Feiao KA3 portable small tail, let the mobile phone also Hi-Fi

, since the earphone hole has been gradually removed from the mobile phone, the Hi-Fi player and earphone have used the 4.4mm interface. The two things of listening to songs and Hi-Fi on the mobile phone are like parallel lines, and there is almost no intersection. In this case, many Hi-Fi manufacturers have introduced portable decoding and earphones, which is what we often call the small tail, which brings independent decoding and earphones on the basis of not affecting the portability of mobile phones to the greatest extent. In the early days, this small tail usually only had a 3.5mm interface, and it was also susceptible to interference from mobile phone signals and electromagnetic radiation. However, through the efforts of major manufacturers, today's small tails have overcome various problems and assembled the latest chips to enter the market, and Feiao KA3 is one of them.

Although Feiao started out as an earmuff, KA3, a decoding earmuff all-in-one machine of this specification, is still the first one. It belongs to the manufacturer that introduced such products relatively late, presumably in order to give more mature and better products to users. It is equipped with the flagship model ES9038Q2M in ESS portable application field, which is the same as the core-changing K5 Pro. It supports 32Bit/768kHz DSD512 hard-decoded, has 3.5mm and 4.4mm dual interfaces, independent binaural design, and has a large thrust of 235mW under the 4.4mm interface 32Ω. KA3 parameters have been matched with brick machines, but its volume is only the size of a U disk and its weight is only 17.5 grams. It has no burden to hang on the mobile phone and does not need additional binding wires.

a few years after Sony introduced the 4.4mm balanced interface, this interface has almost become the choice of high-end Hi-Fi players and headphones. Although most of Feiao's wires support plug replacement, most of the time it is combined with 4.4mm plugs, which also leads to the inability to adapt the small Hi-Fi tail of 3.5mm in the early days and the small tail of USB earphone hole introduced by mobile phone manufacturers. KA3 comes standard with 3.5mm and 4.4mm interfaces, which can quickly switch headphones with 4.4mm plug between mobile phones and players. For example, the newly bought FD7 can be connected to M17 at home, and KA3 can be connected to the mobile phone when going out.

In addition to connecting mobile phones, KA3 can also connect various other USB-enabled devices. For example, when you are at work or on a business trip, you can connect a laptop, tablet, or even a game console to use better headphones to improve sound quality. All you need is a cable to the USB-C.

usually high decoding, high power output and small size of the trouble is the heat is relatively large. Therefore, KA3 adopts an all-metal body, and even has a structure of heat dissipation fins on both sides to achieve maximum heat dissipation. In order to have stronger heat dissipation performance, the shape looks relatively straight.

KA3. Three colors are used to indicate the sampling rate of the current song. Blue is below 48kHz, yellow is above 48kHz, and DSD is green. If you often use Feiao equipment, you will find that the sampling rate indicator on all equipment is the same rule.

the actual test, under the balanced output interface of KA3, high-end moving coil and ring iron earphones such as FD7 and FH9 can have good performance, and have good sound pressure performance only under the volume output of 10% ~ 15% of (Apple) mobile phone, which will be a bit harsh. The background is very clean, and there will be no extra noise or current sound due to mobile phone search signals (early small tail products will have this problem).

sound quality & listening sense

may be to contrast with the popular warm paste sound of the mobile phone itself. The overall sound trend of KA3 is relatively clear and bright, and the sound details are very rich. The sounds of the three frequency bands are relatively balanced on the whole, and the separation is good. The performance of both popular voices and some OST and small orchestration is remarkable. The low-frequency sense of quantity is just right, with enough atmosphere but not paste. The human voice is relatively close to the ear, clear and grainy. All kinds of high-frequency details can be presented with slight rendering, bright and thorough. Compared with mobile phones, Bluetooth headsets and other devices, we can obviously feel that the quality has been greatly improved, bringing richer details and brighter high frequency. However, compared with a 10,000-yuan machine like M17, KA3 will be insufficient in terms of sound density, image construction and low-frequency diving, and the sound will be thinner. However, considering the price and size, it is quite good to have such a sound.

heat and endurance

Because it usually uses Apple devices, the impedance of the headset is not particularly high, and it does not require a large output power to obtain a good sound pressure. Playing QQ music or NetEase cloud music songs, the sampling rate is generally not high, in this case, even if you listen to songs for a long time, KA3 will only be slightly hot, and will not consume too much mobile phone power. If an Android phone plays music with a high sampling rate, and if it is equipped with a high-resistance earphone and is turned on at a high volume, it will inevitably cause greater calorific value and power consumption. However, I believe that most people, like me, mainly listen to songs with ordinary earphones and online music software, and hardly need to consider the problems of heat and power consumption.

Summary

, with the development of technology, the former thousand-dollar players are now condensed into small tails, which assume the function of connecting Hi-Fi headphones and mobile phones to meet the needs of users to continue to use Hi-Fi headphones in portable scenes. KA3 fills the vacancy of Feiao in this kind of product category, and is outstanding in hardware parameters, sound quality, portability, interface, anti-interference, etc. If there is such a demand for usage scenarios, KA3 is a very good choice.

Author:LOXPO01-27 16:25

web site:https://weibo.com/ttarticle/p/show?id=2309404730287581167808