a nice and easy-to-use thousand yuan national brick-Feiao M7 portable player experience talk

if you want to make a keyword list for the players in the first half of this year, the thousand yuan national brick must be on the list. Since the beginning of this year, a number of thousand-dollar players have been warmed up in advance. In April, various crowdfunding starters were even more popular. As a senior manufacturer in the domestic audio field, Feiao also released the 1,000-yuan flagship-M7 at the first time. After a one and a half months of crowdfunding, he finally met with you. What unexpected surprises will be brought by the high praise during the internal test, and how to improve and show the quality compared with mobile phones, let the author who started with early adopters reveal them one by one:

products adopts the popular card-type split box design. The M7 front and back body renderings painted on the outer cover are exactly the two colors currently available: silver and black. In the upper right corner is the well-known "small gold label (Hi-Res certification)", while the parameters listed in the bottom N rows can be known as LDAC supporting "Dafa" and Qualcomm aptX-HD, while the "Exynos inside" downstream from M7 indicates that it is equipped with Samsung chips as the master control. Through some information on the black background of the outer box, we can know that M7 will also introduce red, blue, green, titanium and other color schemes. Friends who like bright colors can look forward to it.

is packed with milky white corrugated paper. In terms of contents, in addition to the main machine, it is also equipped with a Type-C number of filling lines and a clear water sleeve. There is no slight regret in the spare film (in fact, the M7 has been pasted with toughened film before leaving the factory, but if it is better to give more for spare, am I a little greedy, ha ha). There are quite a lot of paper products. In addition to the quick entry guide and warranty card, there is also an instruction card used by M7 and its Q1 MarkII earpiece. The playing methods are quite rich.

PU machine cover is purchased separately, and M7 means it fits well (it can be said to fit tightly). The frame is reinforced with manganese steel and has excellent toughness to ensure long-term use without deformation. The set I gave is blue, and it should be launched in different colors later.

if there is no "gap" in one corner, I believe many people will take it upside down at first sight. In fact, a generous forehead up is the correct way to hold it. In terms of appearance design, M7 inherits many classic elements of the Feiao family, the all-metal body made of aluminum alloy, the volume knob in the upper left position, and the breathing power button with red circle and blue dots (officially called "Feiao Red"). Let people know that this is Feiao's player when they first start. Of course, compared with the "predecessors", compared with the "chunky" of the X5, the M7 is more slender and small, and it is also easier to hold and carry with one hand.

body is a 3.2-inch full-fit touch screen. Although the resolution of 480*800 is not the same as that of mobile phones, the effect is still relatively clear and delicate when the player is standard today. The specific "circumference" of the fuselage is 52*109*13mm. The size of the "slap" and the right weight (116g, not too light or heavy) make it easy to hold in the palm (if you are the left hand, the thumb fits right at the roller, which is quite convenient to adjust the volume).

Feiao M7 has three interactive modes, namely touch + key + scroll wheel. The benefits of touch screen can be summarized in one sentence, that is, "simple, easy to use and easy to use". It is worth mentioning that M7 adopts an operation mode similar to iPhone X, with three Android virtual keys hidden at the bottom of the screen. Through simple gestures, operations such as returning to the upper level (sliding up in the lower left corner) and the main interface (sliding up in the lower right corner) can be realized. The remaining two interactions are realized through the scroll wheel on the left side of the fuselage and three solid keys lined up. Through them, the music can be quickly controlled without lighting up the screen (such as scrolling to adjust the volume, switching and playing/pausing of up and down songs, and there will be a more obvious sense of damping when adjusting the volume with the scroll wheel), especially When you go out of the street, you can operate blindly in your pocket, which is very convenient.

the symmetrical 3.5mm earphone connection hole and power key on the top of the body, the former supports the function of standard CTIA wire-controlled earphones (the author tried several earphones with wire-controlled earphones in his hand can be used normally, of course, all of Feiao's earphones can be perfectly supported). Of course, this interface also supports LINE OUT, which can be externally connected with ear/power amplifier, enrich the playing method and expand. It is slightly regrettable that no balancing port is provided. BTW, the small blue dot in the middle of the power key is the status indicator, which will always light up after starting up to remind you not to forget to turn off when not in use.

a close-up of "Feiao Hong:

The right side of the body is a TF card slot (there is no dust cover, and it does not require a card position design). Although M7 rarely leaves users with 2GB of built-in storage space (this is a little bit of data by Feiao's software team without affecting the operation and stability of the system), it is still necessary to bring their own TF card (the maximum supports 512G expansion) for friends who do not lose damage to the hearing.

the Type-C interface at the center of the "butt": positive and negative blind insertion to a certain extent avoids daily wear and tear, and improves the service life. At the same time, this port can also present USB AUDIO and other functions. M7 natively supports DSD output (can support DSD128), and can be connected to the ear holder as a digital turntable (the official recommendation is to bind your own Q5 to maximize the strength of both).

fuselage is wrapped with a whole aluminum alloy steel plate, and the hand feeling after frosting is delicate and smooth. In addition, it should be considered that the relationship between Bluetooth signals, the top is obviously made of plastic, but it does not affect the beauty of the whole. The bottom line of authentication and charging specifications (5V 2A) can be charged with the mobile phone charging head (it can be fully charged in 2.5 hours). M7 has a built-in 1880 mA lithium ion polymer battery, which can play music for 20 hours with headphones plugged in, while Bluetooth connection can last for up to 30 hours. Thanks to the Samsung 7270 chip, 40 days of deep standby can be realized. If you use it frequently, you don't have to worry about it (ready to use at any time) if you keep the machine on.

hardware configuration, Feiao M7 is equipped with a Samsung Exnos 7270 processor, a 14nm process (compared with 28nm, saving about 20% of electricity), integrates two ARM Cortex A53 architectures, and adopts Samsung SiP-ePoP laminated packaging technology (its advantage is that it occupies a smaller PCB area and saves more space (up to 40%) than the existing separate packaging process, thus leaving more space for batteries, to a certain extent, it improves the heating of the fuselage and improves the battery life). According to official claims, M7 is the first time in the national brick to adopt the same 6-layer multi-stage HDI PCB process as the mobile phone PCB (using blind buried hole interconnection wiring, the thickness is only 0.8mm). In short, the process is complicated and the packaging is advanced.

here, by the way, before the release of the M7, many people would guess whether it was Samsung's flagship chip. in fact, it is impossible to position the M7 itself as a portable player (the existence of a thousand yuan machine, after all, there are X5 three generations in the upper middle end). Compared with the domestic cores of Chinese bricks, this 7270 for wearable devices (smart watches) is not only highly integrated (built-in Bluetooth, WIFI, FM), but also has a small package area, low power consumption and longer endurance. However, considering the 7270's own performance, in order to ensure the smoothness of user experience, M7 has been customized and streamlined on the basis of native Android (the six-way grid interface after startup), "castrating" the APP's expansion capability so that it can only play music in pure tone mode. The whole main interface is fresh and concise, mainly flat UI, and its icons are redrawn by the manufacturer's own designers. There are still some common/practical functions that users must have. For example, the popular FM radio.

uses an independent FM chip Si4705 (full digital DSP architecture, good consistency and strong anti-interference ability), which can be directly output to DAC, effectively taking into account both radio and audio effects. Its FM frequency coverage is 76MHZ-108MHZ, which basically covers all places that support FM broadcasting. I have specially measured it, not to mention the number of stations I have received, and it is relatively clear (the effect is much stronger than that of mobile phones, and there is no such noise as the sand in the past). When it comes to DAC,M7 uses ESS ES9018Q2C, which is actually a DAC op amp integrated chip with highly integrated ESS9018K2M + ESS9601K. It was originally used for HIFI music mobile phones. However, because the integration level is higher while keeping the package area unchanged, it saves the motherboard space and reduces the power consumption (under the condition of-10dB THD + N, the output power can reach 49mW), so it is also used by many players. Different from ordinary combo chips, the digital/analog parts of the ES9018Q2C are independently powered. The internal analog ear holder is divided into dual power supplies and external LPF (adjustable parameters), which brings developers more flexible application and sound quality adjustment space.

is a condensed version, the common gallery (wallpaper can be added) and file manager in Android have been retained. In "Technical Support", TFC cards can be upgraded locally, and there are many options in the settings, which are often used, so I won't repeat them. In the actual experience is still very smooth, there will be no Caton. Gesture operation is also handy and convenient.

M7 is Bluetooth 4.2 version, with two-way Bluetooth transmission, LDAC high-quality wireless transmission supporting SONY (compared with ordinary Bluetooth transmission speed increased by 3 times, reaching Hi-Res level), and 24bit APTX-HD coding, And backwards compatibility. In addition, it also supports APE, WAV, FLAC, AIF, DSD, M4A, WMA, OGG, AAC, ALAC, MP3 and various mainstream audio formats. It has a built-in FPGA dedicated to clock processing for 7270 output digital audio, which enables M7 to have DSD hardware decoding capability and can support DSD64 (DFF/DSF format is supported).

Since M7 supports LDAC and APTX HD, I just have a WH-CH700N wireless headset just introduced by Sony. After turning on Bluetooth, I can manually select different codes and qualities (sound quality or connection is preferred, default standard). In order to achieve the best sound effect, I naturally choose sound quality is preferred. M7 has its merits in detail dynamics, degree of separation, sense of encirclement, etc. The low-frequency part has a lot of sense of quantity, and the dive is relatively in place. The intermediate frequency is clear and transparent, with a certain sense of hierarchy, high density, full and comfortable sound, the vocal position is relatively forward, the knot is clear, a little grainy, there is a certain cohesion, and there will be no loose and thin feeling. The sound field is wide and natural, with sufficient momentum. The degree of separation from the instrument is also more open. The high frequency is smooth and soft, the details are restored in place, the ductility is good, but the resolution is slightly general.

M7 cable connection playing sound quality is also good. With the Lyra Classic flat plug at hand, when listening to "California Hotel", the unique texture and elasticity of the guitar can be well presented, and the vibration of the lines can also obviously feel that it is relatively smooth, the low frequency can be retracted freely, the sense of quantity is moderate, the separation degree between various musical instruments is quite excellent, and there is no sense of clutter, the detail restoration is also relatively even, and there are no deliberately prominent frequency bands or musical instruments. The intermediate frequency is warm and mellow, the sound is transparent and pure, the human voice is peaceful, and the degree of separation from the instrument is also obvious. The knot is thick and thick, and the details are rich, especially the female voice, fresh and comfortable with a warm smell. In "The Meaning of Travel", the opening violin and piano sound are clear and bright, and there is no extra modification. And the charm of the singer when he sings in a low voice can also be played well, which is memorable for a long time. In terms of sound field, both vertical and horizontal are very wide, and the sense of enclosure and three-dimensional are also very strong. High frequency has a certain overtone, good malleability, and strong resolution. In general, the combination of the two is more natural and balanced between the three frequencies, smooth and pleasing to the ear, and has good listening resistance.

After replacing the plug with Xingge's EM3, the low volume feels full, strong and explosive. The dive is powerful and deep, layered, and flexible. When listening to music with strong rhythm such as rock and roll, the atmosphere is very good, which can well set off the rhythm of the music, and there is a sense of incisively and vividly wanting to follow the swing. The intermediate frequency density is very strong, and the sound dye is small. The sound is clear and bright, with moderate thickness, but it is still a little distance from reaching one ear poison and lacks some moisturizing feeling. However, this kind of human voice sounds quite comfortable and natural, and I am not tired of listening to it for a long time. The performance of the sound field is fairly regular, with a wide horizontal extension, but a general vertical height, olive-shaped. High frequency bright without stabbing, analytical force and ductility are good.

summary:, as a 1000-yuan portable player, the positioning of Feiao M7 is obviously different from that of its own X5 3rd generation and X7 series. It not only inherits the fashionable and easy-to-use design of the "predecessors" all-metal body and touch screen, but also simplifies the subdivision of the parts where users do not "catch a cold" on Android system, and adds practical FM radio function, thanks to Samsung's 14nm process 7270 master control, the ability to continue energy is greatly improved (low power consumption and increased battery). The tuning style is more omnivorous and tends to be popular. This kind of "trade-off" just meets the rigid needs of ordinary consumers and primers for portability, ease of use, Bluetooth wireless, comfort and listening. And even the current selling price of 1398 yuan is worth buying.

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