The first group of female voices: No You (mariah.carey), Dating (Hui Zhou), Not that I don't understand (Fish Leong), Nanhai Girl (Faye Wong), Opportunity (Cai Qin), Moon Full West Building (thomas lee).
The second group of male voices: Tears Jacky Cheung (04 Hongkong Concert), Blue and White Porcelain Jay Chou, Intuition Jeff Chang Shin-Che Shen Che, Boat Peng, Star vista and Paradise Tengger singer singers.
The third rock group: Dead Fatherum 4 1, Reise, Reise rammstein, Beyond without handling.
The fourth group, newage, is light music: the Grand Canyon at dusk, sacrifices, Bran's poetry chorus, Schindler's list of wild cranes in the idle clouds, and autumn daydreams.
Opera Group 5: Cat cd2, No.7 Carmen
The sixth group of classical strings: Liang Zhu O Holinig (cello), Devil's Tremolo, Four Seasons Matt Violin.
The seventh group of classical symphonies: Beethoven's first symphony, karajan's "Golden Call"
The styles and test contents of the above tracks are comprehensive enough, and they are all in WAV, FLAC and APE lossless formats (individual 320K MP3), so the sound source should not be a problem. There are so many tracks that it is impossible to separate them separately and subtly. The following discussions are all grouped. Try to make your remarks clear, stating that the following remarks are not the result of too much ideological struggle and repeated speculation. Try to be objective in a purely subjective speech. I haven't studied musical instruments, and I haven't recited many descriptive words. Please correct me and make suggestions on my shortcomings.
F20 is the hard disk of Toshiba Corporation of Japan in 2005. Hard disk drive, like MD, has a subtle playing circuit different from flash disk, so many people get the inequality: PC > CD Walkman > MD > hard disk MP3 > flash disk MP3. Of course, this is a general rule, and Sony S706 and IADUIO D2 surpass some hard drives in overall sound quality. F20' s voice belongs to atypical Japanese voice, and its overall style is cold and warm, such as sunshine in winter, with bright timbre, complete and horizontal sound field, certain depth and height, and moderate voice thickness. Compared with the rich and mellow voice of iriver H 120, the voice of F20 is much thinner, and it is dyed in the middle and high frequency bands, which is very irritating. Its advantages are female voice and strings, and listening to rock has a metallic taste. Style comparison monitoring and HIFI, a very comprehensive machine, have no obvious weaknesses. If Sony S706 hits 80, the sound quality of F20 is 95. The sound effect of F20 is the initial setting of ROCKBOX (the power of F20 becomes much stronger after RB brushing).
PK2 VS A8
The first group of female voices: PK2 performed well, and the middle and high frequency female voices had a great sense of hearing, but the quality of listening carefully should still be below A8. Fish's "I don't understand" is not incomprehensible, but the voice is straightforward and sweet and full of falsetto, and A8 is also here. PK2' s analysis of the score with weak background at the beginning of the song is not as good as A8' s (E4G is better than before), although A8' s voice is relatively backward. When listening to Nanhai Girl, the two plugs failed to show the artistic conception of "beach, sunset glow, a beautiful and ignorant girl". The A8 is a little cold, and PK2 can't tell where it is missing, but it has a slight gap with A8, which is famous for its ethereal nature. The sound line of A8 is more beautiful than that of PK2, and the feel is better than that of PK2, but this feeling will become a disadvantage in noisy environment. Both A8 and PK2 are suitable for listening quietly in the middle of the night, which is obviously more suitable for A8 with a deep voice. The range of PK2 is very clean, but again, it is not as clean as A8. On the whole, A8 is slightly better than PK2 in listening to female voices, PK2 is stronger in atmosphere, and A8 is better than implicit expressive force. No matter in the performance of pop female voice or BT female voice with fever, the sound field and positioning performance of PK2 and A8 are almost perfect. One ear can't tell the difference. The positioning of A8 is more accurate than that of PK2, and the sound field of PK2 is slightly larger and the sound is slightly open, but the outline is not as clear as A8 after opening. In terms of performance score, A8 is more delicate and sharp (OMX90 is stronger, but it belongs to the dyeing style, not as good as A8), and PK2 is softer.
The second group of male voices: A8' s performance is somewhat discounted here, and its voice is backward. Coupled with the analytical voice of F20 itself, A8' s male voice lacks appeal. Jacky Cheung's vocal performance is obviously insufficient (MX90 is the best). The analysis of human voice is better than PK2, especially when listening to Jay's Chinese style, the change of Jay's voice and singing style is easy to capture. And PK2 wins in the overall atmosphere. In song intuition, A8 performed well, full of yearning and cold taste. The change of vocal position is also clearly explained. PK2 is also very good, but it is weaker than A8 (hehe, it is still an old saying). "Song of the Boat", the performance of the two plugs on the scene is excellent, including the position of the sound of water flow and the depth of Xiao Sheng, but the performance of Zhao Peng's subwoofer is not satisfactory, PK2 is slightly better.
Vocal summary: Suitable for middle and high frequency female or male voices, A8 is clean and sharp, PK2 is soft and lasting, and the voice is very similar. A8 performs well in the high-frequency extension of human voice, but it has some defects in the rich voice, magnetic voice and deep voice of Cai Qin, Zhao Peng and other middle-aged and elderly people. The overall quality of A8 is better, and the listening sense is still comfortable with PK2.
The third group of rock: the charm of rock lies in the abnormal and fast low frequency, strong strength, overflowing metallic breath and rough voice. Here A8 and PK2 have no advantages over other plugs at low frequencies. But strangely, A8 can handle these three rock songs, but the atmosphere is very poor, and there is almost no sense of encirclement-this is also good, and it feels like an open-air concert. Strictly speaking, A8 can cope with the transient and dynamic performance of sound, positioning and sound field. When expressing human voice, A8 is rougher than PK2, which is particularly evident in the word "precision". PK2 is more rounded and has a strong sense of atmosphere. A8 is clean, which has advantages in expressing metallic taste. However, due to the general frequency, A8 and PK2 can only be said to be quite satisfactory in rock and roll, A8 is very smooth, while PK2 is a bit out of place. After all, the price of A8 is there-a very popular saying. On the jazz drum, PK2 is more flavorful, and A8 is more rebellious.
The fourth group, NEWAGE, light music: Here the real advantages of A8 and PK2 begin to appear, which is where A8 and PK2 open the gap. After listening to the sacrifice, A8 felt that the sound changed quickly, while PK2 didn't change instantaneously, which was a little delayed and sluggish. Why do many people say that A8 is powerful at such a common low frequency? However, in the exceptionally low-frequency track "Wild Crane in the Clouds", the performances of PK2 and A8 are particularly dull except for sound stage. Generally speaking, the gap between PK2 and A8 is dynamic, the integrity of sound field, the thoroughness of sound and the extension of extremely high frequency.
There are many abnormal low frequency, abnormal sound field and abnormal dynamic test tracks in this group. In terms of quality, A8 began to pull away from PK2. However, the low frequencies of A8 and PK2 have maintained a certain quality, elasticity and texture under the urging of these songs. However, due to the lack of diving and sense of quantity, some tracks are not shocking enough. The momentum of PK2 is stronger than that of A8, which may be the reason for the higher voice.
The fifth group of operas: the restoring ability of the stage, PK2 is inferior to A8. In an opera excerpt from Carmen and the Cat, A8 restores a relatively complete stage, which is close to a circle, while PK2 should be an ellipse, about 120 degrees, just like an evaluation said. A8 is not as good as PK2 in expressing Bel Canto. However, A8' s sense of night is particularly prominent on the opera stage, and PK2 is a little impetuous, with a sense of fine gauze, which makes people unable to quietly move the story. Here, the advantages and disadvantages of A8 coexist, and the advantages of PK2 can hardly be found from A8 except that the sound is rounder and softer than A8.
String Group 6: This is my favorite type of music. I think cello and violin are the most wonderful instruments in the universe. PK2 always feels that violin playing has many shortcomings. For example, the pine fragrance is almost inaudible (the violin is weak), which should be the result of the softening of the voice. Listening to the devil's trill, the overall sound is good, but there is no explosive force in expressing the strongest sound of the violin, which should be the bottleneck of the unit. But to be honest, this performance is almost rare in 500 yuan's plug. However, A8 is much better in clarity and sharpness of high-frequency extended sound, and the explosive power of violin is also flawed. But A8 has won a lot in showing the tearing and heaviness of violin and cello.
When listening to Paganini's devil's vibrato, I immediately distinguish the quality of two pairs of earplugs. Obviously A8 is more atmospheric, more refined and more expressive. In the four seasons, a storm A8 shows a "big pig falling on a jade plate", which is well analyzed, and the change and contrast of strength are very clear, while PK2 is more likely to show momentum, and the scene of heavy rain is better than A8.
The performance of symphony orchestra PK2 under clarinet instrument is amazing and powerful. The sound location, separation, width and shape of the sound field are good, with a certain height. The sound of the instrument is basically correct. In Beethoven's first symphony, A8' s transient and positioning are particularly prominent, and its analytical power is far better than PK2. The first symphony area of A8 is particularly outstanding, with cool and handsome style, rich high-frequency overtones and night sky range. It's like a classic stunner in earplugs. The classicality of A8 has a noble temperament, which PK2 can't achieve.
Postscript: PK2 belongs to civilian version A8, soft version A8 and flat sound field A8(A8 also belongs to flat sound field under large headphones). There is a gap in quality, but it is definitely not as big as 1200 yuan (A8 1480 yuan, PK2 280 yuan, the new PK2 has been sold to 380 yuan). Immersed in the worship of A8 and the surprise of PK2.
This text was written a long time ago, but I couldn't upload it, and I didn't leave a bottom. It's frustrating that I have to rewrite everything. Clear up the overall situation. When the school takes a few pictures with the Volkswagen Canon G9 ... it depends on the free time and mood.
I only did half of it, and Senhai Sanjie and others are free. I'll write when I'm in a good mood ... I went to bed and finally said A8 90, PK2 80.