Feeling the rhythm of being brainwashed by white teeth recently! After hearing the white teeth's 440, 880, and 990, we finally ushered in the DT1770PRO of Tesla's generation. It was a great satisfaction for the soul! The first impression of hand is that...it's really tall, and nothing else, the black matt leather pattern on the surface of the earmuffs, plus the typeface specular highlights in the middle, is much better than the previous 440. 880, 990 is a big one. Even the small and very small 250 Euro mark and "Made in Germany" are made in the same process, with sharp edges and showing the standard German craftsmanship. However, in order to wait for this big guy, I am also very hard to fight, carrying such a bundle of "things" transmitted to the city subway, the return rate is not generally high. Even the storage box that comes with the headset is so huge that I want to say ... ... Can you tell me about your family's cat and dog, this old hair really hinder the installation of B! It was also the first time I had seen a pair of ear pads that I was able to see. It wasn't just to match or satisfy our tactile experience, but there was a real difference in the sense of hearing, which will be mentioned later. As a listening and positioning earphone, the spring wire and 3.5 to 6.25 plugs are also standard equipment, and there is also an ordinary long line, but I do not use the machine, so basically do not need to directly stay in the leather storage bag storage box. The 1770 uses a professional device with a 3-pin pin, so unless it is a custom cable, it's still like me to use the original line honestly. However, the plug itself has a fixed buckle, and the plug is smooth and clear, professional is indeed not the same. In fact, the shape of the 1770's earmuffs is in line with the previous few white teeth earphones, but the earmuffs shell and the connecting parts of the two ends of the rotating shaft are changed to full metal, so the sense of weight is more full, and finally I feel the neck must be broken. Painful (really heavy!) In addition, because of the closed relationship, the two earmuffs each have a circular air conditioning hole for balancing and controlling the pressure of the chamber when the unit vibrates. The head beam is also more spacious and plump, and the upper suture and the hot pressed white tooth logo are also more elaborate. I didn't directly match it, but the size of the first beam of 1770 seems to be smaller than before, so even if the head beam is stretched to 1/2 length, it will still seriously damage the hairstyle. 1770 is indeed a chuck, is more serious than 880, 990, close to the level of 440, but fortunately the quality of the ear cushion is more, so it will not be so painful, but still not suitable for long wear. After simply introducing the appearance part, then it's time to go to metaphysics again! Let's talk about the front-end device, iPod touch (sound) + sonata iDSD (decoding) + buzzing GR-1 (second room), iDSD settings according to the rhythm of old Jia, transferred to the maximum output power (he said will automatically identify as LO ), The rest is handed over to GR-1 for control. In fact, even though the 1770 is a 250-ohm impedance, it is easy to achieve sufficient loudness. However, the sound burr at this time is rough, and the sense of hearing really is not very good. I also tried to push it with Hifiman's Megamini and GR-1, but the sound was too warm and too greasy. I still prefer the straightforward neutral style. The 1770 sound field after putting up will obviously open, and the thickness of the sound will be relatively normal (because I am not sure to push a few). Although 1770 is a listening and positioning, it is not an imaginary neutral straightforwardness, but it is slightly warm and emotional. In terms of quality, it is indeed an increase in one ear, a clear image, and a strong sense of transparency. As for resolving power, the ES9018K2M used by the front-end iDSD is itself focused on analysis, and the 1770 also faithfully reflects the excellent level of detail. In terms of tri-band distribution, 1770 gave me a feeling that the emphasis was on the midrange vocals, with convergence at different levels on both sides, so the sounds seemed to be very condensed. This would be more appealing when listening to some vocal tracks, especially female voices. More recent, it is easier to catch the audience's nerves. The high frequencies are slack but slightly darker, and the extension of very high frequencies is not so much fun, but the advantage is that it is not easy to pronounce teeth, and it is also softer when it is used to represent harmonics of strings such as the violin. The low frequency is shown separately because the 1770's low frequency changes with the choice of ear pads. In the beginning I used the default fluffy ear pads. At this time, the low-frequency feel is moderate. Although the depth is not outstanding, it is more agile. Then I changed it to cortex, perhaps because the smooth surface will increase the low-frequency reflection in the sound cavity, and the sense of volume will increase significantly, but at the same time, it will stick. In fact, I am very tangled, because from the perspective of wearing comfort, cortical ear cushions will be more comfortable, but hearing, too much low-frequency interference in the high-frequency, which is obviously not as good as the balance of the fluffy pad. However, it is worth mentioning that the 1770 has a small triangular notch on the inside of the earmuffs, making the replacement of ear pads a lot easier. Finally talk about the sound field, with closed headphones, the sound field of the 1770 is undoubtedly very good, at least can be used to bully my SHP9500. As for the caverns that many people say, my ear fungus is really inaudible. In the end, let's put a small card of purchase to meet the small size of my value. PS: I listened to the party's next notice. Friends who have borrowed very characteristic, very grass-roots headphones are already on the road, so it's next time! 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Beyerdynamic DT1770 PRO Headset Next Generation Tesla 2.0 Flagship Headphone 250 Ohm Enclosed Standard Reference Sound Quality 4199 Yuan Jingdong Direct Link 
