I had my system dialed in at my last two home listening spaces. My audio system was satisfactory to me. Then, I moved into a small 450 sqft acoustically challenged studio apartment. It is so small that making the bed, opening a window, closing a curtain, adjusting the blinds makes the SE-9 reconfigures itself. My walls are solid concrete walls finished with plaster as well as the ceiling. The floors are 18" ceramic tiles. There is no center listening space. in fact I can sit on the couch and touch my right speaker. It's like the Rolling Stones playing live in a 200 sq ft bar built like a bomb shelter. The music doesn't come from the stage but attacks your senses all around you, It feels like your standing in the front row of the right side stage speaker stack. For the last couple years it has been the Presonus amp and headphones.