I have a Samsung 6300 series LED tv. It connects via optical cable to a Sony 100 series soundbar system. When I play through the soundbar, there is an echo effect that is quite noticeable when other tv's in the house are playing. I "suspect" the Sony has a processor of sorts, that is causing the delay in sound. Samsung makes a 450 series soundbar, which appears to be nothing more than an external speaker system (i.e. no processor). I'm wondering if I spring the $300 for the Samsung bar, my troubles might go away. Since I am only a novice, any suggestions would be gladly accepted.