I just picked up a used DX320 Edition X. I have owned the RS8 previously. My genres of music are mostly string quartet and chamber music. The RS8 is an excellent DAP with good all around smooth sound. I do prefer the DX320 due to the sound being on par with the RS8 but also the optional amp modules providing the sensation of getting several DAPS in one. The UI and screen of the DX320 is excellent also. Bluetooth and WIFI connectivity have no issues, It is my end game (until a replacement for the DX320 comes out)