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Today's evaluation of the design style of the second generation of the Shantou, we talked about in the Momentum On-ear evaluation, and the standard version of the big girl may be called Momentum Over-ear. The inspiration for the two-track metal head frame may come from HD25 Many of the headsets of that era, while the headstock fixed headphones two single ways and tracks, should be purely from the HD25, while the stainless steel wire drawing process shows the modern craft. This retro and simple style is currently More and more popular, we also see more and more similar products, including headset products. 
The second part of Momentum's ear pad is made of dermal material [officially called leather]. The filling material in the ear pad is very soft and has a certain memory effect. The surface of the leather is soft and delicate. The second-generation earphone Momentum is the same as the first generation. The size of the all-inclusive ear is achieved, and the thicker ear pad is left to the deeper space of the front cavity of the earphone. The distance between the ear and the ear is relatively larger. The comfort of the second generation of the big girl is also good, soft. The ear pads and proper pressure also provide better sound insulation. The rear side cavity part of the earphones uses a metal lacquered surface process, which is different from the plastic bright surface of Momentum On-ear. Two appearances The style is different, but it seems that On-ear's craft is obviously more beautiful, relatively suitable for younger styles. Momentum is more restrained, and there is no such contrasting color as On-ear. 
Momentum's second-generation official indicator has a very low impedance of 18 ohms, and a sensitivity of 113 dB, very high sensitivity. At the same time, Sennheiser's official website always marks the harmonic distortion at 1 kHz 1Vrms, and Momentum II is 0.5%. The distortion of the HD800 is 0.02%.
In the main observation review, we use the iPhone 6 Plus and vivo X5Max mobile phones as the main reference according to the second generation of Momentum. The FIIO X1 and X5K players are used as Walkman reference. The integrated sound card output of Macbook Pro is also a simple reference. Of course, The more powerful Monitor 06 MX, etc. is also used as a simple auxiliary. Compared to the headphones, there are not many objects directly compared with AB. The previously evaluated iron triangle MSR-7 has been returned, but the impression is compared. The reference comparison also includes the iron triangle. M50x and Edifier H840. 
High-frequency performance: Momentum's second-generation high-frequency sound field is relatively wide, sound density and resolution are not long-term, it should be weaker than the iron triangle's MSR-7, but this headset seems to be intentionally doing a more relaxed and open style, at high frequencies. The same is true for the above. The benefits of this design are very obvious. On the one hand, when dealing with poor sound sources [for example, not particularly good MP3, of course, it can't be too bad.] The high frequency will never be sharp, and the sound will be slack. This is very useful in popular music and online music applications. On the contrary, the Iron Triangle M50x is very concerned about the quality of the sound source, low-quality online concerts are very difficult to listen to on this headset.
Although the high-frequency details and density of the second generation of Momentum can't be compared with the same price [weak MSR7], it is not the top grade compared with the 2000 yuan HiFi earphone. However, its quality is not bad, easy to drive. Let its high frequency and high frequency part have good dynamics, although the sound is obviously not solid enough, some are erratic, but it is very suitable for pop music, vocal performance. This style is somewhat similar to HD598, but because it is more than HD598 It’s so much better, so the overall dynamics will be better and not so loose. On the whole, Momentum’s second-generation high-frequency adaptability is very good, and there is a clear sense of decoration. This kind of decoration is not to make it exquisite. Fine, but let it relax, soft. Like a more solid style may not like its sound, but high resolution really needs a good source of audio, including audio file support. Of course, Momentum second generation of high-frequency overall quality still has to Better than the rambler H840, but also slightly better than the iron triangle M50x.
Mid-range performance: When you first listen to the second generation of Momentum, you will feel that its voice is a bit loose, the image is not true, and the sound is not correct. Compared with the H840, the sound of the H840 will be clean and solid. But the Momentum II The midrange frequency of the earphones is actually not thin. Its vocal thickness is actually better than that of the H840, and the details are more abundant. But like the high frequency, its sound has obvious landscaping traces, and the vocals will be softer and sounder. The transient will obviously become slower. Its role is mentioned earlier. The adaptability to the sound source will be very good. It is used to appreciate the human voice. If you listen to the high-end HiFi headphones, you may feel that this style sound is somewhat erratic and somewhat biased. Soft. But with portable audio sources such as mobile phones, the vocal performance of popular music, Momentum II is obviously better than the iron triangle M50x, and this more relaxed style is completely different from the MSR-7 rich style. The dynamics and details of MSR-7 will be different. I feel that Momentum is higher than Momentum, but the taste of Momentum is more resistant. This style is too heavy in the expression of instrumental music and classical music. Of course, there will be no bad listening, and the sound still has a good analysis. Force, especially
Low-frequency performance: In the Momentum On-ear evaluation, we talked about its special low-frequency modification. The loose big girl definitely won't think of the crowded low frequency like On-ear. But its low-frequency decoration is still very special, the headphones are in the low frequency. Part of the reinforcement is also in the deep frequency range of dive. So, for general music, its mid-low frequency part is still very neutral, and does not enhance the sense of volume. But only in the low frequency of deep dive, such as bass cello Very low frequency bands such as drums, electric bass, etc., the low-frequency sense will increase sharply, very awkward. This will be very strange when expressing classical music, it feels that the instruments seem to have an electro-acoustic effect processing.
However, such a tuning is very suitable for today's American R&B, dance style music. In the low-frequency part of the dive, the low-frequency part of the second generation is much more relaxed than On-ear. Listen to the deep Bass and drums in the dance music. Very volumey.
On the whole, in addition to the above mentioned enhancements, the low frequency of Momentum's second generation still continues the style of the intermediate frequency. The connection between the mid-low frequency and the intermediate frequency is natural and balanced. The sound is relatively slack, but the dynamics of the low-frequency part are slightly weaker. But the overall performance is still better than the iron triangle M50x, and whether the slack mid-low frequency listening is better than MSR-7? It is not completely sure [not clear].
to sum up
Sennheiser Momentum second-generation headphones [Over-ear] has a significant difference in sound performance compared to our previously-measured earmuffs, Momentum On-ear. Although it is a closed all-inclusive ear size The headphones, but the sound performance is more relaxed, soft. Very easy to drive design makes it with iPhone, vivo X5Max, FIIO X1, X5 level players have a good performance. But not suitable for the amp is too strong.
Momentum's second-generation sound style has obvious decorative traces. The intermediate frequency and high frequency are soft and soft. For the pursuit of HiFi, this kind of sound is too loose, but with the portable sound source to listen to online music, its performance is There is obviously better adaptability. In the past, we evaluated the good iron triangle M50x, although the balanced performance and solid image with high level music and sound source is better than Momentum II, but I believe that I will use the mobile phone to listen to the popular music Momentum II. Will be significantly ahead of the M50x.
Not long ago, we evaluated the iron triangle MSR-7. It is certain that the MSR-7 is a headphone that pursues HiFi more than Momentum. Its high-frequency resolution, medium-frequency thickness and dynamics are superior to Momentum II. However, in the overall sense of hearing, and the matching of mobile phones, as well as low-frequency and low-frequency performance, we can not determine who is better in the performance of the two. In general, the sound of Momentum second-generation headphones is excellent when used with mobile phones and walkmans. It is a traditional closed-end earphone in the thousand-yuan class, but it may not have obvious advantages compared with the emerging earphones of 1500-2000 yuan.
Sennheiser Momentum 2.0 [Big Head] is Momentum's second generation product. It is different from our previous Momentum On-ear. Momentum's two generations are all-inclusive ear size [just no Over-ear suffix) Naming]. In January 2013, CES, Sennheiser first released the new Momentum brand. The main difference between the second generation and the first generation is the appearance of the foldable headstock [as shown]. Easy to store and carry, and there is no difference in sound, there is no test prototype, so here is temporarily unable to give an answer. This headset is not low after the release, the price is 2299 yuan, the actual transaction price is about 1700 yuan. The Momentum series is a new series of Sennheiser's line of "professional audio" in the headphone product line. In the past three years, Momentum's two headwear [Over-ear, On-ear, In-ear] and an earphone product are still successful. Its retro and simple design meets the trend of aesthetic design of mobile device hardware and software industry in recent years. In the earphones with positioning and mobile devices, it has come out of its own style. It is a more important brand besides Beats [although the sales gap is still very large]. The top of the headstock of Momentum On-ear used Alcantara suede material, while the head section of Momentum used the texture of very good leather [appears to be leather]. Due to the added folding function, it is in the head The frame and the folded joint need to be fixed, and it has become a good place for Momentum decoration. The four shiny hexagonal non-standard screws not only fix the folding joint, but also have a good decorative effect [a very dazzling photo in the photo]. The second generation of Momentum provides the design of single-sided pluggable and changeable cable. The interface is a special 2.5mm four-segment socket. The rotary lock structure on the socket ensures the stability of the connection. Momentum is Samsung for Android. LG, SONY, HTC, etc. debugged the compatibility of the line control. Of course, iOS is also supported by wire materials. However, the wire control of the 2nd generation big hoe seems to be no longer a strong metal texture, even a stainless steel case. [eg MX985]. It is a relatively common black plastic remote control, it seems that the grade is much lower than before. The overall impression: Momentum second generation [hereinafter according to the official writing, abbreviated as M2] compared to On-ear's little girl, the overall sound is still very different, although it is still closed design, but the sound is much looser, It's not as crowded as Momentum On-ear. And it's worth mentioning that this is not just that Momentum's second-generation headphones are looser than On-ear, but as closed-type headphones. The sound is very slack. The very easy-to-drive design also makes it a good performance when paired with a variety of portable sound sources. On the contrary, when the player with too much driving force is used, the medium and high frequency will become cautious [eg Hugo et al.
Seoul Sennheiser Sennheiser Momentum 2.0 [Grand bread] Headset