The speakers are too close to the wall. How long will it take for you folks to realize that the combination of equipment and the way you push minute voltage fluctuations through wire and fuses pales in comparison to the importance of how your ears are pressurized by the speakers in the listening environment, and the resultant effect not only on sound quality, but also musical involvement? Opera lover - your speakers are improperly placed and positioned, plain and simple - moving them to where they belong, mot just where they fit is the solution to your problem. MySpeakerSetup.com - read and learn- then talk to me!