If I built a tweeter array using an inexpesive horn/driver combination like the Selenium HM17-25 horn and the DH2000E 1" compression driver I could space the horns no closer than 5.16" center-to-center, because that's the dimension of the horn mouth. Wouldn't I have the equivalent of an array of 1" tweeters placed on a 5.16" ctc spacing, with the attendant comb effect issues? Is there something I don't understand about horns that would mitigate this problem?