I saw the topic and thought hey, I'm doing that. But when I read your post I realized that I'm at the leaning against the window stage so would be of no help. My stereo room is in total disarray so when I bought some new to me speakers I put them in the living room 2 channel TV system just to hear them, but something was off. So I grabbed an absorber panel from the stereo room and leaned it against the sliding glass door, problem solved. Hope you find a solution.