Theater four π Speakers are designed to be used in average sized rooms, floor standing with their backs against the wall or in corners. When used that way, Theater four π Speakers are very full sounding, with deep rich bass and natural sounding midrange and treble. I'll send plans for the Theater four π right away.Another option you might consider is using the four π cabinet as a bass bin, and use the midhorn, tweeter and crossover from the Theater seven π. I'll send plans for the seven π in case you want to look at that possibility. You can also build the four π's now, and add a midhorn and modify the crossover later. This provides a nice upgrade path.