The coil iron earphone is the abbreviation of "dynamic coil unit+dynamic iron unit" earphone, which is the structure mode of "one dynamic coil unit+one dynamic iron (or multiple dynamic iron units)" in which these two units are placed in the same earplug body. Moving iron unit and moving coil unit are two electroacoustic transducers with different structures. In the dynamic coil unit, the voice coil in the magnetic field is connected to the diaphragm, and the current signal drives the diaphragm to vibrate and sound together through the voice coil. Compared with moving iron unit, the advantages of moving coil unit are relatively easy to manufacture, good linearity, small distortion and wide frequency response; The disadvantages are relatively low efficiency, heavy vibration part and poor high-frequency transient. The moving iron unit earphone uses electromagnet to generate alternating magnetic field. The vibration part is an iron sheet connected to the diaphragm structure, which drives the diaphragm to vibrate together. Compared with the moving coil unit, the moving iron unit has the advantages of long service life, high efficiency and good high-frequency transient; The disadvantages are large distortion and narrow frequency response range. A headset has both a dynamic coil unit and a moving iron unit, which is called a "coil iron headset".   

Whether earphones are excellent or not is a relatively subjective judgment. Everyone has different auditory feelings about a headset, so we need to put ourselves in a relatively objective state to judge the hearing of the headset.

1MORE multi unit ring iron earphones are packaged in a gift box. The black book box is a waist seal made of fine cloth special paper. The metal sheet in the middle is brushed and engraved with the word 1MORE DESIGN. The whole outer package looks stable without losing luxury.     The front of the waist seal has the word 1MORE in the middle.    

On the back of the waist seal are the parameters and relevant information of the 1MORE multi unit coil iron earphone.    

gold The box clamp made of material adopts wire drawing treatment. It is engraved with 1MORE DESIGN.    

1MORE's design has a high overall consistency from product to packaging, and has twice won the German iF Product Design Award and the 2015 Red Dot Award. It is worthy of the name for the 1MORE multi unit iron earphone. The stereo packaging divides the headset and accessories into two layers. The hard sponge is used for forming, and the extraction nose made of cloth strips is also used in large quantities.    

The upper layer is earphone and leather storage box. Hard sponge packaging is adopted, and the storage box, the streamline trunking of the earphone and the bottom earphone trunking are ingeniously distributed on this sponge. The small ears on both sides are convenient to take out from the package.    

The lower layer of the package contains some accessories and instructions. 1MORE coil iron earphones are equipped with a special adapter for aircraft, as well as a headphone clip and three pairs of earplugs. The headphone clip on the general headphone has almost never appeared. Another function of this clip is to effectively prevent stethoscope effect.    

Family photo of 1MORE multi unit hoop iron earphones. Instruction manual, adapter, clip, earplug, storage box. I don't need to say what each part does. The little bear is not included.    

Because everyone's ear canal and wearing habits are different, the original earplug sleeves may not be completely applicable, and different sizes of earplug sleeves are included in the package. It is recommended that you try on the earplug sleeves one by one when you get the earphones, and select the most suitable earplug sleeves. The appropriate earplugs will be more comfortable when wearing.    

The specification parameters of this earphone are 32 Ω, but it is recommended that you choose a good sound source when auditioning. It is recommended to use the Xiaomi NOTE mobile phone with HIEF sound effect or a mobile phone with higher configuration to better reflect the sound quality of this headset. Because of some sound source or the sound effect of the music itself, the performance of the headset will also be affected.        

1MORE multi unit ring iron earphone adopts the earphone body made of precision aluminum alloy, and its surface uses multiple processes: fine sand blasting, high gloss drilling, wire drawing, CD carving, etc., which is simple and elegant; Luxurious and elegant champagne gold and pure white match colors, more fashionable taste. Earphones follow the precise design of ergonomics; The headphone cavity and the metal tailpipe have two different bevel designs, so that they can fit the ear canal naturally when wearing, and are comfortable to wear, not easy to slip off, and enjoy music more freely.    

The 3.5mm plug adopts fine turning process and surface thread treatment, which makes it feel better in use.    

The surface of the headphone cable is made of braided wire and TPE, making it more flexible and difficult to wind. When wearing, the tail handle of the earphone keeps a certain space from the ear, making the earphone cable hard to contact the human body, effectively helping to reduce the "stethoscope effect", reduce the friction sound, and enable you to enjoy clearer music. The core wire inside the headset is wrapped with Kevlar fiber, which is tensile and durable. The white braided wire is easy to get dirty. As long as you use a wet paper towel to gently wipe the surface of the headset and the dirt on the headset wire, and then use a dry paper towel to dry the wet part, you can keep it clean.    

In terms of remote control, the 1MORE multi unit iron earphone supports both Android and Apple systems. The functions of the three buttons are shown in the figure below. The design of a bump on both ends of the middle button enables you to identify the button by touching the bump at night, so as not to press it by mistake. These detailed designs deserve praise. The other side of the wire control is the microphone.      

This is the hard storage box for 1MORE multi unit iron earphones. The earphones are not only noble here, but also not afraid of the entanglement of the earphone cable when placed in the bag.    

With regard to the distinction between the left and right channels of the 1MORE ring iron earphone, except that there are "L" and "R" marks on the two places of the earphone, a ring bulge is designed on the tail pipe of the right earplug of the earphone, which can be identified by touch, while the tail pipe of the left earphone has no ring bulge. Of course, the two earplugs can also be distinguished from the position controlled by wire.    

The ergonomic design of the 1MORE coil iron earphone, in terms of appearance and details, will undoubtedly be appreciated at the first sight. However, when evaluating a headset, its appearance is only one-sided. The comfort and sound quality of earphones are the important parameters to measure the quality of earphones. The 1MORE hoop iron earphones were also tuned by Italian recording engineer Luca Bignaldi, who won four Grammy Recording Awards. How about its sound quality?    

First, select the appropriate earplug before trying out the earphone. The standard earplugs of 1MORE coil iron earphones can basically meet the needs of most people. Choosing suitable earplugs will not only affect the matching, but also the performance of sound quality. As a low distortion Hi Fi earphone, 1MORE coil iron earphone will fully show the poor recording effect and decoding loss, so sometimes there will be bass turbidity or overweight, and high pitch sound breaking in the sense of hearing. It is recommended to select music files with a file size of more than 8M for audition, and try to select music in lossless format. You can also download a special software for the headset on the official website. Because the sound quality output of different mobile phones is also different, Xiaobian uses Xiaomi NOTE mobile phones. Because everyone's sense of hearing is different, it has a lot to do with the upstream equipment tested. Therefore, the evaluation of sound quality only represents the personal feelings of the editor.     

The biggest defect of earphones is stethoscope effect. The stethoscope effect is because the headphone cable or headphone unit is subject to external collision or air friction, and the vibration generated is directly transmitted to the ear canal through the headphone cable, producing unpleasant friction sound. This also happens to 1MORE coil iron earphones. Although the TPE material is used on the wire material, 1MORE greatly reduces the stethoscope effect. But I still feel it when I exercise. However, the cable clip delivered by 1MORE plays a very important role at this time. As long as the headphone cable is fixed without friction with the body or the headphone cable is bypassed from behind the ear, it can be significantly improved when worn behind the neck.      

After 24 hours of warming up, I listened to Cai Qin's "Ferry", Yan Xuemin's "Drum Poem" and "High Mountains and Flowing Water". It may be that the earphones have not been turned on yet. The 1MORE iron earphone earphones actually feel a little inadequate in terms of bass performance. The drum sound in Drum Poetry should have been powerful, but it sounds that the strength is not enough. In terms of medium and high frequency performance, the zither is as clear as water. The melodious voice of Cai Qin in Ferry is like walking into your heart. I focused on finding Hotel California, which has a very wide sound field. In this song, the guitar, bass and the main song are hoarse, and the clarity of the earphones is relatively clear. The cheers and whistles below the stage are more real. The two styles are completely different for good voice headphones with the same tuner and the same price. 1MORE coil iron earphone shows the essence of music more realistically. However, it is precisely because of its true performance that there will be rustling current sound on some mobile phones or playing some poor quality music. In terms of voice calls, I was very satisfied with the restoration of the 1MORE coil iron headset. On the whole, the sound quality of the 1MORE coil iron earphones is quite good, especially during the audition, I am most satisfied with the natural performance of the range.    

Summary: 1MORE hoop iron earphones are superior to other hoop iron earphones. The low price of 299 yuan has brought a lot of criticism to this earphone. Is the sound quality high as long as the price of 599 is marked on it? The price of the millet ring iron earphone processed by 1MORE is only 99 yuan. What kind of dispute will it be? In fact, most of the criticisms about the 1MORE iron earphones are about the sound quality. 1MORE, in order to restore more authentic sound, did not render it as good sound when tuning, making it more enjoyable to listen to, but tried to represent the real sound. Because of this, the same sound source may appear at some time, resulting in different listening senses of different earphones. In fact, there is no comparability. Each earphone has its own characteristics. Just like everyone, different people have different characteristics and preferences. For the 1MORE coil iron earphone, the significance it brings to us is not only the low-cost coil iron, but also the restoration of real sound.