Feiao FA7: High Color Value Four-moving Iron Unit Earplug with Fine Tone Color

in the audio field, Feiao is an industrious little bee, and the speed of iteration of its new products is really admirable. If Feiao became famous through portable earphones in the early days and continued to gain fans through players in the middle, then Feiao should be ready to make efforts in the earphone product line. Starting from the highly praised introduction of F9 PRO, Feiao has successively released two products FH5 and FA7 with higher positioning for its own brand. F9 PRO and FH5 have been experienced before. Compared with the past cognition of Feiao brand, these two products provide more mature sound solutions, which is really a big step forward. However, the recently released FA7 not only has mature tuning, but also has obvious improvement in mold technology and color value.

FA7 box

Feiao's product model numbers are singular, with 1, 3, 5, 7 and 9, but at present, in addition to the relatively complete product layout of its entry-level F series, FH ring iron series and the newly launched FA flagship series still have great product potential. FA7 is currently a four-moving iron unit earplug with the highest positioning in Feiao. The pricing of 1999 yuan is also Feiao's first attempt. It is the mainstream price in the entire earplug field.

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Feiao now attaches great importance to the promotion of FIIO brand, which is also strengthening the impression of users.

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FA7 is the same as that of FH5, which is also a safe packaging. No matter how violent the express delivery is, the earplugs can be intact. It can be found that this time Feiao played a multi-color scheme for FA7 and introduced the "mandarin duck" color scheme. The combination of left blue and right red not only has a high color value, but also is very coquettish when taking to the streets, and it is easy to distinguish the left and right channels.

Red and Blue

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not only has the color value higher, feiao FA7 has also brought a new attempt in mold manufacturing. this earplug mold has been completed by DLP 3D printing technology. The principle is to solidify the photopolymer liquid layer by layer through a projector to create a 3D printed object. This technology is relatively mature at present. Compared with traditional 3D printing, DLP technology can obtain higher resolution when applied to 3D printing. The official claim is that the accuracy is as high as 25 μm and the cost is controllable. FA7 has completed an integrated seamless mold based on DLP 3D printing technology, which is reliable in both surface technology and mold strength.

product information

type: four-moving iron unit

moving iron: CI-22955 (low frequency), ED-29689 (intermediate frequency), SWFK-31736 (high frequency)

Frequency response: 20Hz-40kHz

Sensitivity: 110dB/mW(@ 1KHz)

Impedance: 23 Ω(@ 1KHz)

plug: 3.5mm three-pole single-ended plug

line length: 1.2 meters

modeling adopts male modeling

In order to play more tricks, FA7 adopted a male mold this time, and the material was skin-friendly resin. This also makes the earplugs more malleable, not only in ordinary colors, but also in mandarin duck colors. Later, more panels can be customized according to player needs.

transparent cavity

FA7 is transparent. It can be seen through the cavity that FA7 adopts an independent four-division three-conduit design, and the left and right channels are printed on the frequency division circuit. Earplugs are built with Lou's CI-22955 low frequency unit ED-29689 SWFK-31736 composite high frequency unit customized with intermediate frequency unit to ensure smooth connection of sound.

is an MMCX interface.

earphone cord is the same as that of earplugs.

headphone guide tube

FA7 still adopts the design of interchangeable wires. MMCX interface is arranged on the earplug cavity. The earplug was originally equipped with an unbalanced wire. The wire is the same as the original wire of FH5. It is a single crystal copper silver plated wire. The official model is LC-3.5B. Players can change the balance line by themselves.

FA7 after wire is connected, the texture and quality are excellent.

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Feiao, as a major accessory factory, is also sincere in the accessories attached to FA7.

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FA7 accessories have 12 pairs of earplug covers, which are classified according to tuning, and include balanced, vocal, low-frequency, and inert sponge pads. There are also two storage bags, a transparent waterproof hard box and a soft canvas bag.

FA7 with HIFIMAN R2R2000 Player

FA7 and Feiao M9 player

Because it is a male model, the FA7 is full of ears when wearing it, and the tightness is not bad. Its overall comfort is good, but it still feels a little heavy-bearing after wearing it for a long time. From our experience, Feiao FA7 is not difficult to push, even if it is driven by a mobile phone, it can perform well, the sound is easy to come out, and there is no bad noise.

On the whole, FA7 maintains the typical style of moving iron tone, with transparent and bright sound and high analytical power. At the same time, its tuning also has a delicate and soft side, which is not just tough. In the low frequency part, whether it is matched with R2R2000 or M9, its low frequency is stable and has a full sense of quantity, which is not the slender and thin of traditional moving iron. Its bass fluffy is good. When expressing drum music and double bass, the drum sound is loose. Although it is not very soft, it is not a hard voice. The sound positioning and speed are good; the piano sound is elastic and the sound texture is good. The strength and depth of the low frequency still have room for improvement, and the dynamic performance is moderate.

The intermediate frequency of FA7 is thick and rich in texture, the vocal adjustment is more accurate, the sound is not biased, the distance from the ear is moderate, there is no strong sense of ear sticking, and it will not feel greasy after listening for a long time. With excellent analytical power, you can hear rich sound details, male voice mellow and female voice sweet timbre, FA7 can be expressed in place. Although it is not that kind of poisonous sound, it shows a balanced human voice.

High frequency is more pleasing. FA7 did not pursue the high pitch too much, but held the high pitch and adopted a relatively safe tuning. This kind of treble will not appear particularly sharp and bright, but because of the full-motion iron unit, its sound transparency and resolution are still very good. Playing back zither music will not feel that the sound is cold and shiny, but the details can be well preserved, and the sound is rich in texture and more resistant to listening.

I have to say that FA7 is a relatively mature product for adjustment, and it is also a fruitful one in Feiao's continuous exploration. Although it is a full-moving iron unit, it better complements the lack of timbre of traditional moving iron, making the three sections more balanced, and the timbre has more texture and fineness, making the overall feeling better. The 4-unit Lou moving iron, DLP 3D printed male model and the pricing of 1999 yuan all make FA7 full of competitiveness. It is a middle-end earplug with high cost performance.

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