Audio quality evaluation of Astrotec Lyra 6
Audio quality evaluation of Astrotec Lyra 6

In the current popularity of earphones, the flat plug looks like sunset due to its design and structure. Under such circumstances, some manufacturers still launched the flagship flat plug of 1000 yuan, which is a good thing for flat plug, whether it is the return of technology or the new stir fry of cold rice.


The package design and appearance design of Astrotec Lyra 6 have been introduced in detail in the previous picture appreciation. This article is no longer cumbersome and can be read if you are interested《 Sports Hi Fi Astrotec Lyra 6 》。 Previously, Astrotec had introduced Lyra flat plug, while Lyra 6 can be regarded as an ear hook version, which is different in sound tuning.


Astrotec Lyra 6 uses the 15.2mm high-performance moving coil unit, embedded microporous filter screen module and miniature sound guide tube independently developed by Astrotec. The ear hook and cavity are made of metal materials, which is very helpful in overall workmanship and product improvement. Compared with the ear hook added by Lyra, the Astrotec Lyra 6 has a better stabilizing effect and is more comfortable to wear. However, due to the design of the flat head plug, the Astrotec Lyra 6 still has an obvious sense of fatigue when worn for a long time. In addition, the larger chamber of Astrotec Lyra 6 has basically said goodbye to female users.


Astrotec Lyra 6 or labyrinth filter made by die-casting high-density steel balls at the rear of Astrotec Lyra cavity. The function of this filter is to present numerous irregular labyrinth shaped micro pores inside, which can effectively filter noise and suppress the refraction of sound waves in the cavity. Of course, its use is very metaphysical, but its manifestation of dense irregular visual effects, it is estimated that many people with dense phobia are worried. (laughing)


Objective test:



In terms of objective test, we used CRY6151 electroacoustic device tester. For in ear and flat head plugs, we used IEC318 and IEC711 ear simulators respectively to obtain more accurate data. CRY6151 electroacoustic device tester is the third generation electroacoustic testing system launched by Jigao Electroacoustic, which can test Frequency response curve Sensitivity, impedance, signal to noise ratio, resonance frequency and other relevant parameters. According to the earphone type and actual use, we will test it separately Frequency response curve and impedance or corresponding test items shall be explained and possibly commented by senior earphone engineers. It should be noted that the test results may differ from the data published by the manufacturer due to the differences in instruments, test methods and individuals. (To put it more generally, this can be regarded as the score of sound quality.)


Engineer Penny's opinion:

The sensitivity of Astrotec Lyra 6 is relatively high. The test impedance is about 38 Ohms, which is not too high. Relatively speaking, it can be considered as a type of low resistance and high sensitivity. It has low requirements for thrust, and belongs to the type of easy thrust. From the test frequency response curve, it can be seen that the Astrotec Lyra 6 is relatively straight in the middle and low frequency part, falling a little from near 1KHz. Due to the structure of the flat plug, the low frequency will leak a little when wearing and listening, making the middle and low frequency sound very full. The frequency response curve of the Astrotec Lyra 6 is different from that of many earphones that pursue a straight frequency response at this stage. In contrast, the Astrotec Lyra 6 will be more durable and have a "taste of old earphones".


Subjective experience:


In terms of subjective experience, we will experience the earphones carefully after the corresponding warm-up process, and invite different types of editors and experimenters to have different matching experiences. Due to the differences in front end, wearing, sound source, taste, brand belief and listening concept, there may be differences between different experiencers. In addition, the experience of experiencers only represents their personal feelings, and does not represent objectivity, absoluteness and impartiality.



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I have been exposed to a few small plugs such as the AM800 of Astrid before, but I don't feel too special. The plug is full of metal and looks good from the outside, but the design of the ear hook is not particularly stable for a girl with slightly smaller ears and longer hair, and it can hook her hair in various ways. There is a snack plug. In addition, it is uncomfortable to lose one of the places where the ear hook is worn for a long time. The first song I heard was Wei Lan's "Ru Shui", which really made me feel amazing. The voice was very transparent and natural. I felt that it was very suitable for listening to female voices. Moreover, the guitar sound was very good. In order to listen to the guitar sound, I cycled several times. But the sound of drums and other sounds is not so good, and there is a feeling that it can not be reached. Then I changed several male voices, and found that there was no surprise of female voices, and the sense of atmosphere was not very good.



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Low frequency: The low frequency performance of Lyra 6 is very excellent. The low frequency performance of Lyra 6 has very good diving. When not wearing a sleeve, the sense of volume is relatively moderate, and the rebound speed is also very clean, which makes it have a very excellent sense of rhythm when listening to popular music. The most valuable thing is that the low frequency will not have any impact on the voice.

intermediate frequency: Lyra 6 has a good mid frequency thickness, which is very obvious when appreciating Eason Chan's works. It can play up the feelings of the voice very well. The voice is very exquisite and listening. When it is paired with ZX1, the voice of the two players complement each other. In short, it is very pleasant, and I like it very much.

High frequency: The high frequency of Lyra 6 is not so dazzling, and its extension is only qualified, at least worthy of its price, which is no wonder, because the overall voice of Lyra 6 is on the lower side, and enjoy Hotel California and Miracle Live in Japan The performance of the guitar is not so good, but it is not that it is not as glamorous as those high-frequency plugs, which has no impact on the overall listening sense. After all, the tuning idea of the plug is the same as that of Toyota Corolla.

Analytical force and separation degree: If the full score is 10 points, Lyra 6's analytical power can get 8 points from me, and the Sennheiser MX985 can get 8.2 points among the flat plugs with similar prices, OMX980 can give 9 points. Lyra 6's analytical power is really good, but it is not so obvious because of its preference for medium and low frequency tuning. When listening to popular music, the separation of voice and accompaniment is very good. The low frequency, which has excellent sense of volume and diving, does not take away the drama that the voice should have, and the division between each utterance of voice is also very good, There is no sense of confusion when appreciating the ensemble of many musical instruments in the works of the Twelve Girls' Orchestra.

Sound field: Thanks to the flat head open design, the sound width and naturalness of Lyra 6 are naturally unmatched by many in ear earphones. In terms of the specific sound field level, Lyra 6's voice is relatively front, and the interpretation is also very close. Other instruments stay in the rear safely. After being fitted with a sponge, the sound field will become slightly smaller.

Front end collocation and ease of deduction: Because I personally like a light voice, if I recommend it, Lyra 6 is suitable for matching with the front end with clean sound and low noise. As for the thrust, Lyra 6 does not take the thrust, and it is easy to produce good sound. For example, ordinary mobile phones such as Samsung Note 3 and HTC One can easily promote, and the hearing is good. It is also good to match with iPod (except Nano).

Potential: The plug of Lyra 6 has good potential. After connecting the portable ear amplifier, you can clearly feel that the distance between the voice and the instrument is obviously extended, the image will be clearer, the analytic power will be significantly increased, the high frequency will be lightened, and the low frequency will dive deeper.

Summary: In fact, I have always had a good impression on the brand of Astrid. My first pair of Astrid earphones is the AX7. Its sweet female voice and somewhat enchanting musical instrument performance impressed me deeply, and the AX7 is also my first pair of movable iron earphones. Yes, the AX7 is not perfect, but it shines with its own light, which is why I like it. As for the Lyra 6, like the AX7, it is a very distinctive headset. Of course, it is not as sophisticated as the MX980, as sharp as the X10, and as dynamic as the C300, Lyra 6 is valuable because it has a very delicate and beautiful voice and other qualities that can well contrast this voice. For those who do not want to invest too much in headphones and front ends, Lyra 6 is definitely worth considering at this price, but for players with high analytical power and high frequency requirements, Lyra 6 should not be your dish. Oh, in terms of price, Lyra 6 on Taobao now sells for 998 yuan, which I personally think is quite appropriate.


Summary:


As one of the few thousand yuan level flat plugs, Astrotec Lyra 6, based on Lyra, has also made minor adjustments in tuning. Astrotec Lyra 6 uses the cavity and ear hook made of metal materials. The exquisite workmanship improves the overall quality and reflects the flagship identity. The most important thing is, of course, to improve the wearing comfort. However, due to the inherent design of the flat head plug, it is also reflected in the above that the Astrotec Lyra 6 is not friendly to female users when wearing it. Of course, it cannot be blamed on Astrotec.

In the objective test, the engineers agree with the frequency response curve of Astrotec Lyra 6. The full medium and low frequency performance and the pursuit of the design direction of hearing tolerance lay a good foundation for the subjective experience. In the subjective experience, both of them gave Astrotec Lyra 6 a high rating, especially in terms of voice. The requirements of Astrotec Lyra 6 for the front end are also very simple. The use of DX100, SONY ZX1, HTC E8, Nubia Z7, etc. can achieve good performance.

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