Going with the recommendation not to change any components just yet, if you can, try to move your entire system to another room. If that is not possible, try to move your speakers to an entirely different wall in your room. I have done this over the years and am amazed at how differently a system sounds in different rooms. Many have said here and elsewhere that the room is the biggest determiner. If that does not convince you, I have also tried the same speakers in the same position with very different systems (vintage tube equipment vs. modern solid state) and the difference is NOT overwhelming at all between these components, albeit good ones. Changing electronics can make a difference indeed, but if your room is to blame, changing electronics can really hurt you in the wallet!