the popularity of smart phones has made the wireless headset market unprecedentedly hot. Although music enthusiasts may not be interested in it, for ordinary consumers, wireless headphones are more convenient to use, easy to carry, and seamless connection with mobile phones. value. Even consumers who have certain requirements for sound quality can meet their needs on wireless headphones with the emergence of high-level wireless coding technologies such as aptX-HD and LDAC. However, although Android 8.0 provide support for aptX-HD and LDAC, there are not many mobile phones upgraded to Android 8.0 at present, and even upgrading to Android 8.0 does not mean that these supports are automatically obtained, because it also involves authentication and royalties.

in such a gap period, some professional audio manufacturers also see the opportunities. Feiao launched a crowdfunding called M7 new product some time ago. Its outstanding feature is the application of Samsung Exynos 7270 processor, which is rare in portable music players and has good performance, and supports aptX-HD and LDAC. Now Feiao M7 has been successfully crowdfunding and officially listed, MC has also obtained the mass production version of M7, and can experience this new product that was born quite a bit surprising to me.

Feiao M7 product specifications

Master: Samsung Exynos 7270(14nm process)

DAC:ES9018Q2C

material: 3.2 inch full fit HD touch display (480 × 800)

material: tempered glass + aluminum alloy body

colors: silver, black

Adapted Headset: 16~100 Ω

Headset output power: ≥ 70mW(16 Ω/THD + N<1%),≥ 40mW(32 Ω/THD + N<1%)

frequency response: 10Hz ~ 90 kHz(-3dB)

Signal-to-noise ratio: ≥ 117dB (A weight)

interface: Type-C USB 2.0 (data port/charging port), 3.5mm(PO, LO multiplexing)

Storage method: Internal storage (about 2GB) and external TF card expansion. The maximum capacity is 512GB.

wireless function: bluetooth 4.2, supports aptX, aptX-HD, LDAC, SBC

FM radio: supported (5 broadcast regions, 76 to 108MHz)

battery: lithium polymer battery (1880mAh, 3.7V)

charging time:<2.5 hours (DC 5V/2A charging)

Duration: 20 hours.

audio format support: DSD64, APE, Apple Lossless, AIFF, FLAC, WAV, WMA LOSSLESS, AAC, MP3, WMA, OGG, etc.

size: 52mm × 109mm × 13mm

weight: about 116g

reference price: 1398 yuan

simple design is more popular with the public.

said that the appearance of M7 surprised me is that before Feiao gave it a crowdfunding forecast, everyone was completely unfamiliar with this product. Especially after Feiao has gradually updated and completed its own X series player in the past two years, covering the portable music player market from 500 yuan to 4000 yuan. Why did Feiao launch such a product? What is the difference between M7 and X series products with similar price? They were all the questions in my mind when I learned that Feiao was going to launch M7. Let's look for the answer from the product.

from the beginning of unpacking, I have already felt the difference between M7 and X series products, not to mention the products themselves, but the accessories. Feiao, who has always been known as a "big accessory factory", has only one silicone protective cover and Type-C USB cable on M7, which makes me feel different. Specifically on M7, although the combination of tempered glass and aluminum alloy body is consistent with many products of X series, I still find such Feiao family elements as "Feiao Hong" and 45 string pattern, but the final visual effect is very different.

▲ The Type-C USB 2.0 interface at the bottom is used for data transmission and charging.

▲ M7 are relatively simple, including transparent silicone protective cover and a Type-C USB cable. In addition, users can also choose PU leather cover with LC-M7 model.

M7 is more simple, with more concise lines and planes, and better integrity. The front is a screen with "forehead". The black border around the screen has a stronger overall feeling when resting on the screen. The back is even more concise. In order to pursue the unity of vision, Feiao even carved the Hi-Res certification logo directly on the back, and gave up the conventional method of sticking small gold marks. This is complemented by the small size and lighter weight of the M7, which is a type that can be easily held with one hand and taken away in the pocket.

▲ Aluminum alloy body has good integrity

▲ The TF expansion card slot on the side of the fuselage supports 512GB TF expansion.

is not only different from the X series in appearance design, but also let us see its different orientation in details such as keys and interfaces. In the audio output part, it only has a 3.5mm audio interface, and LO and PO functions are multiplexed. This interface configuration is not as good as Feiao X3 Mark III, which is cheaper than it in 400 yuan, and the latter also provides a 2.5mm interface. It is not difficult to see that the consumer groups targeted by Feiao in this setting on M7 are those ordinary consumers who choose wireless headphones, and they are also differentiated from their own X series products in terms of audience.

▲ The power switch at the top has a circle & ldquo; Feiao Hong & rdquo; Modification, the 3.5mm port is LO and PO multiplexed.

▲ Most of the control keys and rollers are concentrated on the side of the fuselage. The familiar 45 string elements are also reflected on the rollers, and have a slope design similar to Q5.

Bluetooth feature, FM adds playability

M7 focuses on Bluetooth wireless function. Its Samsung Bluetooth chip supports Bluetooth 4.2 version, provides support for 24bit apt-HD coding, and backwards compatibility aptX. At the same time, M7 also supports SONY LDAC wireless transmission, which increases the data transmission volume by 3 times compared with ordinary Bluetooth, reaching the Hi-Res level. With headphones that also support these wireless coding technologies, users can get a wireless listening experience with better sound quality.

In order to enhance the playability of M7, Feiao also applied Si4705 independent FM chip on it, which has FM radio function, which is a rare design on portable audio players. This FM chip adopts an all-digital DSP architecture, which can be digitally output to M7 DAC chip ES9018Q2C to achieve clearer radio listening effect. I also actually experienced the FM radio function of M7.

, it should be noted that since it uses headphones as the antenna, the FM radio function can only be used when wired headphones are connected. After connecting the headset and turning on the radio on the main interface, it will automatically search and save the available radio stations. After that, the user can also manually adjust and save the radio stations that have not been saved before. In my actual use, M7 automatic channel search has found and saved all 10 stations. When listening to the radio station, the music clarity is good and the voice is full. However, in the indoor office environment, the signal of some radio stations is not good. Turning to the position near the window will improve, and there will be no such problem at home.

▲ Radio function, automatic channel search efficiency is quite high, users can also manually search and save.

system is refreshing and multi-touch is sincere.

portable music players at the same price almost all adopt domestic master control, Feiao uses the Exynos 7270 processor produced by Samsung 14nm process as the master control on M7, which really makes people sigh that it does not hesitate to work hard. Compared with 28nm process, 14nm process brings 20% power saving effect. At the same time, thanks to Samsung's SiP-ePoP laminated packaging technology, the PCB area occupied by Samsung is very small, which is only equivalent to the size of the CPU of a smart phone. Compared with the existing packaging process, it saves 40% space and leaves more space for the battery, which is helpful for enhancing the battery life of M7 and improving the heating situation.

Because of this, the M7 has a built-in lithium polymer battery with a capacity of 1880mAh, allowing it to last more than 20 hours. Hardware is one aspect, and the system is another factor in its excellent endurance performance. Feiao's application on M7 is a system that is simplified after in-depth optimization on the basis of ensuring audio-related standards from function to interface, removing various useless functions.

In the Settings menu, you can select the output and wireless playback quality. The Bluetooth function does not keep the switch on the main interface separately, but needs to be turned on or off in the settings.

its main interface is quite refreshing, and six icons concentrate all its functions. Whether it's playing music, listening to the radio, or making various settings for M7, I can achieve my goal with as few operating steps as possible. I don't have to say the smoothness of the system. Under various operation and different functional usage environments, I have not encountered any situation that affects the smoothness of operation such as Caton, and the system is optimized in place. Let's talk about the M7 screen here. It uses a multi-touch design, so it is easy to operate.

▲ The refreshing main interface eliminates all kinds of complicated functions that are useless for music playing.

▲ Music playback.

▲ M7 provides the gallery function.

may be considering that the screen is not large, Feiao hides the three virtual keys at the bottom, but adopts a gesture operation similar to iPhone X, and realizes the operation of returning to and returning to the main interface step by step through the sliding operation at the left and right bottom of the screen. As far as I feel, after finding and adapting to the effective operation area of the screen, this operation method still has a certain practicality, but it cannot reach the level of arbitrary on the mobile phone. Personally, I often call up the menu during the operation., Use click operation.

▲ You can select the wireless playback quality based on your commonly used Bluetooth headset.

▲ The broadcast area can also be selected.

audition experience

naturally needs to focus on the performance of M7 in this aspect during the audition. Therefore, I specially found the all-digital Bluetooth headset ATH-DSR9BT launched by Iron Triangle last year. Because it supports aptX-HD, matching M7 can just give full play to the potential of both. After successfully connecting with the aptX-HD-enabled Bluetooth headset, M7 will display the Logo of Qualcomm aptX-HD and the word aptXHD in the upper right corner of the screen. With the cooperation of M7, the ATH-DSR9BT does not have many problems such as high-frequency glitches, insufficient intermediate frequency, insufficient low-frequency sense, blurred or missing details in Bluetooth mode, but shows a comprehensive sound performance with balanced three frequencies and rich details.

▲ After connecting headphones that support aptX-HD, not only the relevant icon will pop up, but also the word aptXHD will be displayed in the upper right corner of the screen.

, especially the iconic warm and delicate female voice performance of the iron triangle earphone, is well presented under this combination. Because the sound details are well preserved in the wireless transmission process, I can capture more details in the three frequencies-the texture of the human voice, the slight tremor of the strings, the vibration of the drum skin... When listening to the larger music, the space sense of the music scene is better displayed, and the sound level and the position sense of the instrumental music can be captured through the headphones. With such a combination of wireless systems, I think the overall listening feeling is no longer lost to the wired combination of the same price.

I also used Feiao F9 Pro to match M7 and experienced its sound performance when matched with wired headphones. The sound of F9 Pro's iron earplug is more analytical and in a positive style. With the M7 matching, F9 Pro basically retains this characteristic. However, compared with the player with the balance interface, the edges and corners of the sound are polished a little rounder. Under the condition of slight compromise in analysis and performance, its sound has a little more warm listening feeling.

, especially the vocal part, the singer's position will be closer to the ear, and the voice will be "warm", which is more in line with the sweet and thick listening feeling that the public pursues for the human voice. In violin performance, the extension of extremely high frequency has converged, and the soprano is polished smoothly into the ear, and the listening feeling is full of enthusiasm. The low frequency part is not the long term of F9 Pro, and M7 does not help much to improve this part, and the sense of hearing is not thick enough.

In the past two years, we have often heard a view that smart phones are gradually seizing the market for portable music players. Therefore, we have also seen that when manufacturers launch new portable music players, they are increasingly focusing on sound quality and functions, and strive to retain music enthusiasts with more professional performance. However, focusing only on this market is more like a kind of defense. After all, the circle of audio enthusiasts is still small. Why not take the initiative to attack?

in my opinion, M7 is an attempt by Feiao to respond to smart phones invading the music player market. More fashionable appearance design, high-quality Bluetooth wireless technology support... This time it is aimed at a broader consumer circle. With the blessing of Samsung processors, M7, the "number one player" in the portable music player market segment, will be favored by more ordinary consumers? We will wait and see.

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