I think a lot of people even on this forum leave a lot of their SQ on the table simply by having poor speaker placement. How many plop their speakers in a triangle with the base starting at the mfg recommended distance from the wall? I know I did for quite a while. For a long time I was happy with it as it sounded better than anything I had heard before. After a bit I became unhappy with it however and was thinking equipment change, speaker change. It just didn't sound as good as I thought it should. Luckily, I didn't have a pile of extra money on hand, so I started experimenting with speaker positioning. When I spent the time to use the Sumiko method it paid off in spades. My upper bass and mids blossomed; my imaging and soundstage got exponentially better. Are they in the perfect, ultimate spot now? Maybe, maybe not, but all it cost me is time
