HIFI headset set covering all usage scenarios-Feiao F9PRO headset BTR1 Bluetooth receiver combination

I was excited when I saw everyone testing the combination evaluation of Feiao F9Pro and BTR1. On the one hand, I just bought a Feiao X5 3rd generation player because I didn't have a good enough earphone. On the other hand, I felt very painful when I bought a good earphone and couldn't use it well on iPhone.

This is also why the combination of F9 pro BTR1 makes me feel moved. After all, the Bluetooth receiver with independent dac on the three-unit earphone can meet my needs, so I applied for it in the first place. Thank you @ everyone for asking me to try it out. Needless to say, let's see how the combination performs.

Headphones: F9 PRO

Feiao's F9 series is actually divided into three product lines, F9 F9SE F9PRO. The difference between the three basically lies in the unit and whether the line can be changed. The F9PRO evaluated this time is the top model in this series. The specific difference is actually reflected in the outer packaging box. The huge "Lou's" logo in the lower right corner proves that it uses the Lou's moving iron unit, this is where PRO evolved compared to the normal version.

frosted texture should be the correct appearance of F9 RPO packaging. The volume is not small and small, so the internal stack is relatively compact. However, it looks a little fall in price. The visual focus is taken away by the box. Ha, ha, ha

box is divided into three parts, namely, the storage box, earphone and earplug cover, which are visited by three modules, while the other things (mainly wires) are cleverly stored in the storage box.

let's talk about the storage box. This storage box has been widely praised by players since Feiao was launched. The square shape provides more three-dimensional space. The irregular surface pattern on the top of the box can be said to be thousands of people and faces. It is very personalized. The lid of the box is not stuck very dead, and the opening and closing feel is quite friendly. The inner layer has a separate rubber waterproof layer, which can achieve a good waterproof effect together with the raised indentation of the upper cover. Of course, this box has an obvious disadvantage in my opinion. Its surface is polished plastic, which is easy to scratch in daily life, and it is quite obvious that it is stained with dust. Daily cleaning will be more troublesome.

This time PRO provides 4 different specifications, each with 3 sizes and a total of 12 sets of earplugs, including three different shapes of silicone sleeves and a sponge sleeve. Let's not mention the influence of different shapes on sound quality. These three silicone sleeves all use frosted surfaces. Compared with the general silicone surface, the advantage is that they are easy to clean. I think this earplug is worthy of promotion by all earphone manufacturers .... Ahem, apart from other things, these earplugs have a common disadvantage, that is, the overall size may be a little larger, and the difference between the three sizes is not so big, which is a bit uncomfortable for some girls to wear.

earphone cord and a soft storage bag are hidden in the storage box, which is why PRO's packaging box can be so small. This time, there are two earphone wires as standard, namely, 3.5mm belt wire control wire and 2.5mm interface balance wire, of which the balance wire is wound woven wire. Both use L-shaped plugs, and the durability should be very good.

F9 PRO's earphone design adopts an interchangeable line design, so the structure is the same as most high-end earphones with wires connected above, and the earphone shape is relatively round to fit the outline of the ear. Although it is a technical material shell, the weight burden is evenly shared and will not cause discomfort.

F9 series very much. The corrugated shape on the surface of the earphone gives it the title of "ripple. Compared with the flamboyant appearance design of many in-ear headphones, I think this low-key and restrained style is more suitable for most people. The shape of ripples can also be related to sound wave transmission. Of course, the kind of friends who pursue high recognition at first sight may be dissatisfied with this design. This is a matter of opinion.

on the inside side, to be honest is a bit disappointing. The round shape is not a big problem. After all, the front is also round shape. Besides, it fits the ears. There are two main problems: 1. Regarding the logo of the left and right ears and the logo of PRO, although I understand that Feiao's design is to distinguish the PRO series from the other two models conveniently, I really cannot accept this direct printing of large characters, there is quite a sense of "no design is the best design. The two air holes behind them can only be said to be bad-looking. Although I fully understand that their presence can improve sound quality performance, the location of this opening looks to make the headset feel like fall in price. After all, as a headset priced at 1,000 yuan, F9 PRO should be more refined so as to meet people's expectations.

the MMCX standard interchangeable interface design used in this earphone, you can easily find a good replacement line for all enthusiasts. A turn of thread on the unplug socket can help the link between the wire and the earphone more closely, which can be regarded as alleviating worries. The picture shows that the split seam of the earphone is a bit large. In fact, it's just because my magnification is relatively high. The actual situation is much better than the picture. For metal earphones, it is still a little difficult to fit tightly.

The matching wire is 2.5mm balanced wire. It seems that the workmanship is still very good. The plug is thickened and reinforced, and a metal ring of response color matching the earphone is added to ensure that there is no mistake in assembly.

uses a lot of metal materials at the distribution line and the position of the plug. It seems that the earphone line itself should be strong. After all, this kind of winding always gives people the feeling of being weak. However, the actual kneading will make people feel much more secure due to the addition of metal materials.

As described earlier, F9 PRO looks low-key when worn, but if you look closely, the recognition is actually quite high. Because it is made of metal, there is no sound of rubbing with the ears after wearing it. The thermoplastic tube of the wire can just go around the ear, eliminating most of the stethoscope effect. In addition to the unsatisfactory design on the back, F9PRO deserves praise while stepping out of its own design style in appearance.

Headset: F9 PRO Sound Quality

PRO adopts the solution of moving coil double-floor moving iron, with impedance of 28 ohms and sensitivity of 106dB/mW. The pushing pressure is not very large, and the general player has no pressure.

Because the 2.5mm balance interface has obvious improvement in sound performance, this performance is mainly based on this wire. The test equipment is Feiao's own X53. The test audio sources include my own DSD songs and FLAC format songs, as well as NetEase Cloud music songs that are not members.

First I listened to several violin symphonies, including solo and ensemble parts. The first feeling F9 PRO gave me was that the sound was "thick". The melodious feeling of violin solo is quite in place, and the corresponding part of other instrumental music such as cello and flute is also more powerful. At the same time, there is no feeling of overwhelming the host's role, and it sounds quite comfortable. In addition to the influence of the sound source, I noticed the noisy background that I didn't notice when this earphone was performing this piece of music, such as the breathing of someone and the stomping of a performer. This shows that the resolution of this earphone is really good, and the sound field performance is very good.

MJ's classic track "black or white" is a bit more inclined to rock songs among MJ's songs. This song is actually easier to hear the vocal tendency of F9 PRO. First of all, it gives me the sound of low-frequency drums with greater impact. It is full of elasticity, but it does not blow off the head and will not make people feel stuffy. This performance is the most suitable for my personal taste among the headphones I have ever heard. And other instrumental music and drums are also well combined. According to the introduction, the moving iron unit is responsible for the high frequency sum and its high frequency, so this part of the sound may still use the moving coil unit. In contrast, MJ's unique voice line does not give people a brilliant feeling under such low and intermediate frequency performance.

For this reason, I changed Heal The World to observe the vocal performance. Since there are not many low-frequency parts of this song, the vocal performance feels more prominent to me. Although it is strong in resolution, it will not reach the uncomfortable level and the sound is relatively warm.

changing to Dr. Chen's song, you can obviously feel that the tuning of F9PRO is running "enduring. The low frequency just said that the performance is very good, and the human voice is actually very expressive. I just said that the analytical power of this earphone is good, so the layering of the sound is quite in place. The doctor's voice may feel nothing like other earphones at first hearing, but the doctor's voice shown by F9PRO will be more powerful and clear if you compare the feeling. This is not only the credit of the double-acting iron unit, but also the credit of the tuning team.

changing to the electronic song F9 PRO is also very good. 24K magic, an Old school song, makes people feel like dancing more than usual under the good low-frequency expression of F9 PRO. Since I may have listened to more Ubeats at ordinary times, after listening to PRO, I found that the various instruments and vocals of this song are also organized, but my humble opinion is that the mix of this popular dance music should be stronger to be more exciting.

, however, it is really a kind of enjoyment to listen to the famous work "Bohemian Rhapsody" by F9PRO. The good analytical power adds icing on the cake to the harmony at the beginning of the song. I obviously feel the sounds of different parts of the left and right ears, and the gorgeous singing voice. Before the song even entered the chorus part, I produced a kind of psychedelic effect. The unique voice of lead singer Freddy is also very clear and powerful, which makes the appeal of this song even stronger. The slightly strong low frequency made the guitarist's solo part burst into my heart. In the end, it is no exaggeration to say that the song performed by F9PRO is the best version of headphones I have heard so far.

sum up is that the F9PRO sound performance is completely worthy of the 9.2mm moving coil and Lou's double-acting iron unit assembled with it. The low frequency is properly handled with moderate elasticity, the medium and high performance frequency is clear and clean, and the sound field performance is not bad under the 2.5mm balance line state. The only thing that makes me dissatisfied may be that the performance ratio between the low frequency and the medium and high frequency may not be in line with my aesthetics. While the performance of the low frequency is strong, I always feel that the voice is covered, which directly causes the expressiveness of the song Slightly decreased.

BTR1: Solution after the 3.5MM interface disappears

Although I have a player, the combination of Bluetooth headsets for listening to songs in daily life may be the combination of mobile phones. After all, it is still a little troublesome to carry a player with me, and it is more convenient for mobile phones to be resident and Netease cloud to update the music library Huiyao at any time.

However, even though the F9PRO standard 3.5mm interface wire and has a complete wire control function, the current problem is not whether it is compatible with 3.5MM. What is more serious is that more and more mobile phones cancel this interface.

yes! I'm talking about you! Apple! Since the 7th generation canceled the earphone interface, I have really encountered a lot of inconvenience. Although I have Bluetooth earphones, it is a pity that I don't have to have a good wired earphone in my home! However, Apple phones that cancel the earphone connector can only realize this function through the adapter, which also means that I can't use my own earphone when charging. It's really stupid. This is also why I will look at the BTR1 Bluetooth receiver that is proud of flying together. Under the condition that independent DAC is realized and many good earphones can be pushed, the volume is well controlled. Anyone will be moved.

together with BTR1 this time, there is also Feiao's own 60cm upgrade line. After all, Bluetooth receiver is used. It would be outrageous to bring a 1.2m long line, while a 60mm line will not turn you into a weirdo with a long wire, which can be said to be the perfect match for BRT1.

, let's take a look at the appearance of BTR1. This appearance, I wonder if you have thought of MP3s many years ago? At that time, there were many MP3s without screens that gave people this feeling. Of course, BTR1 has made great progress in the manufacturing process. In addition to the plastic area at the bottom for better signal strength, its body is made of aluminum alloy, supplemented by fine frosting process, and its hand feel is quite outstanding.

, because it is an independent Bluetooth receiver, Feiao BTR1 has designed a back clip with a large area behind it. The strength of the clip is not too great, but the pressure of clamping a garment is still not great.

interaction, all functions are concentrated on three keys. The circular primary key on the front shoulders multiple functions, and there is a colorful light in the middle of the center of the circle to show the working status of this independent receiver. Different pressing matches in this case can enable matching, EQ switching, play pause, phone answering and other functions. However, too many function integration may obscure our operation. Personally, I think we can consider the way of key combination to disperse the pressure of use.

to get down to business, this bluetooth ear provides a 3.5MM earphone connector on top of it, which is why I said it is a perfect match with the 60mm upgrade line. if you look at the length of the wire in the figure, you can feel that the wire is a little redundant if it is longer. However, it is a pity that this wire does not provide earrings and may need to be purchased separately.

the sound quality part can be said. Feiao's positioning of BTR1 is a Bluetooth earpiece, not a single receiver. Its internal decoding chip is equipped with AK4376, which is a chip specially designed for mobile decoding. nubia's z11 is equipped with this chip. Its quality is quite good. It supports SBX and aptx in coding, which covers Android camp and does not support Apple's AAC and the latest LDAC coding.

sound quality performance, as far as my current experience is concerned, I don't think there is much specific difference from direct-connected players or mobile phones. Even when listening to high-rate DSD format songs, I still don't feel much difference, probably because my ears are not HIFI enough.... However, in other words, it did not affect the sound quality performance, indicating that the goal of this Bluetooth earring has been achieved. However, you can still feel the slight delay during use, which makes people a little concerned. After all, slight out-of-sync of sound and picture during games or watching movies may affect the final experience.

will talk about its endurance. The official battery life data is 8 hours of battery life. According to my actual measurement, continuous medium and high volume playback can support 5~6. About 5 hours. Considering its own DAC chip and small size, it is already a good result to play for 6 hours.

summary

, just like the "national brick" in previous years, domestic headphones are also gradually rising. They are willing to use the best units in materials and try to take their own new path in design, which is a good thing. I saw such sincerity on F9PRO and BTR1. Feiao's pricing 998 did not give me the feeling that he made a headset with parameters to sell the 998 price. It was more like Feiao made a good headset like F9PRO and set the pricing at the 998 price for competition. As the first earphone I came into contact with Feiao, the sound quality of F9PRO can definitely impress people at this price. And BTR1 can see Feiao's determination to improve the quality of listening to songs in various scenes. Of course, the disadvantage that the human voice mentioned earlier is slightly overshadowed by low frequency is also real. This kind of problem belongs to the problem of tuning. After all, domestic brands still lack accumulation in this area, but it can be seen that they are catching up at an extremely fast speed. If I say that the current F9PRO is already worth buying, and looking for this trend, it is uncertain that there will be classic headphones in this series in the future, which is worth looking forward.

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