you can consider listening to KA3, and I think it will be one of the small tails that have been discussed more recently.

FA7S

I received FA7S with KA3 this time. Let me share with you some of my feelings during listening to this plug recently. FA7S is a six-unit moving iron earphone. When I first saw the configuration and selling price of FA7S, I couldn't help sighing that the six-unit moving iron earphone is only over 2,000 now. I have been burning the FA7S for about 100 hours, and I can obviously feel that the FA7S has good transparency, the sound bottom is very clean, and the voice position is higher. However, the sound of FA7S is not the type with high resolution and high frequency and extremely bright. It has a slight sense of HUFI. It can be seen that Feiao has set the sounds of KA3 and FA7S to pleasing types, which can restore the human voice to a feeling with good smoothness. Moreover, FA7S is not very picky about the front end, and the mobile phone can get a good sense of listening by pushing it directly. However, most smart phones are no longer equipped with extremely advanced 3.5mm earphone connectors, which gives KA3 and FA7S an excellent opportunity to form a suit.

the following to burn friends like the comparison link, FA7S and FD5 price almost. The configuration of the two headphones is different, direct comparison will inevitably be biased. Let me tell you what I feel intuitively. FD5 is a moving-coil earphone, which has a better sense of atmosphere. FA7S's six-unit moving-iron earphone performs better in resolution and transparency,FA7S are one grade higher than that of FD5.As for how to choose between these two headphones, I would suggest FA7S.

LC-BT2 FA7S

I have used the combination of LC-BT2 FA9 for a long time. This is a set of equipment that is very suitable for use in daily life. Both of them are like partners who can accompany you for a long time. As long as you need them, you can always Help you solve the problem. LC-BT2 FA7S gives me the same sense of security,LC-BT2 with FA7S has a good degree of moistening in human voice, a good sense of atmosphere, and some sense of HUFI.the sound performance of this combination is relatively balanced, it is completely competent if you listen to songs at ordinary times and are relatively omnivorous. LC-BT2, the sound in Bluetooth equipment belongs to the superior type. After combining with FA7S, the sound does not have much strong ear-catching feeling and will not poison one's ears, but it is more in line with the feeling that "long-term companionship is a more affectionate confession.

Summary

I am busy at work now. I want to learn a musical instrument when I have time in the future. Although burning friends have been listening to music in a variety of different media, we can see from the enthusiasm of tossing equipment that we also have a high love for music, but the way of expression is different. In the hustle and bustle of the city, we can use our favorite equipment to get a quiet, as mentioned in my KA3 FA7S unpacking video, I want to use a better voice to relieve the pressure in daily life and work. This process of using music to relieve stress is like charging myself. When I am fully charged, I am the brightest boy in this street.

Feiao is constantly changing. From the traditional tuning attitude of KA3 and FA7S, we can see that we are responsible for tossing and turning equipment and Feiao is responsible for providing better products. This is not a charging process.

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