just introduced FiiO's cost-effective artifact M11 a while ago (please refer to this issue of July 454, 2019). The manufacturer has made persistent efforts to launch the M15, which is free of cost, using the current top decoding chip and OP Amps, coupled with the driving force of ear expansion level, pushing the flagship player to another peak at one go.
looking at the pricing of M15, it is several times higher than that of M11, and there is an immediate uproar for price-sensitive friends. but to be fair, first look at the connotation of M15. the market price of a AK4499EQ chip has exceeded HK$700, which is 10 times that of M11 AK4493EQ. USB, bluetooth, femtosecond crystal oscillator and FPGA chip are always over 100 yuan, plus 2 OPA2211 Low Pass Filter, as a conversion and 4 OPA1622 OP Amps/Buffer Amps, and FPGA A3P030, the cost price of 4 OPA1612 chips alone is several thousand yuan, which is many times higher than the cost of M11, and the price is only three times that of M11. Other brands need to be configured like this. I believe the price will be tens of thousands more, so the pricing of M15 must be extremely restrained.
flawless boutique
and following the machine are no longer burdensome. The operating system is not too far from the previous M11. Please refer to the previous article. As soon as the new machine is started, if you pay attention to it carefully, you will find that there is no screw on the machine body. The whole machine is perfectly joined, like a flawless work of art. It is believed that the peak of construction has reached the quality of German industrial grade. I wanted to transfer the file to M15 through the computer, but after plugging it in, I found that there was an extra disk. It was not allowed to copy into the file. Only the driver was provided. M15 can be seen only after the driver was installed. The original M15 used Linux File System, so the driver was installed for the first time, because the author had two computers and found out why one needed to install the driver, and the other one doesn't need it? Later, it was discovered that "Windows Subsystem for Linux" had been installed on Windows 10 computers, and the driver could be exempted.
using a USB cable to connect the computer, a disk will appear with an M15 driver, which is also supported by Mac and Windows.
M15 originally uses Linux File System, so the driver must be installed when it is used for the first time.
can also use wireless to transmit music files. You only need to connect M15 and your computer/mobile phone to a wireless network to transmit music files. The mobile phone only needs to install "FiiO Music" Apps to transmit music files.
high resistance famous thing
want to know how strong M15 is, of course, we have to challenge the difficulty. The meter with 300 Ω high impedance Sennheiser HD 800. The ear expansion that is not enough for class can only make a sound when driving HD 800. The sound is not angry and heavy, and there is no bass at all. We need to check the ability of M15. Of course, with the Titanic original soundtrack, the ultra-low frequency immersion without energy cannot be pushed out, on M15, the high impedance mode was turned on, and then the large earphone mode was turned on. The volume was enough (I. e. 90/120) to about three-quarter. Both the sound field and the analytical power were extremely high. At the beginning, the bagpipe was already flowing. When the middle ultra-low frequency came out, the "long ~" was extremely cool. The strong and touching ultra-low frequency was extremely high, the whole head has been shocked continuously. Although it is half a minute of music, it has been extremely enjoyable. In the past, it can only be done by heavy-duty ear expansion with mains power. Players without ear expansion are rarely driven so well. Even when the average ear expansion reaches 300 Ω with high impedance, it is only about 30mW, while M15 provides a powerful output of 70mW. If the balance terminal is used, it has a final output, it's shocking enough. I have listened to a lot of ear expansion with HD800 and pushed it in an orderly way. M15 is one of them. For those with high impedance headphones, M15 single machine can already control it and is definitely a famous thing that cannot be missed.
audition experience
this album "wow" as soon as it opens, I can't imagine that the recordings of the 60s can be so shocking. The tapes taste like the 60s, but the sound field positioning analysis has the shadow of modern high-definition music. It is indeed transcribed directly by the master tape. Coupled with modern master tape processing technology, it has excellent effects and a series of albums that enthusiasts cannot miss; under the sound of M15, not only exudes the breath of traditional Japanese culture, the layers of sound fields, precise positioning of musical instruments, high analytical power, but also a rich sense of music, which is overjoyed. There is no shortage of familiar music in the album. For example, the 8th song [Li Yu Qiu] is written by Japanese nursery rhyme composer Hai Numa Shi. Maybe everyone is still confused. However, if it is Xu Xiaofeng's [Miss You Every Day], I believe everyone will understand that this is the original work or the 10th song [Cherry Blossom]. A familiar traditional Japanese music will also resonate with everyone.
, I believe many people have no big impression, but if it is mentioned that the [first love] sung by Yuchi Koji and Lin Zhimei are all written by him, everyone will suddenly realize it! In fact, there are many Hong Kong singers who have adapted his songs into Cantonese songs, such as Guan Zhengjie's [Sunset Love Song], Lin Shanshan's [Maybe Young at the Time] and Lin Zhimei's [Baptism of Love], but it's a pity that Murashitao fainted in a concert in 1999 and left like this ...... This album was released 20 years after he left, featuring classic romantic songs in the past, there are familiar melodies, and some are listened to for the first time. The entire album is easy to listen to, with high-quality recordings, and the overall balance is high. In addition, the use of Japanese Sony M1ST monitoring earphones to enjoy Japanese songs is more suitable. Regardless of the vocals, background music, other musical instruments and all details, M15 performs very well, benefiting from M15's ultra-high analytical power and appropriate sound thickness, it makes people feel very warm, eliminating the indifferent digital flavor of archives.
this album is a version in DSD128(5.6MHz) format. It is recorded in the church. The environment is open and has a small amount of echo. It is definitely a good place for recording. The booklet of the record introduces in detail how they install the recording microphone, and the position of the human voice, piano, trumpet, double bass, etc., when listening, it is also easy to correspond to the positioning of the instrument, the high pitch is elegant, the balance is high, and the air sense is strong. In addition to the main instrument, other miscellaneous sounds such as sweep, sand hammer, bronze cymbals, etc. are also clear and audible. M15 not only takes into account the analysis and positioning, but also handles the atmosphere of the music. It is not like listening to high-definition files, but enjoying music, music has life, and M15 is about to bring this vitality out.
summary
M15 not only has the appearance of an artwork, but also uses top-level decoding to provide ultra-high analytical power. It will not reduce the bass to make the sound more transparent. On the contrary, it will adjust the sound to a thick, warm and fleshy place without losing the analytical power, making the human voice more beautiful and moving, and the musical instrument more musical. This time, two monitoring treasures were used. No matter in the human voice, musical instrument or, with its stingy materials, exquisite craftsmanship and enthusiasm for music, M15 is definitely a flagship player with a price-friendly price, and has the ability to compete with the flagship machine of international brands for a day. On the other hand, M15 is not without shortcomings. The wooden box made of natural North American black walnut wood used for packaging is both noble and beautiful, which is no less than the watch box of million-dollar watches. Unfortunately, it can only be used, at the moment of unpacking, it will be sealed for a long time. Psychologically, I always feel a little wasteful. Such precious wood and such good craftsmanship can only be enjoyed once. I think this is the only shortcoming of M15.
Specifications:
■ CPU:Exynos 7872 ■ DAC chip: AK4499EQ × 2 ■ USB type: Type C ■ maximum support specification: 768kHz-32bit | DSD512 hardworking ■ screen: 5.15 inch 1440 × 720 full fit 10-point touch display ■ size: about 134 × 75 × 18mm (excluding scale knob) ■ weight: about 310g ■ charging time:<3.5h ■ battery capacity: 7490mAh high voltage fast charging lithium ion polymer battery ■ endurance: 15 hours ■ frequency response: 20Hz ~ 90kHz(-3dB)■ output power: 1:490mW(32 Ω/single end/large eartube mode) ■ output power: 2:70mW(300 Ω/single end/large eartube mode) ■ output power: 3:800mW(32 Ω/balanced/large eartube mode) ■ output power: 4:280mW(300 Ω/balanced/large eardrum mode) ■ signal-to-noise ratio: ≥ 122dB(A weighting) ■ output impedance:<1.4 Ω(32 Ω load) ■ bottom noise: PO <2.1 μV(A weighting);BAL <3.8 μV(A weighting) ■ THD N:<0.0004%(1kHz /10 kΩ)
author:Original TextHong Kong Audio Technology202/10/23
URL:https://mp.weixin.qq.com/s/2z35a9G5H89nk4M7RIch4g
