FiiO D03K Taishan digital to analog converter with optical Toslink and Coaxial Input | Stero RCA and 3.5mm jacks output (electronics)
Also with me connection between TV (Samsung UE40F6500) and old stereo (Kenwood C1 / M1) with analog inputs. The unit works perfectly and served its purpose. Powered via USB from the TV, no noise, no noise. Whether higher audiophile demands are met, I