"We passed all the skills to it" - this sentence is a small hot spot in the earphone circle recently. The name of "zombie" is also repeatedly mentioned. Everyone in front of the screen may be confused. Which one? what?
ECCI is a well-known portable amp manufacturer in China. It has been famous in the earphone circle for several years. It is not a "zombie". In 2008, it was widely concerned because of a PR1. The later PR200MKII is also a popular domestic earplug. The price below 300 yuan is very competitive.
However, in addition to the PR200MKII, other models that look like zombies are not concerned. At least the authors around me don't know much about it. Perhaps it is based on this relatively embarrassing situation. It is difficult to support the solo. In 2013, the zombies introduced the model number. The PR3002 earplug product is positioned as the "zombie" flagship.
As the flagship of the zombie earplugs, the PR3002 is priced at only 368 yuan, which is related to the positioning of its brand, and will not be explained here. Many people think that the PR3002's package is too simple, the carton is a carrying case, and the carrying case is not very rich: one earplug, one clip, three pairs of earmuffs of different sizes, warranty card, in addition to this Nothing else. However, the author has no opinion on these, for a main sound earplugs, your box is almost OK! Does anyone still have time to enjoy the box after using the earplugs? 
PR3002's hard carrying case is very fine. Compared with a few years ago, the domestic earphone carrying case has not improved greatly. If you are a person who destroys the earphone wire, I suggest you use the carrying case! 
The shape and color scheme of the PR3002 continues the zombie's consistent style. The aluminum alloy cutting cavity, black paint and red edge are unique. 
The work of PR3002 continues the exquisite craftsmanship, and the details are polished.
Speaking of the topic of workmanship, in recent years, the quality and workmanship of domestic headphones have already got rid of the shadow of the cottage, and there is no problem in catching the Premier League. After all, most of the headphones in the world are Made in china.
The author found some problems in the process of using this earplug, the following is in order for everyone to come together: 
Question 1: This earplug is really difficult to distinguish the left and right channels! The ear handles are so thin, and the logo of the left and right channels is printed on the top. The author said that the pressure of 400 degrees of myopia is very large. Is this one millimeter?
The author suggests: It is a good choice to change the red circle at the end of the left unit to blue.
The filter of PR3002 is a big point of this earplug. If you look closely, there is no flaw. Even earplugs with a price of several thousand yuan are rare and worthy of praise. 
The PR3002's wire design is unique, because the author is the first to contact the zombie's earplug products, not very well understood, it seems that this unique line setting is a major feature.
Question 2: The wire sheath of PR3002 has a certain damping effect, which is not slippery, resulting in the effect of the stethoscope and needs to be improved.
Question 3: In order to solve the effect of the stethoscope, the zombie has a wire gripper, but the tensioner is weak and extremely easy to fall off during walking.
L-type plug of PR3002 
Simple accessories 
Use the AK100 to push the PR3002, the volume needs to be adjusted to 50 or more in order to open the sound normally. If the volume is insufficient, the vocal sound will be far away. A song by Yu Ting's "My Songs" will have a very good taste. The slight and light graininess is very suitable for Qu Yuting's voice. The high-frequency extension is general, but the tooth control. Reasonable, basically negligible, good control.
In Dawn's "Dawn of the Late Autumn", the low frequency performance of PR3002 is remarkable, the drum point is clear, the dive is relaxed, and the different strengths of the drum are in place. The saxophone's voice is slightly turbid, occasionally a bit harsh and high. The resolution of the frequency is significantly weaker than the low frequency resolution. The vocal sense of distance is moderate, the articulation is clear, and occasional tooth prints occur.
Summary: In summary, PR3002 embodies relatively good low frequency and medium frequency vocals under AK100. The low frequency dive depth is not deep and flexible, which is very good in listening to fast-paced ACG music. Very tasteful, belonging to the type of boxing and flesh.
The PR3002 under C4 has become another flavor. The same song, "My Songs", has been significantly improved in the performance of the piano, and the sound field is more natural, but the extension of the high frequency is not much changed. Therefore, it can be said that the PR3002 is an earplug that is biased toward the middle and lower discs. However, although its extension is general, the control is good, and occasionally there will be a glimpse of high frequency performance.
Summary: After the integration, after the C4 is connected, the PR3002 has been slightly improved in the sound field and resolution. It is used to listen to the powerful flavor of the wife's glare, and the sorrow is smothered, but it is used to listen to the soft strings. It seems a bit blunt.
With the men's equipment, the vocals can't be missed. The Eason Chan under the PR3002 has a good voice. Although it is a bit too full, it is a new experience. The separation between vocals and instruments is very clear, and the mellow IF is Without the cover of the string, the analytical power is also expressed, and you can faintly hear the sound of the mouth.
PR3002 embodies a good dynamic effect when the song "Thrilling" is performed, but the sound field feels insufficient, there is a feeling of being squeezed, and the resolution is also somewhat tight.
Through the repeated listening experience of the three players, the author summarizes that the overall sound of the PR3002 is slightly warm, and the low frequency is remarkable. Compared with the low-frequency monsters on the market, there is a gap, but it is stronger than the general product. The taste is very good.
ECCI is a well-known portable amp manufacturer in China. It has been famous in the earphone circle for several years. It is not a "zombie". In 2008, it was widely concerned because of a PR1. The later PR200MKII is also a popular domestic earplug. The price below 300 yuan is very competitive.
However, in addition to the PR200MKII, other models that look like zombies are not concerned. At least the authors around me don't know much about it. Perhaps it is based on this relatively embarrassing situation. It is difficult to support the solo. In 2013, the zombies introduced the model number. The PR3002 earplug product is positioned as the "zombie" flagship.
Speaking of the topic of workmanship, in recent years, the quality and workmanship of domestic headphones have already got rid of the shadow of the cottage, and there is no problem in catching the Premier League. After all, most of the headphones in the world are Made in china.
The author suggests: It is a good choice to change the red circle at the end of the left unit to blue.
Question 2: The wire sheath of PR3002 has a certain damping effect, which is not slippery, resulting in the effect of the stethoscope and needs to be improved.
Question 3: In order to solve the effect of the stethoscope, the zombie has a wire gripper, but the tensioner is weak and extremely easy to fall off during walking.
In Dawn's "Dawn of the Late Autumn", the low frequency performance of PR3002 is remarkable, the drum point is clear, the dive is relaxed, and the different strengths of the drum are in place. The saxophone's voice is slightly turbid, occasionally a bit harsh and high. The resolution of the frequency is significantly weaker than the low frequency resolution. The vocal sense of distance is moderate, the articulation is clear, and occasional tooth prints occur.
Summary: In summary, PR3002 embodies relatively good low frequency and medium frequency vocals under AK100. The low frequency dive depth is not deep and flexible, which is very good in listening to fast-paced ACG music. Very tasteful, belonging to the type of boxing and flesh.
Summary: After the integration, after the C4 is connected, the PR3002 has been slightly improved in the sound field and resolution. It is used to listen to the powerful flavor of the wife's glare, and the sorrow is smothered, but it is used to listen to the soft strings. It seems a bit blunt.
PR3002 embodies a good dynamic effect when the song "Thrilling" is performed, but the sound field feels insufficient, there is a feeling of being squeezed, and the resolution is also somewhat tight.
Through the repeated listening experience of the three players, the author summarizes that the overall sound of the PR3002 is slightly warm, and the low frequency is remarkable. Compared with the low-frequency monsters on the market, there is a gap, but it is stronger than the general product. The taste is very good.
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