This version of Bluetooth 5.1 communication technology, note that this version is an upgraded version, the decoding is not the general PCM1794A, but the upgraded version of es9028k2m, which has twice the decoding accuracy of es9018 and twice higher than that of pcm5102a. In addition, the CPU intelligent optimization coprocessor makes the sound quality better. There is also the new ak4493 scheme, which has excellent voice and full low frequency However, it can be compared with us $1000 digital turntable and CD player
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