Although professional audio HIFI players have an indispensable position in sound quality, their heavy size is indeed not flattering in terms of portability, and traditional smartphones cannot meet the needs of high sound quality. For users who like to go out, Choose a player that suits you is not easy. Today, the author shares with you a new portable player from Feiao, a well-known audio manufacturer in China: Feiao M7, which is different from the "flagship sound quality" of the previous Feiao X series. Feiao M7 is positioned as a "consumer-grade non-destructive portable player". Especially for users who like to travel, Feiao M7 inherits high sound quality while taking into account the needs of small size and portability.

1. small size and large ability, Exynos 7270 with ESS9018Q2C DAC chip

started Feiao M7 for the first time. The outer packaging style continues the classic elements of Feiao. In addition to Hi-Res certification, the core selling point of Feiao M7 is undoubtedly equipped with Exynos 7270 processor and supports Bluetooth protocols such as LDAC and aptx-HD. It is a leader in portable players in wireless Bluetooth.

accessories, Feiao M7 comes standard with a Type-C data cable and an original TPU clean water sleeve in addition to the host. In addition, Feiao also introduces a customized PU set for M7, which can be purchased separately according to its own needs. To my surprise, Feiao M7 also comes standard with a high-definition tempered glass protective film, which has been pasted on the screen when leaving the factory and can provide better protection without purchasing it separately.

interaction, Feiao M7 not only provides physical keys and volume knobs on the left side of the body, but also uses a 3.2-inch full-visual touch screen with a resolution of 480*800. The physical display effect is very delicate. With the addition of touch screen, for users who first use M7, the learning threshold is lower, and for users who are accustomed to smart phone control, Feiao M7 is almost 0 threshold.

hardware configuration is the first highlight of Feiao M7. The machine is equipped with Samsung's first mass-produced Exynos 7270 processor, equipped with the more advanced 14nm process at present, and integrates two ARM Cortex A53 architectures. Compared with the previous 28nm process, Feiao M7 has significantly improved its power consumption and performance. In addition, considering the portability positioning of Feiao M7, this Exynos 7270 processor adopts Samsung Sip-ePOP laminated packaging technology, which effectively reduces PCB area and can stack RAM and ROM modules, thus greatly saving space. At the same time, Feiao team also cut out 2GB of space from Exynos 7270 on the premise of ensuring system smoothness, and additionally supports the expansion function of up to 512GB of storage TF card.

core DAC selection, Feiao M7 uses ESS Combo chip and is equipped with ESS high-performance combined DAC chip 9018Q2C. It integrates traditional DAC, earmuff and output selection functions. It not only effectively reduces the overall size, but also has 121dB signal-to-noise ratio, 115dB distortion, 384kHz/32bit and other good performance parameters.

interface, Feiao M7 is equipped with a power button and a 3.5mm audio interface on the top of the fuselage, which supports the function of standard CTIA wire-controlled headphones. At the same time, this interface also supports LINE OUT output function, which is compatible with ear amplifiers and power amplifiers. The whole machine does not have a standard balance interface. What is more interesting is that Feiao integrates LED status indicators in the power button, and under normal, the blue indicator light will light up in the middle of the power key.

fuselage is a Type-C interface. Under daily use, it is more convenient to plug in both front and back. It can be used for charging equipment and data transmission. At the same time, this Type-C interface also has USB AUDIO and other functions, simplifying the complexity.

classic audio player are all set on the left side of the machine. From top to bottom, the volume wheel is followed, with the functions of the previous song, pause/play and the next song. In daily use, the left-hand one-handed control experience of Feiao M7 is better. The small appearance of 52mm * 109mm * 13mm is only about 116g, which leaves the impression of traditional heavy national bricks and feels very comfortable to hold.

system, Feiao M7 has been deeply customized and developed for Android system, redrawn most ICON, and re-structured for UI interface. Only the functions related to core audio are retained. UI style adopts the current mainstream flat design. In touch interaction operation, Feiao M7 has also canceled the traditional virtual key design and adopted a gesture control scheme similar to iPhoneX, you only need to draw on the left and right sides of the screen to realize the function of traditional virtual keys.

During the author's week-long experience, Feiao M7 was very eye-catching in terms of system fluency. This Samsung Exynos 7270 processor, combined with Feiao's deeply customized and streamlined system, squeezed out almost all the potential of Exynos 7270, and there would be no caton, procrastination, etc. At the same time, gesture control was also very convenient in the actual experience. Sliding up the lower left corner can return.

decoding compatibility, Feiao M7 has a built-in FPGA, and is matched with an independent active double crystal oscillator to accurately restore the clock. As a result, Feiao M7 also supports the highest DSD64 hardware solution. It almost eats all mainstream audio formats such as APE/WAV/FLAC/DSD/AIF/OGG/AAC on the market, meeting various needs of audio enthusiasts. Under the premise of the same portability, more comprehensive audio format compatibility performance ensures high-quality audio output requirements.

is more conscious that Feiao M7 is also innovatively equipped with FM radio function in the field of professional audio players. At first glance, it seems to be a bit of a "not doing business" design, but it makes this Feiao M7 stand out among many professional audio players. The independent FM chip Si4705 is designed with all-digital DSP architecture, output directly to the ES9018Q2C, taking into account the radio effect and audio index, and has FM 76MH, it covers almost all areas that support FM broadcasting.

endurance performance, Feiao M7 has built-in a large battery of up to 1880mAh in a small volume. Exynos, which is matched with the latest 14nm technology, 7270 excellent power consumption performance and provides endurance performance of up to 20 hours. In the deep standby state, Feiao M7 provides a standby capacity of up to 40 days. Judging from the author's actual usage in recent days, Feiao M7 is fully charged, listen to FLAC 44kHz 814kbps audio, and the power consumption for 2 hours of continuous audition in wired state is about 11%. Feiao M7 can easily meet the demand of one day's deep endurance whether it is working, business or traveling.

, it can be said that it is another core highlight of Feiao M7. Samsung Bluetooth chip is built in and Bluetooth 4.2 standard is adopted. It not only supports 24bit Bluetooth aptX-HD, but also backwards compatibility aptX standard. At the same time, it also supports Sony's unique LDAC wireless transmission protocol. It also eats all the mainstream high-end Bluetooth headsets in the market, especially for users with Bluetooth headsets, the wireless listening sound quality of Feiao M7 is higher than that of traditional smart phones.

2. audition: clean, transparent, and good analytical power

Front end: Feiao M7

Headset: Meizu Flow Bass

Volume: 25

uses Meizu Flow Bass to listen to a group of songs dominated by rock, bass and electric sound, such as "Ferry", "King of Low Sons" and "Locomotive Girl". For the first time, Feiao M7. Although the price positioning is similar to Feiao's own X3 series, the overall thrust of Feiao M7 is more inclined to consumer audio players, and the thrust is weaker, however, for some low-resistance earphones, Feiao M7 is relatively easy. The overall tuning style is still popular, clean and direct-out positioning. There is no too much timbre bias. The performance in the three-frequency resolution is fairly satisfactory. The sound field and details fully retain the original flavor of Meizu Flow Bass plug, especially the low-frequency sense of quantity control is relatively good. Long-term listening will not feel stuffy, at the same time, the low-frequency diving force is also controlled very safely, with sufficient explosive force. The rhythm and atmosphere of drums and bass are still well interpreted. Although the sound field is not very open, fortunately, the separation of analysis is high, and the junction of different musical instrument spaces is relatively three-dimensional.

Front end: Feiao M7

headphones: Meizu LIVE (four-unit moving iron)

Volume: 23

when the earphone was replaced with Meizu LIVE, the three-frequency quality of this four-unit moving iron earphone was improved compared with Flow Bass. the plug impedance was 18 Ω, which was better than Meizu Flow Bass's 32 Ω. when trying to listen to some male and female vocal songs, such as "don't cry my favorite person", "full moon" and "girl in Osaka city", the first feeling was that the sound field was much, the details of the prelude are more abundant, and the human voice is relatively close to the ear. Personally, I think Feiao M7 is still a more skillful way of listening. It is warm, clean and not stiff. At first glance, there will be a feeling of love at first sight, the melodious and profound feeling of violin, the medium and high frequency performance of girls is more eye-catching, the sense of dental sound is well controlled, and the sense, personally speaking, Feiao M7 is still good at popular, vocal and folk songs, but it is slightly weaker in large-scale songs.

Front end: Feiao M7

headset: HIFIMAN RE800 (topological diaphragm moving coil)

Volume: 28

When the quality of the plug is upgraded to another grade and replaced with Feiao M7 and HIFIMAN RE800, the impedance of this plug is 60 Ω, the sensitivity is 105dB, and the sound unit is a topological diaphragm moving coil unique to the HIFIMAN. At this time, the overall analytical quality of Feiao M7 can be obviously felt to be upgraded to another grade when opening the voice. The parts that have not been analyzed by the first two plugs, such as bass, at this time, it can be clearly felt that the analysis details of the whole song are very rich. At the same time, the sound field has been pushed a lot more by Feiao M7, and the sense of ear distance has also changed. Another obvious advantage of the improvement of resolution is that the stereoscopic impression is more comprehensive, the sound quality is still consistent and clean, and there will be no paste or procrastination, especially in the interpretation of female voice high frequency interval, the permeability of Feiao M7 is also better. The control of tooth sound and edge thorn is remarkable. The sense of low frequency quantity is obviously a few points, the reverberation is moderate, the loudness is sufficient, and the sound analysis is relatively solid.

Front end: Feiao M7

headset: FIIL Wireless (aptX bluetooth)

Volume: 28

, I have to mention the powerful Bluetooth wireless compatibility mode of Feiao M7. In addition to supporting common aptX and aptX HD, M7 also supports LDAC mode with higher bandwidth. For enthusiasts, the advantages of LDAC are self-evident. When playing with Sony headphones, it can achieve nearly three times the transmission bandwidth of traditional Bluetooth 328kbps. For non-Sony headphones, Feiao M7 also provides aptX-HD and apt, the author is good at matching the last FIIL Wireless wireless bluetooth headset. after pairing and connecting, the interface of feiao M7 player will display apxt mode. from the experience of several days, the stability of M7 wireless bluetooth mode is good. in terms of listening feeling, the FIIL Wireless is remarkable in terms of low frequency performance, especially compared with smart phones, even if it is a small white, I can also clearly feel the improvement in analytical power. The sound field is open and transparent, and the details of layering sense are well analyzed. When listening to some songs such as R & B, POP, jazz, etc., the timbre as a whole tends to be soothing and sweet. The atmosphere and emotion are also well interpreted in M7 Bluetooth mode. Although the human voice is not as enchanting as the female poison version, the emotional details are very rich, high-frequency melodious and soft, whether male or female, listening can feel more out of mind, for a thousand-dollar consumer player, Feiao M7 in Bluetooth transmission performance is really prominent.

3. Experience:

M7 is positioned as a consumer-grade portable audio player. It has made a very good differential positioning with its own X series. "Portable, Bluetooth, good-listening and good-listening" is the biggest impression M7 gives me. This DAC chip ESS9018Q2C integrated with ESS9018K2M ESS9601K has been squeezed to the greatest extent and is also positioned differently from the "pure tone" player in tone color direction, it is more like listening to songs for smart phones. Whether it is deep Android customized and optimized interactive control, gestures and touch control can be directly started without getting started. At the same time, it is obviously better than the national brick of pure tone player in volume portability. The aluminum alloy body is fully fitted with the front glass design. While taking into account the color value, the small figure easily packed into the pocket is also designed to replace smart phones and become an audio player for consumption on, the 14nm-based Exynos 7270 processor not only meets the requirements of smooth control in the actual experience process, but also provides the 1880mAh battery with a endurance of up to 20 hours of continuous playback due to its lower power consumption. Finally, in terms of tuning style, I feel that Feiao M7 is still a player that tends to be popular with POP. The low frequency is not boring, the medium frequency is rich in emotion, the high frequency is transparent and clean, and the thrust is not particularly large. However, it fully meets the needs of the first burning friends. For users who like Bluetooth wireless listening and popular music style, Feiao M7 is a good cost-effective choice.

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