thanks to science and technology aesthetics!!!!

@ Technology Aesthetics @ Everyone Test @ Feiao Official Weibo

thousand-dollar earphone market has always been a piece of cake for major manufacturers to compete with each other. It has iPhone7 led the upsurge of canceling the earphone jack for mobile phones, resulting in the continuous expansion of the market demand for Bluetooth earphones. Apple's airpods is light, beautiful and portable, but expensive. Android camp has different solutions. At the same time, the participation of many small manufacturers has made competition increasingly fierce. The fiio F9 Pro headset, BTR-1 Bluetooth audio receiver and the matching MMCX headphone cable to be introduced today can be said to have thrown a stone into the seemingly calm but undercurrent lake, causing ripples.

unpacking

In this evaluation, the unpacking process is synchronized in parallel. The following is the unpacking process and appearance evaluation.

earphone line packaging box, simple and clear, model is RC-MMCX1s, length is 60mm

box is printed with an anti-counterfeiting logo.

Bluetooth receiver packaging box, the front is marked with model BTR-1, Qualcomm APT-X support, and product front view

is drawn on the way to wear it, and the side of the box is the anti-counterfeiting label of Feiao.

F9 PRO is relatively large. In addition to the product model and product drawing, the front is also marked with the logo of Lou (knowles) and Hi-Res.

is relatively simple and has only some basic parameters.

the box is also affixed with Feiao's anti-counterfeiting logo.

Group photo ~ ~

earphone line is very simple, a earphone line and warranty card

BTR-1

Open the box cover is the main body of the Bluetooth receiver, simple and direct

receiver are accessories and warranty cards, instructions

accessory has a micro usb charging cable with a short length

The other is a lanyard. The instructions describe the basic operation.

F9 PRO has only one logo on the front, which is very simple.

open the lid of the box, you can see that the entire box is divided into two parts, the unit and the storage box.

storage box adopts mirror technology and is matched with subdivided facets. It has a sparkling feeling on the lake surface, which echoes the name "Ripple" of F9 PRO headphones.

The lid of the box is opened as a storage bag made of diving cloth.

storage bag is opened with two earphone wires, namely, 3.5mm wire-controlled earphone wire and 2.5mm balanced end earphone wire.

Feiao's F9 PRO places the unit, the earphone cover and the earphone line separately, and places the earphone unit inside the shock-absorbing sponge, highlighting the unit body and the metal texture.

headphones come with three pairs of silicone sleeves and a pair of sponge sleeves, each with three pairs, a total of 12 pairs, and there is always one pair suitable for you.

instructions, warranty cards, etc.

family photos, "the most important thing for a family is to be neat"

Appearance Comments

RC-MMCX1s is short in length (60cm), which effectively avoids the embarrassment of hanging to other objects and tearing off the earphones caused by too long earphone wires. At the same time, MMCX interface is adopted, which can be compatible with quite a few earphones and has excellent compatibility. The gold-plated design adopted by MMCX pins and 3.5mm plugs can effectively prevent oxidation. The wire is woven, and the overall feel is soft and easy to bend. The splitter is also made of metal with the words "Fiio" printed.

BTR-1 Bluetooth receiver is very beautiful, after all, it is If award-winning product (laughter). There is only one button and two power lights on the front. The red and blue lights at the bottom are used to display the working status. The light in the middle of the button is used to display the sound effect on/off. Double-click the button to switch. The shell is made of aluminum alloy, and the stripe shape is conducive to anti-skid. The lower part is made of plastic, which is conducive to signal transmission. The back is a metal clip, and the upper part of the clip has a lanyard hole for easy carrying.

The 3.5mm earphone cable provided by the earphone is colored in order to distinguish between left and right. The left side is blue, the right side is red, and all are gold-plated. The wire feels moderate, the surface rubber is non-slip, and the ear is hard, which is easy to fix the position..

wire control is an obvious three-stage design, the key feedback is crisp, the volume key at both ends is slightly higher than the play/pause key in the middle, simple and practical, and the false touch rate is low.

2.5mm balanced earphone wire is woven wire, MMCX pins are also distinguished by color, the overall feel is soft, and the ear is hard, which is convenient to wear.

F9 PRO is made of aluminum alloy. Through CNC technology and manual polishing, the surface of the cavity presents a frosting effect. The corrugation of the shell echoes the name "ripple", which not only plays the role of reinforcing ribs to increase the internal space, but also eliminates the resulting resonance phenomenon. On the whole, Hue is delicate and delicate, without the cold stiff feeling of metal, but very Hue is delicate. Thanks to the excellent workmanship, the F9 PRO cavity has no obvious seams and the overall treatment is excellent. The words "PRO" and left and right marks are printed on the back of the cavity. At the same time, red and blue left and right color marks are printed on the MMCX interface, which is exquisite.

Headset Experience

:

After wearing for a period of time, I have to say that F9 PRO is very comfortable to wear. At this time, it is also a manifestation of excellent workmanship. The bending angle of the catheter is very satisfactory. Both the sponge sleeve and the silicone sleeve are very stable and the basic movement will not fall off. It is no exaggeration to say that this earplug is the most comfortable earplug I wear except Shure and Westen series.

sound:

, we have always paid attention to "turning the original soup into the original food". Since the earphones are all Fiio's, let's test the player with Fiio!

player used Fiio's X7 Mark II and was tested with 3.5mm and 2.5mm respectively, and compared with F9.

test tracks: Cai Qin "Ferry", Eagles "California Hotel", taylor swift "shake it off", Ed Sheeran "Thinking Out Loud" and Johan Söderqvist & Patrik Andrén "BattleField One"

after a period of testing, F9 PRO headphones and F9 headphones give people different characteristics. F9 PRO gives people the feeling like "ripples in the lake". The sound spreads out in circles like ripples. The sense of continuity is very good. F9 is like a small pool of water on a glass plate, giving people a loose feeling, and the connection part of the three frequencies still lacks some heat. This gap should come from the unit gap and the difference in tuning.

Lou's official data sheet can also explain the problem

understood that the TWFK-30017-000 of F9PRO's composite moving iron unit comes from the famous moving iron unit manufacturer Lou (knowles), while F9's unit is a domestic unit, from double sound. Lou's and Shengyang are both famous unit brands in moving iron headphones. Shure, Westen and domestic customized QDC units all come from Lou's. The addition of large factories makes F9 PRO's sound very natural. For example, in ADELE's "HELLO" song, the human voice is full of expressiveness, and the performance of stringed instruments is also very good, smooth and warm.

is responsible for the composite moving iron unit, and the low frequency is the work of the moving coil. The moving coil unit of F9 PRO adopts PEK polymer nano-compliant diaphragm, which is mainly characterized by strong toughness, fast speed and light weight. This is reflected in the fact that F9 PRO has a good sense of low frequency and excellent texture for pop music. For example, Taylor Swift's "shake it off" requires excellent control over low frequencies and can "release and return". F9 PRO has undoubtedly done very well. We will find that the moving iron and the moving coil unit of F9 PRO are not separated by the sound guide tube, but the sound of the two is output uniformly by the cavity and the duct. The sound is mixed in advance and complements the frequency divider, making the connection of F9 PRO very smooth. Although some analytical power and permeability are sacrificed, Lou's excellent training can be partially recovered, and the other part becomes the victim of a good sense of atmosphere, this sacrifice is worth it. The good atmosphere makes this earplug suitable for listening to songs for a long time, and will not make people feel relaxed and happy after listening for a long time.

Although compared with se535, which highlights medium and high frequency moving iron headphones, F9 PRO sacrifices some permeability, this does not mean that F9 PRO's high frequency is dim. The frequency response range of F9 is 15Hz to 40kHz. In the test, the high frequency of F9 PRO is colorful, the resolution is quite good, and the sound suppression is also very good, which just became the finishing touch of this earphone. The earphone comes with two wires. The single-ended wire quickly loses in comparison with the balance wire. The balanced output of X7 Mark II has better quality and thrust. The 5N oxygen-free copper silver-plated earphone wire is even more powerful, and the overall hearing feeling is improved to a certain extent. Due to the different applications of single-ended and balance, no comparison is made. The fly in the ointment is that the human voice is slightly behind, which is a small regret.

summary:

F9 PRO is an earplug positioned in a popular style, with excellent workmanship and appearance, rich accessories, excellent atmosphere, low frequency with both quantity and quality, and good analytical power. Combined with the price of the 998, this earplug can be said to be hard to meet below 1000 yuan, even with some earphones in their early 1000. The small gold label is worthy of its name. Just like its name "Ripple", it broke the shackles of the short board of headphones below 1,000 yuan. However, it did not cause small ripples. Feiao can complete the layout of the 600-1000 yuan price range with F9 SE F9 F9PRO. This earplug is the strong enemy of many products.

Bluetooth receiver experience

About operations:

BTR-1 Bluetooth receiver has a total of three keys. The round key on the front is responsible for switching on and off, Bluetooth pairing, playing/pausing, and sound effect opening functions. Due to the concentric circle design of the keys, blind operation recognition is very clear and can be accurately pressed to the key. The key stroke is short, crisp and clean. The key on the side is responsible for volume addition and subtraction. Long pressing is to play the previous/next. It is worth noting that the BTR-1 comes with a microphone, so when inserting the earphone with microphone and wire control, the microphone and wire control of the earphone are not available, only the BTR-1 keys and microphone can be used.

BTR-1 is medium in the Bluetooth audio receiver, and the weight is not too large. It has texture and does not press the hand. The aluminum alloy on the front, the clip on the back, the mirror surface on the top, and the frosted plastic on the bottom make it easy to identify each side of the BTR-1, and there is no problem in the pocket. The clip on the back is very tight, and it is not easy to fall off when it is clamped on clothes. On the whole, I am very satisfied.

For endurance:

BTR-1 is not bad. The official said it was 8 hours, and the actual measurement was about 7 hours and 50 minutes. There is absolutely no problem with light use for 2 days and heavy use for 1 day. Its standby time is not short, and its overall endurance is outstanding. Xiaomi Bluetooth receiver with similar price is inferior to BTR-1 in both endurance and function. The charging situation is also good. It supports 5V2A charging, which is much faster than 5V1A small water pipe. There is no problem when it is full in 2 hours. As a Bluetooth audio receiver, fast charging and long-term use is the highest indicator. At this point, BTR-1 has done a good job.

About links:

is a lossless Bluetooth audio receiver, of course, links are also very important. Sony's LDAC is certainly good, but unfortunately there are too few supporting devices. Qualcomm's aptX Bluetooth connection technology adopted by the BTR-1 supports a lot of devices. Feiao's three players and many mobile phones support it, thus winning the enjoyment brought by lossless Bluetooth audio transmission for users, but ios users are afraid to enjoy it without happiness. After actual measurement, the Bluetooth connection of the BTR-1 is very fast. It is turned on, paired and used in one go. The user experience is very good. After the sound effect is turned on, the positioning of the game is very accurate, and the delay is also very low. During the daily listening to music, the connection is very stable, and there has never been Caton and drop.

about sound quality:

speaking of sound quality, we have to mention AK4376 chip.

, it can be seen from the technical manual that the DAC of AK4376 is 32bit. When the impedance of the earphone is 16 Ω, the thrust is 40Mw, and even 32 Ω has a thrust of 25mW. After actual measurement, it also has this certain ability for some big ears that are easy to push. When pushing Goethe Alice m1 with BTR-1, although it is not as good as the SHA900 earpiece in hand, my suggestion is to connect earplugs and big ears that are easy to push. Many earphones are of low impedance but low sensitivity, which requires the current of the earphones to keep up with. For BTR-1 Bluetooth receiver, it is really difficult to connect earplugs that are easy to push, such as Shure se535 in the author's hand. When AK4376 chip is used as slave mode, the highest sampling rate is 384kHz, and as Bluetooth audio receiver, it is slave mode, so the highest sampling rate is 384kHz.

connects the BTR-1 with X7 Mark II as a portable audio device. After the connection, the words "Qualcomm aptX" will be displayed, and the status bar will also display the words "aptX", marking the use of aptX for Bluetooth audio link. BTR-1, with the addition of aptX, there are many more details. However, compared with X7 Mark II, there is still a slight lack of reasoning and details, but this does not mean that the collocation of X7 Mark II and BTR-1 is inappropriate. Because for daily travel, except for one mobile phone, there is no need to hold other digital products in the pockets of clothes and trousers. X7 Mark II is also a "national brick" and its volume and weight are not small. After the BTR-1 is used with X7 Mark II, the X7 Mark II can be placed in the bag, and the music playback can be controlled by the keys. At the same time, it can be matched with the RCMMCX-1s earphone cable, which greatly increases the portability.

when the BTR-1 is connected to the mobile phone, the effect is immediate. The author uses Xiaomi 6 mobile phone. Although aptX is not displayed after connecting the BTR-1, in the developer option, the Bluetooth transmission is indeed aptX. The Xiaomi 6 used by the author does not have an earphone interface, but it has its own patch cord. The analog audio output from the mobile phone is connected to the earphone through the patch cord. The same use of F9 PRO headphones, BTR-1 can throw the mobile phone out several streets, the BTR-1 has better permeability than the mobile phone, higher three-frequency separation, closer human voice, excellent detail restoration, great improvement in sound field and image, which can be said to be earth-shaking changes. At present, the audio processing of most mobile phones is concurrently performed by the cpu. The use of BTR-1 achieves the experience of wireless but improves the sound quality, as a good player to push the mobile phone to cancel the 3.5mm interface.

summary:

in the current era when the 3.5mm interface of mobile phones is about to die out, many people are insisting on the 3.5mm interface because of poor sound quality. The emergence of BTR-1 has solved this problem, so that people will not be troubled by sound quality while using Bluetooth, and are more willing to accept the benefits of wireless. At the same time, it can be connected with different earphones, which also gives consumers more choices. They will not be limited to Bluetooth earphones. On the one hand, the original 3.5mm earphones will be reborn. On the other hand, other HIFI earphones can be selected for better sound quality. Combined with the selling price of 299 yuan, it is a great choice.

summary

, as a junior HIFI enthusiast, I am very optimistic about this device. It provides a simple and convenient way for consumers to contact HIFI, and also provides a more portable solution for HIFI players. Looking at these three products alone, one is (probably) the best popular style earplug within 1000 yuan, the other is (probably) the strongest Bluetooth audio receiver within 300 yuan, and the other is the earphone cable with extensive interfaces and good usability. When looking at these three products alone, they may feel that they are all very competitive products in their respective fields, but when thinking about these three products together, they produce a "trinity" effect, which is similar to Apple's airpods in price (the latter is about 1188 yuan). Maybe it will be slightly inferior in experience, but it can be said to be a complete victory in sound quality. It is very suitable for music lovers to buy. It is great to enjoy wireless and music at the same time. The combination of the three products has not only moved the market, but also moved consumers. This should be the effect of "one Hongxin Lake ripples. Finally, I wish science and technology aesthetics and Feiao better and better, and I also hope Feiao can make more excellent products in the future!!!

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