The front end of this evaluation is provided by the manufacturer, and the headphone studio is only selected for free evaluation, and the evaluation standard is completely consistent with that of self-purchased equipment..

one minute to learn about M15

reference price: 8998 yuan (official promise to guarantee the price for life)

Tuning style: overall balance, good permeability, high density, good dynamics, ample sense of space, and huge thrust.

is suitable for music type: omnivorous

Holding Comfort: Excellent//Normal/Poor

workmanship level:/Good/Average/Poor

Control experience:/Good/Average/Poor

Duration: 15 hours

Startup time: approximately 15 seconds

Bluetooth support: SBC/APTX/APTX HD/LDAC/HWA (transmit),SBC/AAC/APTX/APTXHD/APTX LL/LDAC (receive)

Balancing ports support a 4.4MM balancer interface and a 2.5MM balancer interface.

This machine has 64GB of storage space and supports a TF card with a capacity of up to 2TB.

sound quality score

scores of various qualities

Evaluation text

on December 28 last year, Feiao held a new product launch conference for autumn and winter 2019 in Guangzhou. He was invited to participate in the event and received a media evaluation machine at the conference site. The conference began to warm up a long time ago. M15 flagship player is undoubtedly the absolute core. Dual 4499 chips and fully balanced high-power earphones are the most noticeable places. After the conference, we received many friends' inquiries. Although Mu Yan made some feelings in Zhihu, it was not a formal evaluation after all. Compared with other media friends, our articles always come late, but it comes after all!

Optional color matching

M15 is the only color.

gives the impression that there is an irresistible passion in a low profile.

take off your coat, the inner box will look much more stable.

M15 is a walnut solid wood box, which is preferred by many flagship models of brands. It will appear more atmospheric and textured, and can better cater to the status and identity of flagship models.

M15 include:

1. One USB cable.

2. One coaxial adapter line.

M15 is 134mm x 75mm x 18mm, the length is a little longer than the IPHONE SE, and the width and thickness are greater than the IPHONE SE. Compared with the M11PRO we have evaluated before, the M15 will appear a little longer due to the protruding volume knob. However, due to its round edge shape, it does not appear to be significantly larger than the M11PRO visually, and the thickness is even thinner.

In terms of configuration, M15 uses two AKM flagship decoding chips AK4499, with first-class decoding capability and supports 768K sampling rate and native DSD512. USB decoding mode adopts XmosXUF208 chip and supports specifications of 768KHz/32BIT and DSD512; The ear amplifier adopts a fully balanced architecture. The op amp is OPA2211 and has a secondary excitation circuit. Under a load of 32 ohms, the output power of PO port reaches 490m, the balance port is as high as 800mW; The body has built-in 64GB of storage space, supports the expansion of a single TF card, and supports up to 2TB. Qualcomm's CSR8675 Bluetooth chip is used for Bluetooth, which supports Bluetooth 5.0. M15 supports common protocols in the market, including Huawei's HWA, but does not support AAC. In terms of Bluetooth reception, compared with the previous M11PRO,M15 supports a more comprehensive format, contains SBC/AAC/APTX/APTX HD/APTX LL/LDAC.

M15 adopts the fifth-generation classical column style, continuing the processing methods of Feiao Q1 MARK II/K3/K5RPO and other models, with the main theme of roundness. The material of the player body is not clearly stated by the official. From the hand feeling, it should be made of aviation aluminum. The left and right sides of the player body adopt concave design which is convenient to hold. Like M11PRO, M15 also adopts double-sided glass design and PET coating technology for the back cover. The glass panels before and after the factory are already covered with film. However, it is still recommended to purchase protective covers or storage bags when purchasing the machine, the M15 is still smooth to the touch. The player has excellent workmanship, and although the weight is large, it also belongs to the normal range.

From left to right, the top of the fuselage is a 4.4MM balance interface, a 2.5MM balance interface, a 3.5MM single-ended interface, and a volume knob. The volume knob should be mentioned separately. It has a breathing light. If the volume knob is adjusted when listening to songs, the brightness of its breathing light will change with the increase or decrease of the volume. In addition, the official also claimed that the knob reconstructs the ADC curve and can solve the bias problem of traditional analog potentiometers.

body, regular operation keys are distributed. It is worth mentioning that the bottom custom function keys (M11PRO is also available) are set by users according to their own needs. You can add one key to my favorite/switch EQ/enter Bluetooth decoding mode with one key, etc.

fuselage. The TYPE-C port supports QC2.0,MTK PE double fast charging and PD charging (the position of the interface is not in the middle of the bottom. I don't know if it is caused by the structural design, but I look a little uncomfortable for obsessive-compulsive disorder anyway).

M15 is equipped with a 5.15-inch full screen screen, Corning Gorilla Glass, with a screen ratio of 86%,10 touch, 1440 × 720 resolution, PPI of 312, full color and good fineness. Its screen data and M11PRO are estimated to be the same screen. M15 is equipped with a Samsung Exynos 7872 CPU, which has the same performance as Qualcomm's 625, 3GB of operating memory, Android 7.0 system, supports full screen gestures, and feels smooth to use. At the same time, it also supports switching to pure tone system, bringing better listening experience,However, it should be emphasized that M15 cannot use APPLE MUSIC,is said to be due to CPU. WIFI can support 2.4G and 5G frequency bands, M15 also supports FIIOLINK functions, just install Feiao Music APP on the mobile phone, you can wirelessly remote control the player, support common song operation and synchronous display, in addition, you can also use DLNA, AIRPLAY,WIFI and other functions to spread songs. If you have a speaker in your home, you can also use M15 as a USB DAC for decoding. Of course, he can also be used as a turntable device to connect other decoding earphones. Other functions such as EQ adjustment will not be repeated. Friends who have the opportunity to experience can play with them carefully and have very comprehensive functions.

Endurance

M15 is 7490mAH, and the official battery life is about 15 hours. The actual test of the author is not much different from the official description. The author uses the fast charging head of the mobile phone at home to fully charge M15 for about 2 hours (everyone has different power when charging, so there are many variables, for reference only). The machine heats up slightly during use.

Startup time, control, and grip

M15 is about 15 seconds, which can only be used as a reference, because the author does not have many applications installed in this device, and the startup time may increase after more applications are installed. As for the operation logic, there is no need to describe too much. Everyone should be very clear about using Android phones.

holding feeling, the width and thickness of M15 are all appropriate, the round edge has no cutting feeling at all, the weight of 307g is too heavy, and it is still a little tired after one-handed operation for a long time, so the holding feeling is good.

sound quality evaluation

: The sound quality evaluation part is based on the basic quality of headphones. Due to individual differences among listeners, the following contents are for reference only.

scoring system: The front-end (player, decoding earpiece and other equipment) is evaluated. We selected SONY EX1000, a classic moving coil earphone with neutral sound, less sound and high potential, as a fixed test earphone, to score the front-end and comment on the listening feeling concisely and intuitively. The front-end attribute scores are obtained by referring to a variety of front-ends of the same grade as the tested front-end. As the listening sense is briefly evaluated as a written description, there is a situation that cannot be accurately described. The headphone official suggests that the front-end score be the main listening sense comment as a supplement for reference. (The words used to describe the degree in the hearing comment are all compared with the same grade. By default, the earplugs use standard ordinary silicone sleeves, and all front ends are in low gain mode and use single-ended connection)

evaluation equipment

Front-end: ZX100, ZX100 + PHA3, HM901S, and M15.

headphones: SONY MDR-EX1000

Audio format: FLAC.

Evaluation Track

Popular: Jiangnan-Lin Junjie, Kite-Stefanie Sun, Ferry-Cai Qin

Rock: Sunburn-Muse

String: Carmen Fantasia-Mutter

Symphony: Voltava River-Kuberic

audition tracks include popular male voices, female voices, rock music, small orchestration strings, and large orchestration symphonies, which basically cover most of the daily music types. You can test the headphones and players for high frequency (the high-pitched part of the sound) and low frequency (The bass part of the sound such as drums), human voice, and analysis (the ability to restore the sound, it is equivalent to the resolution of the image), the sound field (the sense of space of the sound) and the positioning, the degree of separation (different sound mixing, the higher the degree of separation, the better the performance level, and vice versa) and other main properties.

Listening

high frequency:M15 is matched with EX1000, the style is neutral and bright, because EX1000 itself has average brightness and good high-frequency extension, which is a good level at this price. Compared with products with higher prices, the high-frequency performance of EX1000 itself is not inferior. In addition, the high-frequency performance of EX1000 itself is relatively soft and stretched, and the lines are relatively thick. Under the promotion of M15, the overall style continues to be maintained, while, it sounds good.

vocals:the distance between the human voice is relatively close to the ear, the human voice has a clear mouth shape and is relatively smooth, but it still has a slight grainy feeling, the knot is of medium size, it is not a very small knot, it maintains a certain thickness, the overall is still a little bit neutral and warm, the human voice positioning is relatively clear, and the density should be at the normal level in the same price.

Low frequency:M15 mainly controls the low-frequency sense of EX1000, maintaining its original good atmosphere and preventing the sense of quantity from overflowing. At the same time, it focuses on strengthening the diving and rebound speed. The whole low frequency is well balanced between the speed tightness and the atmosphere.

Analysis:did well.

sound field and degree of separation:sound field performs better at this price, both horizontal and vertical, and relatively large, and the performance of separation is also good. Combined with sound field performance, it has a good sense of hierarchy and space in symphony.

Other aspects:the sound density is relatively high, the whole is relatively clean and transparent, relatively balanced, the dynamic is very good, the transient is slightly worse than the dynamic, but the performance is still good, M15 mainly plays a role in strengthening the quality of headphones, and does not show particularly obvious in terms of atmosphere contrast.M15 has a lot of thrust, especially after switching to big ear mode, we have tried to match some big headphones, and the performance is quite good. M15 can drive it well.

balance mouth hearing (using headphones is DK3001, the difference between 4.4 mouth and 2.5 mouth is not obvious and audible, so it is described together)

the biggest feeling of the two balance ports is that the thrust is much larger, thus bringing the sound with better dynamic performance, and the improvement in symphony is the greatest. At the same time, under normal circumstances, there are some separation degrees, high-frequency line fineness, and the improvement in analysis. There are also M15 balance ports, and the improvement is not bad.

overall evaluation

M15 has been playing for many days, the author is quite satisfied with its comprehensive quality performance, and generally speaking, it is not up to the name of flagship. The appearance, workmanship, details and playability are not repeated here. The description in the text is quite clear. Feiao is still one of the leaders of domestic players in this respect, and it is also in a leading position overseas. In terms of sound quality, it is also OK. Although it is not the kind of level that jumps out of this level and reaches a higher level, it is still very competitive horizontally. The sound of the player is still relatively balanced. It has a solid strengthening effect on high frequency and low frequency, and has a good improvement in extension and diving. However, the author thinks that the human voice can do better in terms of smoothness. In addition, what the author wants to say most is that, in fact, from a certain point of view, our evaluation of M15 is an incomplete performance, because the huge thrust of M15 is already easy to drive earplugs, which also makes it better to combine with big ears, which is not visible in our evaluation system. We can only mention one or two sentences, I hope some friends who hold M15 and big headphones can share their listening feeling!

author:Select the headset02-10 13:59

website: https://weibo.com/ttarticle/p/show?id=2309404470418789498983