I have to say that people's living environment is changing rapidly. In addition to the difficulty in ensuring air quality, environmental noise is also a major pain point for people; So a new type of earphone "active noise reduction" earphone was born. The principle is that the noise reduction system generates the reverse sound wave equal to the external noise to neutralize the noise, so as to achieve the effect of noise reduction.

In 2014, the earphone tycoon Audio Technica (Iron Triangle) launched MSR7. In China, it likes to call it "strange wife" to describe the protruding female voice; The price of MSR7 has remained stable since its launch; It can be seen that this is a very valuable headset, but when will the second generation new product of "strange wife" be released? Obviously, the voice of netizens is effective. At the CES exhibition at the beginning of the year, the Iron Triangle launched the ATH-MSR7NC active noise reduction headset, which is based on the widely acclaimed ATH-MSR7 headset and adds 360 degree all-round active noise reduction technology to eliminate various external noises that affect the listening effect. The first launch is still in the US market, with a price of 299.95 dollars (about 1955 yuan).

Although ATH-MSR7NC has been released for a long time, it can be seen that domestic users can only purchase from abroad by means of overseas shopping. This undoubtedly makes many domestic fans a little depressed and anxious. This wait is 9 months. Many netizens have come from afar. Now this vexation is about to be solved. Because the ATH-MSR7NC national bank version has officially arrived! Yes, the one I got is the Bank of China version ATH-MSR7NC. Today, let's analyze the features of this product.

1、 Outer packaging

The packaging style of the Iron Triangle is relatively uniform, not different from the previous generation of MSR7d. The whole packaging box is densely printed with parameter descriptions in various words. The slight difference is that the front product picture and product name have changed. The full name of the noise reduction version of MSR7 is "ATH-MSR7NC". Other styles have not changed much, and the internal layout has hardly changed.

2、 Product details

First, let's look at the accessories. This time, there are only two sets of headphone cables, one is ordinary, and the other is equipped with a microphone connector; It is not ruled out that from time to time, the accessories that are not compatible with MSR7 have an additional charging data cable with Android interface, which is mainly used to charge the built-in active noise reduction module; Of course, not charging will not affect the use, which will be highlighted later.

At first glance, the appearance of MSR7NC and MSR7 is really not very different, and the design elements are very similar; However, there are still some differences after careful observation and comparison.

Compared with the previous generation of MSR7, the noise reduction model is more low-key and simple. The black model I experienced previously is decorated with blue in different parts of the ear. This NC version uses the silver simple decoration, which is more low-key. The left and right signs are also simplified. The previous generation is the full name of the left and right causes, and only "R" and "L" are reserved on the MSR7NC version Simple identification method of.

The new noise reduction version uses softer leather head beams and ear pads. The retractable and adjustable internal frame is still dynamic, and the comfort design of the iron triangle is wrong. It has always been the pursuit of the Iron Triangle to provide the best comfort for each user as much as possible. The earphone shell is made of aluminum magnesium alloy, which not only has a full texture, but also can suppress redundant noise and vibration, so as to provide a more flexible medium and low frequency sound.

3、 Product performance

ATH-MSR7NC inherits all the characteristics of ATH-MSR7, and its appearance continues the design of MSR7. In order to improve the wearing comfort, it uses soft leather head beams and ear pads with both texture and feel, and cooperates with the retractable internal frame to provide the best comfort for each user as far as possible. Considering the use when going out, the foldable design is added, which is convenient to put into the bag. However, the foldable size is limited, and users still need to select a larger bag to store products;

It is equipped with a 45mm large-diameter dynamic drive unit. The unit uses a short voice coil that is officially declared to be matched by the "True Motion Hi Res Audio Driver" magnetic field strength, making the frequency response range up to 5Hz-40kHz, easily supporting the "Hi Res Audio" high-resolution audio, with a sensitivity of 100dB and an impedance of 35 Ω. Since the active noise reduction module is added, the headset is equipped with a lithium battery, and a charging interface and an active noise reduction switch are designed. Fully charged, the official announced that the battery life can be up to 30 hours when noise reduction is turned on. 25 hours of actual measurement is guaranteed.

4、 Audition experience

I have to admit that the active noise reduction earphones feel a bit bad with the popularity; For music enthusiasts, if they lose too much music details to achieve noise reduction, many people will not accept it. What we really enjoy are those products that are best at eliminating external noise without sacrificing internal music. In addition to the isolation effect and sound quality, the sound quality must be very good.

When to actively reduce noise first; The principle of active noise reduction earphones is to use electronic products with built-in batteries to block external noise. The blocking method is to use microphones to measure environmental noise and generate "anti noise" sound waves to offset them. The most obvious feeling is that when you turn on this kind of earphone, you will immediately hear a slight hiss. After knowing its principle, we have to say that noise reduction earphones are picky about the environment and must play their role properly, because the deviation of noise reduction signals will affect the music sound waves you want to listen to. Today, I'd like to talk about my quiet music experience.

Sound: The new generation of the Iron Triangle MSR7NC Active Noise Reduction Headset still has many traces of the previous generation of MSR7. Sound is also the product of the same foundation (45mm sound unit); One of the features of the MSR7NC is that it can listen to music without batteries. It is equivalent to an MSR7 headset when there is no power. To put it simply, the voice features are: "The middle and high frequency performance is excellent, the low frequency may not be very prominent, the sound field is also good, and the voice part is relatively front; the sweet female voice expression is very perfect." How does the so-called female poison come from? Today, I will not talk about the listening sense of MSR7. There are a lot on the Internet. Talk about the MSR7NC effect of the MSR7 "Start up" activity;

When noise reduction is on:

Low frequency: MSR7's performance in the low frequency part is not prominent, and this pair of earphones has a lower tuning; However, the resolution and resolution are pretty good. Like MSR7, it is not outstanding. The NC version has not reduced the low frequency, but it has definitely not improved much. However, the music transmitted to the ear is clearer without noise interference, and the purity will be greatly improved.

Medium and high frequency: good separation between voice and music; It not only highlights the voice, but also does not destroy the integrity of the whole song; Baritone fullness; The voice is close to the ear, the outline is clear, delicate and beautiful; The most obvious place after noise reduction is that the background noise is greatly reduced. Enjoy listening to more details.

After active noise reduction is enabled, the performance of MSR7NC is relatively complete and retains the characteristics of the previous generation of MSR7. The biggest feature of MSR7NC after noise reduction is that the background noise is greatly reduced; It is obvious that the audible sound details are more pure and rich. As a portable headset, MSR7 has been widely praised by market users after all. On this basis, the active noise reduction module is added to achieve the excellent effect of sound insulation+noise reduction, which is a great guarantee for sound quality in noisy environment! In addition, his sound quality is also quite excellent. The upgrade of MSR7NC is worth a try.

5、 Practical scenarios

Everyone knows that environmental noise is harmful to people's ears, and many earphones without active noise reduction are easily affected by external noise in noisy environments, thus affecting users' enjoyment of music. Therefore, active noise reduction earphones have attracted much attention.

The author also selects several characteristic scenes to feel the effect of active noise reduction; I like to sit at the back most by bus, the main reason is that I really don't want to give up my seat halfway home from work; So the most effective way is to sit at the back. It's not cool after a hundred attempts! Because of this, we have to endure the roar of the large engine behind the bus. Wearing regular earphones is just a means of neutralizing noise, not music appreciation at all. Almost every day. Take MSR7NC with you this time. It was found that the active noise reduction was enabled, and the whole horizon was quiet, and the roar of the rear of the car was almost inaudible. The mood suddenly increases greatly!

The other is to make phone calls. In the past, it was quite good to make phone calls with a headset under normal circumstances. When in a noisy environment, such as a train fortress, there is almost non-stop whistle sound, and it is impossible to make phone calls. The MSR7NC is good for active noise reduction earphones at this time. Even if you whistle in front of you, you will not be unable to talk normally.

When there is no music playing, I also made a comparison between turning off active noise reduction and turning on active noise reduction. If the user is not sleeping well, try MSR7NC at night to enable the active noise reduction function to enhance sleep. Of course, the premise is that you can accept wearing headphones to sleep all night. The ambient noise is a kind of sound wave. The principle of active noise reduction of earphones is to offset the ambient noise by sending a waveform opposite to the ambient noise itself (positive and negative offset is 0), so as to achieve the purpose of active noise reduction.

Regarding the collet, have you seen many netizens ask MSR7NC collet? The "collet" is simply that the elasticity of the head beam is too large, and everyone's head shape is different, so the user who nods a little bit will feel tight, and the user who nods a little bit will feel no collet; So this is relative. In fact, after knowing the cause of the collet, you can manually handle the elastic part in a physical way (by hand). So I don't think this is a problem to worry about. The MSR7NC bare machine weighs 305g, only 15g more than the previous generation, and the wearing comfort is relatively close.

Finally, answer a few simple questions:

Q: Can I audition without electricity?

Answer: Yes, but there is no active noise reduction.

Q: Can active noise reduction earphones only be used for sound insulation instead of listening to music?

Answer: Yes, as long as the headset is powered on, the noise reduction switch can be turned on to reduce the noise.

Q: Does active noise reduction affect the sound quality?

Answer: Yes, it filters out the background noise and improves the purity. However, with the unstable and noisy situation, there will be some subtle differences. It is mainly caused by the failure of active noise reduction to capture unstable noise.

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