First of all, thanks to Aunt Zhang and Lasmex Lumson for their opportunities
When I learned of the excitement of being tested for qualifications, I began to search for this brand, because I was too strange to it. There is little information available on the Internet. The removal of hydrology from the portal site seems to be only known from its website: “founded in Bocholt, Germany in 2002 and entered China in 2014â€. However, searching for this headset on the Amazon in Germany does have a corresponding result and is delivered for Deya. And on its German official website, we can see a more extensive product line such as C40, HB60 bluetooth headset, and so on, so far, it can be considered as a "true card".
Lasmex C45 Faltbare On Ear Kopfhörer mit: Amazon.de: Elektronik €49.99 German Amazon 
Lumson Lasmex C45 Headphones Music Headphones Folding Portable Headphones... ¥299 Jingdong Headphones to hand, open the Aunt classic packaging, decisively flip around, search for production information. The words Designed and engineered in Germany, MADE IN CHINA (PRC) can be seen at the bottom of the box. It is really too much to look forward to German production. It seems that it cannot be opened with precise German craftsmanship.
It may be the cause of the testers. The box does not have a plastic or sealing tape. The headphone storage box can be seen directly from the top cover. The box is very conscience, and the hard shell fabric surface. The purple zipper and the metal nameplate complement each other. An instruction box outside the box, the inside of the box is a folded headphone body and a 2.5mm line plug 3.5mm100° corner plug with a three-button line-by-wire, the cable is soft, but this line also has the problem of easy winding.
The line control workmanship is also OK, the shell and the keys are plastic, but actually made a consistent sense of gloss with the headset, which is a lot of points. Unfortunately, the rubber seal on the top of the remote control line is slanted, but this should be an individual problem. Both terminals are gold-plated, the plugs are metal shells, excellent workmanship, I believe can withstand the daily repeated plug test, here have to criticize Sony's EX750AP, to find the terminal turned out to be slightly tilted, but fortunately did not affect the use of .
Next is the headphone body, the unit as a whole drawing process aluminum alloy, gloss is very good. The test was given to the "gray gun". In natural light, visible brown can be seen in the gray, and the drawing lines will make it reflect gray under the parallel light, giving the whole a very atmospheric feeling.
The headphone's tuning cotton is not thick, you can directly see the diaphragm.
And mate8 with aluminum alloy has a solemn business atmosphere, but without losing its elegance, inadvertent reflection is just right, catching the eye.
May be limited by cost, or for weight considerations, the remaining two head beams and folding rocker arm use engineering plastics, unlike the aluminum alloy unit housing, using a pearl gray intermediate color, reflective effect is generally, and the inner black Plastics have a low-cost feel, a low degree of assembly, and a large gap at the folding and length adjustment. The biggest drawback is that in order to pursue a minimum size, the entire headset is squeezed into a fixed position by a hard shell. At this time, the swing arm rubs against the inside of the head beam, and an obvious scratch can be seen when the hand is reached. In fact, this problem is well solved, only the hard shell package is made oblique below, so that the unit outside the eight characters will not be scraped to the past, I hope the manufacturers pay attention to the problem in the design.
The top of the head beam is wrapped with soft leather material, and the pressure ear style earmuffs are also artificial protein skin. The force of the head beam is not as large as the imagination. Therefore, the overall wearing feel is very good. At the same time, the noise reduction effect is negligible. . The companion who experienced the experience reflected that wearing ear clips for a long time, he probably did not experience Skullcandy Navigator 2.0 ear headphones, I will pull it to the longest head beam, still feel the head pinch, glasses feet are as if to put their ears Everything in two and a half.
MetaphysicsFirst of all explain yourself, the general music lovers, probably not fungus, you can hear the sound of the home ultrasonic drive Xiaoqiang machine, Alipay sound waves will have a tinnitus, there is a honey juice software can measure the highest frequency of hearing. It is said that adults generally reach 17000Hz?
Followed by the front-end selection, the headset is portable, and comes with a 3.5mm wire, so it is mainly designed for mobile devices, although the nominal 45Ω impedance, 100dB/mW sensitivity may not be very suitable The mobile phone and so on promote, but in order to get the most realistic listening experience, so use the Dafa A25, the sound effect is all off. It can provide 10/10mW @ 16Ω thrust, may be smaller than some mobile phones, but in actual use can still push c45 so-so. I have listened to the concept of listening to the full power of Dafa, all of the following subjective evaluations are relative to Z5C Bluetooth LDAC mode connection 1ABT, equalizer 12001, cb1 other customs.
First Comes to Utada Hikaru New Fantôme Album's "True Summer ã®ã‚Šã‚Šé›¨"
Song source mora, 96KHz/24Bit
The song was written by Utada to his mother. It was filled with a touch of thoughts and memories. The Lumson c45 had a good sense of hearing, and its infectious performance was excellent, but the tuning was biased towards the lower part of the disc. The vocals were far away. After 3 minutes and 35 seconds of iconic drumming, it was particularly tragic. At this time, the drums overtook the piano, giving people the impression of being mistaken for Extra Bass. The vocals lost their emotional expression. The pacemaker may be very satisfied with it. But as a jpop speaker, that's not a favorite voice!
Subsequent is the "sister's noise" of Nanchi infinitysynthesis 2 album
Song source mora, 96KHz/24Bit
The music of Nanjo Ainai was controversial, and it changed with its signature rhythm, prominent electronic sounds and treble vocals. Still an immersive sensation, where you can finally feel the treble part buried in front, but the volume is even more low, this time the closed metal shell becomes more and more obvious, and the bass-like dive like it creates a full “move time†Hit time feeling. ACG's works have many forms of expression. For those who listen to loud noises, the c45 is particularly comfortable, but the flow of such things as LiSA may not have been elected.
That being the case, had to move out of the pressure box - "The California" of the Eagles the Studio Albums 1972-1979 album
Songs from Netease Cloud Music SQ, 44.1KHz/16Bit
Here, the performance of the male voice finally reached a satisfactory balance. The vertical extension of the sound field is large, the position of the band is clearly separated, and the horizontal sound field is narrow. Basically, it can not be seen horizontally. Because this song prefers the feeling of the live version, this time it is not sure whether it is a studio recording or headphone tuning. The problem is that AKGK450, as a competing product, has similar sound field characteristics.
To this end, I re-listened to another title - "Tonight, I Feel Close To You" by Stefanie Sun / The Wooding Maid's The Moment album.
Songs from Netease Cloud Music, 320kbpsmp3
This song was recorded with a very clear separation between the left and right channel of the double wheat. It was easy to hear everyone's position, and the c45's feeling was indeed vague and somewhat regrettable.
in conclusionAdvantages: good materials for headphones and accessories, very good price at 299
Comfortable to wear
The sound is warm, the tuning tends to bass, and most of the pop music is consumed
insufficient:
Details of work to be studied
For some people may feel bass
Brand promotion needs hard work
Overall feeling:
If you are considering a portable headset with a price below 300, there is no unique preference for the brand, consider the c45, its appearance, materials will not let you down!