Speaker distance

+1 @smer319 

@tomcarr, I believe that is the most common convention in manufacturers' documentation; but it surly is counter-intuitive. ;^) 

The XLO CD will get you very close. Room treatments, A mirror, laser and effort will make the final difference.

Is there an echo in here? I already said what’s required is a comprehensive program of the XLO Test CD, room treatments and tweaks. Obviously things change for speaker placement as things progress. At any point in time the track on the XLO CD, all things being equal, can determine the ABSOLUTE BEST locations, whereas other even very good methods can only find local maximums.

Participating in these forums; You begin to realize that some things need to be repeated.

People seem not to read the entire post, still want to hang onto their beliefs, some other mathematical formula ie: Cardas formula, are just plain lazy, keep surfing the forums for answers they want to hear.  Ears and Effort are key.

So, Yes Geoffkait; there is an echo here. Needs to be repeated for many.
 
Like voting in Chicago; Early and often.

Best