ever heard of the player with FM radio function? Feiao M7 Unpacking Evaluation

After X1, X3, X5 and X7 were replaced respectively, Feiao introduced a new M-series player. After more than three months of internal testing, the M7 has finally been officially put on sale. Its price is not high only in 1398 yuan. Its market positioning is between X3 and X5. It adopts a new exterior design and full touch screen operation mode, and the unprecedented integration of FM FM radio function is very interesting.

I haven't heard which player or even mobile phone supports FM FM radio function for a long time, and I'm going to forget it. On weekdays, except for occasionally listening while driving, the rest of the time is completely isolated from FM. But from the bottom of my heart, FM radio is as emotional as the BP machine in those days. Countless sleepless nights, fortunately accompanied by the radio.

, the first thing to do after receiving the M7 unpacking is to find a headset to relive the past in the dead of night. Although it is still called FM, the sound quality is completely different from before. I vaguely remember that the Desheng radio used at that time was rustling, while the M7 FM background was clean and terrible. And the sound is very three-dimensional, the low frequency is sonorous and powerful, and the human voice is extremely clear.

its automatic channel search function has searched out a total of 15 channels in Beijing, of which 3 are peripheral channels, and then one 102.5MHz has not been found. In terms of automatic channel search function alone, the performance is quite satisfactory. Like similar products in the past, M7 also needs to use headphone cable as an FM receiving antenna, so the FM function is not available when Bluetooth is connected to wireless headphones.

, let's introduce the sequence of packaging accessories of the products. Feiao has always been known as a "big accessory factory". On the one hand, because of the large sales volume of products, it is worth developing a series of accessory products. On the other hand, Feiao is also a design-driven enterprise. The products are developed based on the thinking of engineers, so they are often considered more thoroughly. There is also a special protective cover with LC-M7 models on the market simultaneously with M7. The M7's own random accessories already have TPU clear water sets, which LC-M7 give consumers one more choice, but this choice requires extra payment. However, this is also the original accessory, and the fit with the main engine is definitely higher than that of the third-party factory.

all the accessories in the box are here.

surprise, M7 has switched to Type-C interface. You know, Feiao's flagship player X7 II still uses the traditional Micro USB interface. Is M7 an adventure? After all, you need to bring an extra cable to go out, assuming your mobile phone is not Type-C.

products is low, but the materials used for workmanship have not been deliberately reduced. The fuselage is still processed by aluminum metal CNC, and the surface is sandblasted with metal, with strong texture. It seems that the M7 host is quite large in the picture, but in fact it is very small, with a circumference of only 109 × 52 × 13(mm).

is also thick with metal wind, and the upper part is the location of the Bluetooth transmission antenna. Non-metallic materials are used to avoid the shielding of signal transmission by the metal body. Although M7 supports Bluetooth, it does not support WiFi, so things like system firmware update must be upgraded manually through TF card.

the vast majority of music players currently on the market have retained the physical control buttons and independent volume knobs, and the ease of physical operation is always incomparable to touch.

engineers squeezed out 2GB of storage space from M7 ROM for users to use freely. Although this space is not large, it can also play a big role when you don't have a TF card. A TF card slot is designed on the M7 body, which supports 512GB capacity expansion at most, and this slot is naked, much better than X5 3rd generation or X7 2nd generation.

in fact, from a universal point of view, Micro USB performs better, but in the long run, Type-C may really replace Micro USB in an all-round way, but it will take a long time, so I won't comment on this.

The headphone port is the same as Line OUT. When Line OUT is required, you can switch between the settings options. This power switch and screen switch continues Feiao's classic red circle design elements, and there is a two-color status indicator in the center of the key.

This twill volume wheel is also a classic design element of Feiao. When rotating, there will be a crisp click sound, the paragraph feeling is very clear, and a paragraph corresponds to a volume adjustment unit.

, let's take a look at this optional PU protective cover. Its model is LC-M7, with a unified price of 98 yuan. However, e-commerce companies are now selling directly to 10 yuan, with a price of 88 yuan. It is also good to buy one for decoration.

are higher than those of the TPU clear water sleeve. I don't know why, seeing this, I think of the Astell & Kern brand inexplicably. It seems that they equipped the player with this protective sleeve at the earliest.

continue to talk about the M7 host. The screen on the front is 3.2 inches in size and has a resolution of 480 × 800 pixels. The display quality is mediocre, but Feiao really designed a picture browsing function for it. If I think of FM FM radio function again, I seem to have returned to the Chinese MP3 player market more than ten years ago, full of memories.

hardware, M7 uses Samsung Exynos 7270 main control chip, dual-core core 1GHz main frequency, 14nm process, Cortex A53 architecture, and low power consumption. Moreover, Samsung SiP-ePoP technology is used in the package, stacking RAM, ROM and master control in one chip, saving space. The M7 uses an ESS ES9018Q2C chip for decoding. The chip integrates the earpiece and the line output, and the digital and analog parts are independently powered during operation. The earpiece uses independent dual power supplies and is externally connected with a low-pass filter with adjustable parameters, which can provide more flexible adjustment of sound quality details.

M7 supports hard decoding of DSD. For USB Audio, it can support up to DSD128. For direct playback on this machine, only DSD64 can be hard-played. At present, real DSD format music spread on the Internet is relatively rare, and real DSD128 and even DSD256 are extremely difficult to meet. Note that I am talking about "true". Don't just download one and come and wrangle.

format, M7 basically supports full support. For PCM, M7 can decode up to 24bit/192KHz. Here, I think of iriver's latest ACTIVO CT10 player, which uses CS4398 DAC, and its decoding capability is PCM 24bit/192KHz.

can see from the promotional materials that M7 supports Apt-X and 24-bit codec Apt-X HD protocol, and also supports Sony's LDAC technology. However, Bluetooth chip is not a well-known CSR product, but Samsung's Bluetooth scheme, Bluetooth version 4.2. I tried it with FiiO FB1 and TOPPERS E1 connection respectively. FB1 supports Apt-X and the sound quality is still good. Simply speaking, the sound quality is indeed better than many Bluetooth headsets on the market. The relative sound quality of E1 is worse, but the connection signal E1 is much better than FB1. In fact, I said in the FB1 evaluation that its sound quality is good, but the Bluetooth transmission distance still needs to be improved.

, thanks to the SiP-ePoP stacking packaging technology and the 6-layer PCB circuit design, the overall power consumption of M7 is not large. The built-in 1880mAh lithium battery can provide 20 hours of endurance, and its standby power consumption is only 1.9mA, which can last for 40 days even without shutdown. After turning on the machine at noon yesterday, I listened to it for a while and did not turn off the machine at night. By noon today, the power was still 91%, and the performance was still acceptable.

M7 plans to offer four exterior colors of black, silver, red and blue, but only silver and black are currently on sale.

, perhaps because of the addition of touch operation, M7's system uses Android kernel and completely rewrites the application layer, which is a bit like the style of Astell & Kern player system, but is far from its own X5 third generation or X7 second generation. In fact, the music player should be designed in this way. It is not a good thing to make a fancy player. Personally, I am very disgusted with installing third-party software on the player, because the Android is seriously fragmented. After installing third-party APP, the speed will obviously decrease and the stability will fluctuate. The overall experience is not as good as expected. (Don't talk about Android mobile phones. What is the size of the engineer team in the first-line mobile phone factory and what is the size of the player?)

I would like to add a few words about the FM FM radio function of M7, which I learned later. It uses Si4705 FM chip with all-digital DSP architecture, with a frequency coverage of 76MHz-108MHz. The digital signal output by the FM chip is directly output to the ES9018Q2C decoding chip during operation, so the good FM sound quality of M7 is directly related to this.

, I will briefly talk about the sound quality. In one sentence, it is worth the price. Compared with the higher-level X5 three generations, there is a gap but not too big. The gap is manifested in the detailed description of the sound and the overall control. In addition, the X5 third generation has balanced output, while the M7 has no balanced output. Compared with the vivo X20 on hand, M7 still has obvious advantages. The sound is much rounder and the high frequency has no excessive ingredients.

Innovation AURVANA TRIO is a relatively popular earphone at present. Using M7 to push it can give full play to about 80% of its strength. The intermediate frequency is very pleasant and has a hint of female poison. However, the combined sound is slightly dry. The FM FM sound after changing into the CampFire Comet is simply magical, and it can't get down when worn on the ears. DSD tried 2.8MHz and 5.6MHz, of which 2.8MHz is DSD64, which can be perfectly supported, while the latter cannot be played. In terms of voice, I didn't recognize anything extraordinary, that is, normal performance.

in any case, it is worth celebrating that Feiao can reduce the price of the player of the Android system to about 1,000 yuan. After all, people have become accustomed to the touch operation mode, and once the X1 and X3 lose their price advantage, they will be quickly replaced by touch screen models. (Author Weibo/WeChat: Forever YC)

The article is from Forever YC. Please stamp the original link>>Click