Hello everyone, I enjoyed myself by buying a samsung plasma but I quickly realized that the audio output to my amp was impossible because there was this optical audio output compatible with my equipment. So I turned to looking after this case that seemed to match my needs (optical output of the TV to my 2 RCA inputs of my amp) At the reception, the installation is extremely simple and fast. The optical audio cable connects the TV to the box. The RCA identified (red and white). It only remains to connect the supplied power adapter and set the selector to the right position (optical or coaxial input if you have this type of connection). Installation takes less than a minute and the result is excellent, my amp, taking the TV relay. As regards the seller, we are dealing with a very high quality service. Shipping is extremely fast and neat and as the price is very well placed, there is no reason to hesitate !!!!!!!!!!