Among three earplugs, 5.2 turned out to be the easiest to push by M1L. The volume for 1.2 is about 75%, 2.3 is about 90% or more, and 5.2 only needs about 65%. It is the best phone-driven earplug I have ever heard, demonstrating exceptional quality and musicality. Whether it is vocals or instruments, the sound in every frequency range is consistently clean, transparent, full, lively, delicate, and smooth, with a wealth of information. It can immerse you in the music instantly, making every pore feel ecstatic. The high frequencies have some sharpness, but it does not disrupt the listening experience at all. Instead, its high frequencies are splendid, with a shining quality that reminds me of the last time I heard the latest flagship "Pope" floor-standing speaker from the British brand Wilson Benesch with 150W.

Using T1 to drive it, of course the sound is more stable and the resolution is better, but the characteristics are the same. You could say that this is the first pair of earphones priced at RMB10,000 that I truly recognize. I used to think it was unbelievable to sell earphones for RMB10,000, but when you think about it from a different perspective, using a smartphone to drive it at 1.2 allows you to experience the taste of bookshelf speakers, while using 5.2 allows you to touch the taste of HI-END floor-standing speakers. So, the pricing of RMB10,000 may be quite "favorable" (^o^) Consider saving the money for a thousand-dollar player and investing in better earphones instead.

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