a real youth product-Feiao X7 Mark II Android Smart HD Lossless Music Player
's development plan was announced in 2013, the first generation of products was launched in 2015, and the second generation of products was launched in 2017. The development cycle of Feiao's flagship player X7 series is really not short, which can be described as a two-year sharpening. In the rapidly changing digital industry, few manufacturers do this. Two years is too long and contains too many risks. Fortunately, Feiao's product line is relatively complete and does not rely on a certain model to survive, so he can calm down and take this flagship intelligent high-definition lossless music player seriously.
's latest X7 Mark II was officially released in July this year and then introduced to the market. The reason why it did not jump tickets like the first generation is that the design of the second generation draws on many mature designs in the first generation, such as the basic hardware framework, replaceable ear card interface, etc. The first sight of Feiao X7 Mark II was quite surprising. It has a typical Feiao family design style. The power switch button surrounded by red circles, 45 string volume knob, chamfered bright edge treatment, special-shaped side cutting, etc. are all very familiar, but it is domineering to put these elements together.
I tried to cover the left side of the X7 Mark II with my hand. If I look carefully, this is not the previous generation X7. It is true. Because it is compatible with the previous generation X7 ear card, the second generation still has some compromises in appearance. The advantage is that the X7 ear card purchased before can still be used on the X7 Mark II. The steps for replacing the ear card are exactly the same as those of the previous generation. Just unscrew the two screws, except that the X7 Mark II has a small decorative piece for the special-shaped cutting transition on the left side. I was worried that this decorative piece might be lost accidentally, just as I mentioned that the two screws used to fix the ear card might be lost accidentally. Feiao seems to have thought of this for a long time. Additional decorative spare parts and screws are attached to the packaging box. Absolute conscience manufacturers can always look at the problem from the perspective of consumers, so as to solve the problem.
in the X7 generation, I like the hot plug design of the earpiece card very much. It is very useful when AB compares the sound quality of different types of earpiece cards. There is no need to switch on or off frequently, thus shortening the time for replacing the earpiece card. I am glad that this design has been retained on the X7 Mark II, and each X7 Mark II is pre-installed with a brand-new AM3a ear card, which is the same as AM3 in that it supports both balanced and ordinary output modes. In addition, it is quite different and the internal chips are completely different. The design of AM3 is very low, which can also be said to be stacking. The whole module uses 6 Ti OPA1622 to realize balance and common output. AM3a is another way. It adopts the independent design of the front and rear stages. First, AD8620 is used as the front stage amplification, and then two customized OPA926 chips are used as the rear stage, thus realizing the same output modes of balance and common.
X7 Mark II is the same as that of the previous generation X7. It is made of 16 million color IPS material, with a 3.97-inch 480 × 800 pixel resolution. The display effect is clear and the visual angle is large enough. It is enough for a small screen Android device. In addition to listening to songs, it also has complete Android system expansion capability and can install various application software, not just limited to listening to songs APP. You can install WeChat to chat, install a browser to watch web pages, etc.
Starting from the X5 Mark III, for the sake of the beauty and flatness of the fuselage, Feiao gave up the previous exposed TF card slot design and switched to the Cato method. It does look better, but it is not as convenient as before in actual use. I am lazy to change the TF card now, because I have to use the card needle to take it out, which feels a little troublesome. However, if the TF card is only used for expansion, it will not be affected. X7 Mark II supports a single TF card with a maximum capacity of 256GB. The body is designed with a total of two card slots, plus the built-in capacity of 64GB, which can provide a total of 576GB of storage space.
wireless connection, X7 Mark II supports WiFi and Bluetooth, of which WiFi has been upgraded from the previous generation and can now support 2.4GHz and 5GHz frequency bands. However, Bluetooth adopts Bluetooth 4.1, supports Apt-X compression algorithm, has dual-mode working mode, and can send Bluetooth signals while receiving Bluetooth signals.
X7 Mark II continues to use the previous generation of Ruixin micro RK3188 main control chip. The running system is deeply customized based on Android 5.1. The memory has been increased from 1GB of the original X7 to 2GB. The smoothness performance will be better when multiple APP are running at the same time. The decoding chip is the standard version of ES9028 PRO, not the simplified version used on mobile phones, which is very important. The ES9028 PRO decoding chip has built-in 8 independent audio lines, the signal-to-noise ratio is as high as 129dB, the total harmonic distortion plus noise is controlled at-120dB, and the distortion compensation algorithm is adopted, coupled with the unique filter of the ES9028PRO, which can increase the second harmonic component of the sound, making the listening sense more charming. In terms of clock accuracy, X7 Mark II has built-in three independent active crystal oscillators, corresponding to DSD and 44.1KHz, 48KHz and 384KHz respectively, and jitter is reduced by matching synchronization.
X7 Mark II PCB has 7 shielding covers, of which the main control chip and the operational amplifier circuit part adopt double-layer shielding measures to reduce the interference between components. Under the condition that the internal space of the fuselage remains unchanged, the built-in battery capacity of X7 Mark II has been increased from 3500mAh to 3800mAh, and it is also a high-voltage fast charging battery, supporting QC2.0 and MTK PE two fast charging modes, and its charging speed is nearly 3 times faster than that of the old model, and it only takes 1.5 hours to fully charge. Although the corresponding charger is not seen in the box of the X7 Mark II, most merchants will give it away when purchasing the X7 Mark II.
X7 Mark II has two modes: Android and pure tone. In pure tone mode, because there is no interference from other applications, the sound performance is theoretically the best and the running is the smoothest. Friends who know Android systems all know the SRC problem. Feiao has also studied the SRC problem for many years. It not only solves the SRC problem in pure tone mode, but also solves the SRC problem when all third-party applications call audio processing. Therefore, whether you install NetEase Cloud Music or QQ Music, its sound quality is guaranteed on the hardware side.
sound quality performance, its high frequency performance will be impressive. The high-frequency resolution of this combination is very high, the bottom noise is not much, the sound is relatively clean, listening to female voice is especially exciting, is another kind of female poison. Although its low frequency is not much, it is basically enough, but the stimulation is far less than that of high frequency. In addition, the sound of F9 has the typical characteristics of moving iron units, that is, the sound is not soft enough, and the overall sound is slightly hard.
unbalanced mode, the intuitive impression is that the intermediate frequency has become somewhat mellow. The high frequency is a little less sharp and a little more delicate than F9, and the sound is not so exciting and tight, even sounds a little empty and beautiful. There is also an improvement in the quality of low frequencies, better elastic performance and more in place dive. The biggest feature of the sound under this combination is that it sounds very natural, very pleasant and listening.
Feiao X7 Mark II has many functions. Besides pushing headphones to listen to songs, it can also be used as an external sound card of PC, that is, USB DAC function. In addition, it also supports Line Out external earphone amplifier, or coaxial or even optical fiber output, which is very playable. It is especially suitable for players who like tossing and turning. It has multiple functions and has good quality. It is a real good product for young people.
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