FiiO Feiao K1 Portable USB Sound Card Disassembly Atlas

Feiao K1 is a very compact USB sound card. It does not have a built-in battery but can be connected to a smart phone as a USB sound card. The external size is only 50x 20.5x 8mm, and the weight is only 11.3g with the clip. The USB chip used in K1 sound card is the SA9023A of BRAVO. We should be very familiar with this chip. A few years ago, it was one of the common chips of desktop external decoders. DAC chips are TI PCM5102, which is common in entry-level sound cards and players. We have evaluated a similar sound card 《IRIVER Aley and Astell & Kern AK10 Portable Smartphone Decoder Evaluation Report[Author:Soomal] , at that time we thought its smaller size might limit its play. Although Feiao K1 has just been listed in China, it is not a new product. K1 has been listed earlier in overseas markets. How does it perform? Soomal will release the evaluation report of this sound card on February 25.