Getting the listening and speaker positions correct is essential before you start throwing money at your system. Best of all, it’s free if you’re willing to make the effort. The best system of doing this and more, is described in great detail in Jim Smith’s Get Better Sound book available at www.getbettersound.com.
If you don’t have crown modeling at your wall/ceiling intersection, this would be a great, cost effective way to reduce slap echo.
We’ll be adding some cost effective products soon.