Limited "Good Voice"-Experience Feiao M11 Plus LTD Music Player

is second only to the flagship M15 in the Feiao player camp, and the M11 series has an important position. M11 and M11 Pro, which were previously introduced in 2019, are Feiao's masterpieces in the highly competitive 3,000-yuan and 4,000-yuan music player markets. Especially the latter, as Feiao's first music player equipped with THX earphones, M11 Pro has outstanding product power in its peers. However, with the Samsung Exynos 7872 master adopted by M11 Pro facing shutdown, the successor of M11 Pro is on the verge of coming out-this is the M11 Plus LTD I want to experience today. LTD appears on the product as a suffix, which means it is a limited edition product. What is the special feature of M11 Plus LTD?


Feiao M11 Plus

Master: Qualcomm Xiaolong 660

DAC:AK4497EQ×2

Earrings: THX AAA-78 × 2

screen: 5.5 inch, 1440 × 720 full touch display

USB:Type-C USB 3.0

battery: 6000mAh high voltage fast charging lithium ion polymer battery

battery life: single-ended 11.5 hours; Balance 10 hours

Charging time: about 3 hours (using QC4.0 charger)

Output power: single-ended 206mW(32 Ω); balanced 588mW(32 Ω)

frequency response: 5Hz ~ 90kHz(-5dB)

SNR: ≥ 120dB

THD + N:<0.0006%(A calculation)

Bottom noise: PO<2 μV;BAL<3 μV.

Maximum output specification: 384kHz @ 32bit;DSD256

Support third-party applications: Apple Music, Google Play, etc.

size: 136.6mm × 75.7 × 17.6mm

weight: about 310g aluminum alloy; Stainless steel about 405g

reference price: 4999 yuan (aluminum alloy version)

5999 yuan (stainless steel version)

Sixth Generation Modeling

details grab the mirror

people who know something about the M11 series believe that they can feel the inheritance of the series from the outline of the M11 Plus LTD-the three-dimensional cutting of the surrounding borders has the shadow of the previous work. However, Feiao has not stopped in the creativity of the new products, and the M11 Plus LTD, which has been passed on, has changed more. This time, Feiao adopted the hexagonal honeycomb element for the first time on M11 Plus LTD, and took it as the sixth generation design element of Feiao player products since the first generation X3 's straight key design.

The hexagonal honeycomb element on the key is the latest design element of Feiao.

hexagonal honeycomb elements are mainly reflected in 5 control buttons and 1 toggle switch on both sides of the fuselage. They are well integrated with the fuselage and have strong integrity. In the power-on state, the blue contour light will also light up around the power button, and there will be a breathing effect when charging. The golden volume wheel, which was previously one of the iconic elements on M11/M11 Pro, was replaced by a touch button integrated volume panel on M11 Plus LTD this time. Both ends of the integrated volume panel can be pressed down, and the surface can be operated by sliding. The specific operation feeling will be explained in detail in the following experience link.

The back design of diamond-like cutting texture makes the flat surface have a three-dimensional visual effect.

the biggest highlight of this M11 Plus LTD design is that its back-glass panel adopts diamond-like cutting texture, which gives the smooth panel a three-dimensional and bright visual impression, and the effect is quite outstanding. Many domestic consumers have a preference for diamond cutting texture. A luxury brand model that just went on the market not long ago is said to have specially changed the leather gear of global models into diamond cutting design according to consumer preferences. It seems that manufacturers in different fields have the same understanding on this point.

M11 Plus LTD is located on both sides of the fuselage. There are power keys and multi-function keys on the left side, and the volume touch button integrated panel is in the middle. On the right side are the front and back selection and play/pause keys. There is a small bump in the center of the play pause key, which is convenient for users to locate when they are busy. There is a Hold toggle switch under them to disable the touch panel, which is convenient for users to avoid misoperation when carrying it with them. In addition, there is a TF card expansion slot on this side, with Cato design, to ensure the integrity of the body.

The complete output interface allows users not to fall into the anxiety of difficult selection.

interface is concentrated at the bottom of the fuselage. M11 Plus LTD still continues the complete configuration of the previous 2.5mm balance, 3.5mm single-ended and 4.4mm balance interfaces. At the same time, the LO output of the 4.4mm balance interface is increased, and these 4.4mm interfaces can also be used for earphones and earphones. The two-way USB Type-C interface in the center of the bottom has decoding + output functions, which can realize USB storage, charging, USB Audio, USB DAC and other functions.

M11 Plus LTD reaches 6000mAh, the charging power is increased to 27W, and QC2.0/3.0/4.0 and PD fast charging are supported. This allows its power to support continuous playback for more than 10 hours (single-ended 11.5 hours; Balance for 10 hours). On the accessories, the M11 Plus LTD was directly sleeved in a customized leather case when it left the factory, and the toughened film with oleophobic layer was also pasted on the screen. In addition, there is a USB 3.0 interface for charging and data transmission, a coaxial patch cord and a pin for taking TF cato.

Xiaolong "Core" with limited DAC

we mentioned earlier that the LTD of M11 Plus LTD represents a limited amount, and its significance is mainly reflected in the flagship DAC chip AK4497EQ it uses. Those who know something about the audio industry should know that at the end of last year, the AKM factory caught fire, and a big fire burned for 3 days, which caused all AKM chips to be out of stock. Feiao is AKM's largest customer in the domestic Hi-Fi audio industry, so it still got some AK4497EQ and applied it to M11 Plus LTD.

The two AK4497EQ used on each M11 Plus LTD became a limited out of print.

with AKM's announcement that AK4497EQ will no longer resume production, the two AK4497EQ used on each M11 Plus LTD will naturally become a limited edition out of print, and one less will be bought. In terms of the ear amplifier architecture, M11 Plus LTD still uses the THX AAA-78, the most high-end module of the THX AAA Frontier series, and forms a fully balanced ear amplifier architecture through two. M11 Plus LTD also adopts a modular unit circuit design. Each analog circuit has a shielding cover, and the analog and digital circuits are isolated to reduce the interference between them. At the same time, it also applies the fourth-generation FPGA clock phase-locked loop technology developed by Feiao, with two NDK customized femtosecond crystal oscillators, so that the entire audio system has a unified clock source with high precision and low jitter. The audio data is deeply reorganized through FPGA to make the audio stream purer.

mentioned earlier that the suspension of the Samsung Exynos 7872 used by the M11 Pro is also one of the reasons why Feiao replaced it and launched the M11 Plus LTD. On M11 Plus LTD, it uses Qualcomm Xiaolong 660 with eight cores and a maximum dominant frequency of 2.2GHz. At the same time, its memory reaches 4GB, with 64GB of storage space, the performance is enough to meet the needs of users.

in terms of wireless audio performance, M11 Plus LTD has also improved. First, the standard of Bluetooth chip used is upgraded to Bluetooth 5.0. Secondly, in the past, the player supported SBC and LDAC Bluetooth reception, while M11 Plus LTD took the lead in realizing AAC encoded Bluetooth transmission and Bluetooth reception, allowing iPhone users to enjoy better sound quality. Overall, M11 Plus LTD provides Bluetooth transmission support for SBC, AAC, aptX, aptX-HD and LDAC, as well as Bluetooth reception support for SBC, AAC and LDAC.

System and Operation Experience

is turned on for the first time and the wireless router is connected through the Wi-Fi, the drop-down menu of M11 Plus LTD will automatically prompt for a new version of firmware for online update, just like we receive a system update push on the mobile phone. At present, the latest system version of M11 Plus LTD is 1.0.2, and we will also update the prototype to this version for experience. According to the information "about equipment" in the system, it can be seen that the system of M11 Plus LTD is Android 10, which should be one of the earliest music players to adopt Android 10 at present, and it is also a big improvement of M11 Plus LTD compared with M11 Pro at the system level. At the same time, Feiao still carried out in-depth customization on the basis of the native system-including redrawing of more than 100 icons, customization of dozens of interfaces such as desktop, Wi-Fi, Bluetooth, charging, etc.

5.5-inch, 1440 × 720 resolution screen has good display fineness, and except for the slightly wider bottom border, the other three sides are basically filled with the screen, which is definitely the "full screen" on the player ". Therefore, from the perspective of visual effects and operating experience, M11 Plus LTD is no different from our commonly used Android smartphones, and it is easy to use. In addition, it is worth mentioning that Apple Music application, which has been unable to be realized before, can also be used on M11 Plus LTD this time. Users can download and install it in Feiao market. In addition, M11 Plus LTD still provides a total of five working modes including Android mode, pure tone mode and USB DAC mode, and can also support global MQA 8x expansion. The third-gear gain adjustment also enables users to better select the appropriate gain range when matching headphones with different impedances.

Volume touch button integrated panel can bring more arbitrary operation experience

, let's talk about the operation experience of the volume touch button integrated panel. Its touch panel is very sensitive and the operation response is rapid, suitable for situations where the volume needs to be quickly adjusted. However, if the user wants fine adjustment or continuous adjustment, it is suitable for operation by short pressing and long pressing the buttons at both ends of the integrated panel. The problem with the sensitive touch panel is that it is easy to touch by mistake, because it is exactly where the thumb is when the left hand holds the machine. However, Feiao has taken this into consideration. Users have many ways to make it suitable for their usage habits. First of all, the maximum volume can be set for the system and touch slide. The user limits the maximum volume to the appropriate listening volume to avoid excessive volume caused by misoperation and ear explosion. Secondly, the user can set the "no operation automatic lock function" of the volume touch panel. After opening, only double-click the volume touch panel before its volume control function will be activated.

The physical Hold key also supports customization. You can select the key to disable after the Hold key is turned on, including the volume touch panel. In general, after familiar with the operation logic of the volume touch button integrated panel and making corresponding settings according to their own usage habits, it is more convenient to adjust the volume through this novel design on M11 Plus LTD.

audition experience

I used Feiao's new FH5s earplugs and M11 Plus LTD for audition. The standard earphone cable of FH5s can replace the plug, so I first tried the sound quality difference of the same earphone under the 4.4mm balanced interface and 3.5mm single-ended interface of M11 Plus LTD. Under the same conditions that the gain is medium and the volume is 65%, compared with a number of different types of music AB, FH5s is not only significantly increased in sound pressure compared with a 3.5mm single-ended interface under a balanced interface of 4.4mm, but also has an all-round improvement in various performances.

, for example, in the theme song of "City in the Sky" performed by the Children's Choir, the sound field space of FH5s under the 4.4mm balance interface is audibly expanded in both vertical and horizontal directions, accompanied by the sound level becoming more distinct, and the positions of front, back, left and right voices being more accurate and clear. For example, in the vocal songs with simple background music, the FH5s singer's image under the 4.4mm balance interface is fuller, the sound becomes more forward, and the density and details of the human voice become better. The low-frequency and high-frequency parts are also obviously different. Under the 4.4mm balance interface, the low-frequency dive is deeper and the sense of quantity is greater. The penetration power of the high-frequency part becomes stronger. After some comparison, the sound quality of the same earphone on the 4.4mm balance interface is obviously better than that of the single-ended interface, so I will connect the 4.4mm balance interface of FH5s and M11 Plus LTD for audition.

M11 Plus LTD has a sound "base" similar to M11 Pro-stable and balanced three frequencies form a solid "triangle", the sound field is clearly shaped, the vertical and horizontal spaces are open, and the sound is full of "energy". However, compared with the latter with a "instructive" neutral style, Feiao tried to add some different flavors in M11 Plus LTD this time. The presentation of sound is no longer the kind of completely calm appearance, from which the listener can feel more lively music, especially in the vocal part. M11 Plus LTD makes the sound more audible through "fine-tuning" of style on the basis of ensuring that the human voice is restored to reality and sufficient detail. With the three-dimensional plump image and solid sound density, the listener can feel more vitality from it. The low-frequency sense of quantity and dive has abundant energy support. It will not blow its head when diffusing, and will not be loose when condensing. It has a good grasp of the scale and can create a good low-frequency atmosphere. The high frequency is transparent and clean, with rich angular details, strong control over the sound, and it is easy to extend to the higher places. In general, M11 Plus LTD will not break away from the consistent impression given to users by Feiao player. The "fine-tuning" of this style is more likely to explore many possibilities of sound.

is written at the end.

can see that M11 Plus LTD has made targeted upgrades to the pain points of previous products from hardware to software on the solid foundation laid by M11 Pro, and its actual performance has also achieved a leap forward from many aspects. The launch of M11 Plus LTD not only has a simple tribute to AK4497EQ, the classic flagship DAC chip, "Let me see you again", but more importantly, from it, we can get a glimpse of Feiao's new ideas in the player product line, whether it is design, function, or software and hardware applications. It is worth mentioning that in addition to the aluminum alloy version M11 Plus LTD evaluated this time, Feiao has also introduced a stainless steel version, which costs 1000 yuan to buy for consumers who prefer stainless steel. In the future, Feiao may also launch M11 Plus LTD with other DAC versions, which deserves our continuous attention.

author:Microcomputer Official Microblog07-14 15:17

website: https://weibo.com/ttarticle/p/show?id=2309404658880046301494

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