The most expensive domestic titanium diaphragm earplugs flying A81 evaluation

Fei Duo A81 this plug I got the hand last year, but has not written the evaluation, not because the sound is bad, can not write, but the wearing problem, A81 is not suitable for my ear canal. A81 cavity It is relatively round, the belly is relatively large, and the catheter is relatively short. When it is worn around the ear, the ear is not deep, the sealing is not strict, and when it is slightly moved, it will slide out of my ear canal; while the anti-wearing, the earplug part has metal. Stereotype line, relatively hard, will lead the collar, resulting in a more obvious stethoscope effect. Although this plug I usually do not listen much, but recently more leisurely, so with both hands holding the ears audition for several days, so come Fill in this review article.

Feiduo is a relatively new domestic acoustic brand. It is also known that they are introduced by friends in several circles. The A81 is interested in the fact that it uses titanium polyester unit. It is said that this diaphragm is more than ordinary titanium diaphragm. Better physical characteristics, improved vibration accuracy, transient response and flexibility, so it evoked my interest.

Appearance details

As a four-digit earbud, the flying A81's packaging design is not bad, using double-layer packaging, the outer envelope and box are paper, and the inner box is PU leather.

The inner box is also more exquisite workmanship, black PU leather and red lines, looks more like a jewelry box.

A81's accessories are very rich, everyone directly look at the picture, I will not introduce them one by one.

The A81 adopts a changeable headphone cable design, and the connection part adopts the same pin insertion design as the UE. Two earphone cables are provided, one of which is a call line, which has a microphone and a wire control, is suitable for mobile phones, and is made of high purity. Oxygen free copper.

The other wiring is made of 28 copper-plated silver foil wires. The influence of the sound of the two wires on the plug itself is not great, but the A81 sound under the braided wire will be more transparent and high-frequency. Fine.

The outer casing of the A81 is not made of metal or a material that sounds very toney, but an ordinary plastic material. Although the surface has been painted with a lot of paint, it still looks less beautiful and less expensive.

The cavity of A81 is relatively large, especially the inner side is very round, so I will wear it a little problem.

I have two sentences about subjective listening. Generally speaking, listening is more subjective, related to personal preferences, insights, opinions and stereotypes, so there will be differences between black and white, but only guarantee Intrinsic and objective, abandoning the influence of the outside world, from the level of music itself, its description will not be too biased. I also think that the equipment that is really done with heart, it is not good or bad, only gains and losses, even if you do not like There is no need to open black.

Back to Feiduo A81, I feel that its voice is relatively neutral, but it is highly qualified, but it is very delicate and has a charm. At first you may feel that the sound of A81 is a bit like moving iron, and it is more cold. However, because the mid-high frequency sound line is very delicate and smooth, the overall style is more moist and sweet. If you listen carefully, you will find that it has a slight warmth in the cold, and a little sleek in the cold.

The following audition front end is the Sony Walkman ZX1, a front end that is very balanced for direct push and has a fairly high quality.

Mid-high frequency: Vivaldi's "Four Seasons" is a violin concerto that is very suitable for classical introduction. The author uses the violin to describe the scenery of spring, summer, autumn and winter. It is very substitutive. If you have read the author's notes The words of the sonnet will have a deeper understanding of the situation. The "Famous Four Seasons" is one of the classic versions played by the violin master Salvador Akado, and it is also the version I often listen to. Listening with the general moving iron earplugs, although the details are well-placed, in the spring chapter, it will be relatively cold and lacking charm, and the performance of the A81 can be said to be quite good, the detailing and display ability is no less than The high-end moving iron, and a little warmth, has produced the artistic conception of the spring breeze in the repertoire. I don't mention the specific performance of the medium and high frequency aspects such as extension, convergence, burr, brightness, and fresh life, because I think the A80's medium and high frequency. Performance, in the earplugs I have heard can definitely enter the top five.

Vocals: I will be more subdivided in listening to vocals. Different vocals will choose different headphones, because even male or female voices will be more generous and slender. For example, European and American female voices will be compared. Thick, take a more explosive and strong genre route, and Asian female voices tend to be slender, and take more sensational fresh routes, so vocals are the most variable part, the listeners' preferences are different, the reference standards are different, will cause I feel that the A81 is more suitable for lyrical female voices, the sound density is very good, the analysis is high, the tooth sound control is also good, listening to the powerful singer singing, very taste, but because the thickness of the sound is not high, in Europe and America In the genre and male voice, there will be a certain lack of sense of sorrow, and the taste is slightly worse.

Low frequency: The low frequency of A81 is enough in most popular music, but it is not suitable for R&B, dance music and some movie original sounds, mainly because the small size titanium diaphragm is better in rigidity, but the elasticity will be less, so the low frequency part will It is obviously thin and has less harmonics. The main manifestation is that the drums are not enough for dive, and the elasticity is slightly poor. In the popular genre of low frequency, there will be a lack of envelopment, and in some movie soundtracks, there will be a lack of momentum.

Analytical force and resolution: Because of the relationship between titanium diaphragm, A81 is very good for medium, low and high frequency analysis, especially for low frequency, which surpasses most moving coils. And instrumental and instrumental, vocal and instrumental music The resolution is also quite good. In general, the resolution and resolution of the A81 can exceed most of the dynamic earplugs. Compared with the high-end moving iron earplugs, it is not too much.

Sound field and phase: As an in-ear earplug, the sound field of A81 is still relatively open. Although it is not comparable to Sennheiser's IE8, it is not much worse than the same level of moving iron. In classical music. Among them, A81 is enough for the small and medium-sized chamber music, the scale of the sound field is relatively regular; in the popular songs, the positioning of the vocals is relatively high, the instrumental music is basically around, can feel the obvious sense of envelopment and the sense of positioning of instrumental music. .

Transient: The transient of A81 is fast, which is caused by the characteristics of titanium diaphragm. Therefore, in the middle and high frequency part, its sound line will appear relatively neat and bright, and it is more suitable for the violin and piano of the Allegro. A quick transient will cause the bottom to be thin, so the drum sound will appear thinner, and the cello's sound will be less melodious. (Transient fast and slow have their own taste, different tracks have a transient need It is also different, so there is no good or bad here, only gains and losses)

Matching: A81 does not eat thrust, the general player can drive well, but because the resolution of A81 is better, it is better to use the front end with a larger amount of information. If you think the low frequency and vocals are not thick enough, You can also try to match the low-frequency, warm-end front, to make up for the taste, such as: HM901 and A844.

To sum up, if you don't consider it is a domestic plug, refer to UE900, then A81 is a good one. I think A81 and XBA-H3 are complementary, one is in the middle, one is in the middle, and the other is on different types of tracks. Performance is exactly complementary.