Hi sry I now zuteste but this is not the cable but one your speakers or on the device where you connect it. I bought a 5.1 system and now had the problem of having 3 connectors for a slot. That's why I bought 2 This plug and got exactly 3 slots. Sound at all is not lost. And for the price-performance verhätlnies you can not complain. So for me, incomprehensible. I think that you have tested this on a stereo system. For this you need RCA connectors.