Why not horns?

Mapman: You may want to consider the LaScalas. It is my understanding that the bass is horn loaded via the cabinet construction and unlike the k-horns does not require a corner to provide the horn. It does not go very low however - I believe around 55 Hz. My reason for the suggestion is that this way you stay with a full horn loaded system. The Heresey bass, I believe, is not horn loaded. This is not to cast aspersions on the Heresey or Cornwall but just a rather purist approach, i.e., if you want to try horns try a complete horn system. Of course there is the practical side in that you have ready access to the Heresey. If you do opt for any of the Klipsch please keep us posted as to your assessment - pros and cons.

Mapman: The bass extension of the k-horn depends on the length of the horn - which is the lenght of the corner in each direction. I believe that to get the full extension you need corners that extend 48 inches in each horizontal direction. False corners work just fine so long as there is a good connection to the speaker cabinet.

basically, the wall (for the k-horns) is part of the bass horn, so not having it flush ends the lenngth of the horn at the point where it is no longer effectively one piece. It is no differentin principle than the horn that loads the midrange, but the wavelengths of the respective frequencies produced are different hence the different lengths of the horns needed to load the respective low ends of the particular band - breaking the one solid piece that forms the bass horn is no different than if you sawed the midrange horn in half and set the two pieces next to each other - the horn loading the midrange driver would not consist of the two halves now but only the half that was continuous from the driver.