Important! The sound quality is largely influenced by the source. Whether it's a smartphone, player or sound card. And the recording quality of the composition itself. In my case, the source of Iphone 11, when connected by wire to a PC, is the built-in Realtek ALC S1200A on ASUS TUF GAMING H470-PRO (108 dB signal to noise ratio, shielded audio part with a good harness). Music - , and archive of records without compression. Therefore, before evaluating headphones, evaluate what and what you play. In the reviews I saw such features: 1. Reviews when the sound over the wire is worse than when connected via Bluetooth. The case when a low-quality DAC in a smartphone generates an appropriate signal over the wire. When connected wirelessly, the data is processed by the processor of the headphones themselves, so the result will be better. 2. Feedback when the inside of the headphones rests on the ear. The photo shows how it looks (the protrusion can be seen if you press the fabric with your finger). Personally, I don’t have such a problem, I don’t even know how to touch this part with my ear. But the anatomy of people is different, you should definitely try on headphones before buying. As for the quality of SONY, the first time I encountered strangeness when contacting an authorized (!) Service center in Hong Kong (!) When the SONY XA smartphone failed. They could not identify the cause (which the smartphone was identified and repaired after a couple of hours in a regular service - a power controller). They offered to send it to Hong Kong for diagnostics (it seems that they didn’t have services anywhere else). Now there are interesting XPERIAs on sale (SONY always pays due attention to the sound in smartphones), to which you can pair headphones with the LDAC codec (for example, the Sony WH-1000XM series). However, with the current level of product and service quality, it is unreasonable and undesirable to take such risks.
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