I built my speakers according to North Creek music systems philosophy. All of the enclosure and most of the x-over parts, less the drivers, are 'ala' NCMS. Mr. Short was helpful even though i wasn't building his kit speakers. The result is: breathtaking! I doubt that his speakers would be anything less than that.
http://home.att.net/~dragan_v/home.html
http://home.att.net/~dragan_v/home.html