Being a relative newbie to the whole aftermarket power cord deal, I must say that the results of my recent purchase have been far greater than expected. During my initial auditions the audio improvement was what led me to the purchase, and significant improvement it was. But hey, the improvement on the video is nothing short of incredible! The picture even on digital cable is vastly improved, to the point of utter disbelief. I thought I had a good picture before, but this is amazing.