Music Ripples Heart, Feiao Ring Iron Headset F9 PRO Evaluation
, at the end of 2017, Feiao released two new earplugs, one of which is FH1, which has previously evaluated "beautiful sound and beautiful price" on this site, and the other is F9 PRO, which is today's main character "beauty of ripples.
, like FH1, F9 PRO also uses the currently popular ring-iron mixing unit, of which the moving iron part is the famous 30017 composite double-acting iron unit of knowles, while the moving ring part is PEK polymer nano-composite diaphragm, CNC-formed metal shell and oxygen-free copper silver-plated balanced plug wire, etc. The hardware is "full of sincerity".
F9 PRO also uses physical and acoustic double-division technology to solve the problem of audio-frequency superposition and connection of the ring-iron hybrid unit, and has obtained the "Hi-Res Audio" certification. The paper strength is very strong. How about its specific "strength"? Please also see this evaluation.
black packaging seems to have become the tradition of Feiao headphones, and F9 PRO is no exception. The black background is printed with an enlarged photo of the product, plus the logo and logo at the four corners, making the overall packaging very "professional".
accessories: 3 pairs of pure black balanced earplug sets, 3 pairs of red and black bass earplug sets, 3 pairs of transparent red vocal earplug sets, 3 pairs of memory sponge sets, 3.5mm earphone line (including microphone), 2.5mm balanced plug earphone line, diving cloth storage bag, and feiao earphone box.
F9 PRO is still a replaceable design, using standard MMCX interface, equipped with 2.5mm balanced plug wire and 3.5mm standard plug wire. F9 PRO has also made special treatment on the MMCX interface. The thread on the surface is convenient for users to unplug and plug, and the outlet angle is adjusted (compared with F9) to facilitate compatibility with third-party upgrade wires.
has a call microphone and wire control on the 3.5mm standard plug wire. In addition to the call function, it can also control smart devices by wire, which is suitable for matching with front ends such as smart phones and tablets. The 2.5mm balanced plug wire is made of oxygen-free copper silver plating material, which has good balance and lower signal loss, and is suitable for matching with music player with 2.5mm balanced output.
appearance and wearing
F9 PRO continues the design language of F9, inspired by water ripples on the tranquil lake. Officials claim to use bionic design to design the shape into ripples-"like music rippling in your heart."
F9 PRO is a very beautiful earphone, because it is more beautiful than the rendering. China does not lack good earphone appearance design, but the manufacturing level of many manufacturers is not up to standard, and there will be a big gap between the real object and the rendering. In addition to the bonus points of design, the beauty of F9 PRO is also the material and manufacturing process of the shell. The fully CNC cut cavity has also been manually selected and polished, and then processed by multiple processes such as sandblasting and anodizing. It is not only delicate in appearance, but also outstanding in hand feeling. (The processing and processing of these shells are close to the level of first-line mobile phone manufacturers)
In addition, the ripple shape outside the cavity is not only the embellishment and decoration on the appearance, but also plays a role in strengthening the strength of the cavity in function. At the same time, although this design does not change the inherent rigidity of the metal itself, it also helps to eliminate the sound resonance standing wave and make the sound more pure.
F9 PRO uses a way of wearing around the ears, which can better reduce the stethoscope effect and is more ergonomic. The F9 PRO actually feels very comfortable to wear, but because the long and narrow sound guide tube will cause the author to leak the sound of people with too large ear holes, thus directly leading to the low frequency loss of F9 PRO. Therefore, it is recommended that users reasonably match the silicone sleeve or memory sponge sleeve attached by Feiao to enhance their wearing experience.
Acoustic Structure and Subjective Hearing
ring iron mixing unit earplugs are no longer a new thing. Earplug manufacturers realize more complete sound through frequency division technology through the advantages of moving iron unit and moving coil unit in sound. Nowadays, there are a large number of ring iron mixing unit earphones on the market, and their performance level is also uneven.
F9 PRO adopts a three-hybrid unit design consisting of a moving coil unit and two moving iron units. The division part also uses physical and acoustic double division. The moving iron unit is TWFK-30017-000 of the composite moving iron unit from Lou's (knowles) in the United States. This unit is also the same model of the famous ring iron earplug AKG K3003. It can provide high-resolution sound, so that the levels of medium and high frequency and extremely high frequency are more distinct, and various sound details are truly reproduced, making the overall sound fuller and richer.
adopts a 9.2mm PEK polymer nano-diaphragm. The PEK polymer nano-composite diaphragm is characterized by strong toughness, fast reaction speed and light weight, which can better avoid the division vibration of the diaphragm, making the intermediate frequency more accurate, round, lower frequency dive better, and more elastic.
first listening to F9 PRO, you can clearly feel that its style is neutral and quality earplugs. It strives to present the details of sound to every listener in a real way, and the processing of sound details is very delicate.
compared with some other ring iron mixed earplugs, the sound of F9 PRO is transparent and full of "air feeling", which is mainly due to two aspects. one is that the high-frequency part has extremely high resolution and can restore weak detail sound. Second, the extension of extremely high frequency is outstanding and the details are rich, making the overall sound fuller.
F9 PRO has a high intermediate frequency density, which is also one of the advantages of Lou's 30017 unit. It is very interesting to listen to human voices and has a lot of details, but it is not suitable for singers with poor singing skills.
low frequency, F9 PRO has a strong sense of hierarchy, deep dive, moderate sense of quantity, good transient, and fast rewinding. It is very suitable for the current partial sound and rock elements, and is more "explosive" pan-popular music style.
The longitudinal sound field scale of F9 PRO is larger than that of the transverse sound field, that is to say, the front and back are better than the left and right. This arrangement has a certain relationship with the placement of cavities and units. The sense of positioning and knot in the sound field is quite good. The tracks compiled by small bands can make people clearly feel the position and distance relationship between different musicians and singers.
F9 PRO itself is not difficult to push, and mobile phones can also be well driven. If users are matched with players that take the listening route, F9 PRO will add a lot of color. However, under the high-thrust player, there will be better quality performance, and the dynamic and sound fields can be greatly improved. What's more, it also comes with a 2.5mm plug balance line, so the author matched Feiao's own X7markII for a deeper listening test.
F9 PRO is matched with X7markII and replaced with a 2.5mm balance line, the sound resolution will be further improved. This is mainly because the left and right channels have higher separation, the left and right sound fields are also more open by the way, and the low-frequency sense of quantity is also improved to a certain extent. The moving coil diaphragm should be fully driven, and the "iron smell" of the whole sound is no longer so strong, in exchange for more balanced, or a more complete sound experience.
simply, F9 PRO is an earplug with high resolution, high intermediate frequency density and typical high-quality moving iron unit when using 3.5mm wire to match the front end of mobile phones. However, after changing the 2.5mm balance line and matching it with high-quality players such as X7markII, the sound of F9 PRO is more balanced, atmospheric and transparent, which is more in line with the charm of Hi-Fi. It is an earplug that gives full.
F9 PRO left a deep impression on the author. Among them, there are two particularly profound points. One is the excellent appearance, which represents Feiao's hardware strength in design, material application and processing. The other is the tuning that conforms to the charm of Hi-Fi, which represents Feiao's acoustic strength. As a "Hi-Fi earphone enthusiast", it is hard to imagine that the price of this earplug with excellent workmanship, outstanding appearance and "sophisticated" tuning is only 998 yuan.
PS: Recently, the headset circle has become popular "listen to a ring within 100,000". It seems that the cost of bragging has been zero again!
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