11. What is the decoding ability of K7 BT?

USB decoding up to 384kHz/32bit, DSD256

Coaxial supports up to 192kHz/24bit, does not support DSD64

Fiber supports up to 96kHz/24bit


K7 BT Bluetooth receiving code supports AAC/SBC/APTX/APTX-LL/APTX-HD/LDAC/Atpx-Adaptive

(Atpx-Adaptive is not checked and enabled by default in the APP, and needs to be turned on through the FiiO Control APP)


Why can the USB mode sampling rate only support up to 384K/DSD256?

During the debugging process, we found that when decoding some DSD512 and songs with a sampling rate above 768k, there will be some noise. We have tried many times to solve this problem, but we can't completely solve it. Due to the quality control requirements of our company, and there are not many songs with sampling rates above DSD512 and 768k on the market, we finally decided not to support sampling rates above DSD512 and 768k.