This converter I actually had to connect my LG TV 32LA6678 my powered speakers Edifier Luna Eclipse (only headphone jack) buy. The speaker volume but not enough for me, it was too little. With the converter FiiO D03K Taishan, I ordered then, I am satisfied with the volume. Why do I still 5 points: I have my little Sony Bravia TV is now connected to the kitchen via the optical cable and exactly this converter my Logitech Z4, and everything sounds better immediately as via the headphone output beforehand. The volume depends on properly. Maybe just does not fit any device at any converter?