However, if the tweeters are merely inletted with the flange flat to the baffle front, probably they will not be in acoustical time with the the B/MR drivers because the B/MR drivers are deeper than the tweeters; mine are that way. Therefore the acoustical center of the B/MR driver is farther away from the listener than the tweeter's acoustical center. Placing the B/MR driver inside decreases that difference. I think I'll place mine that way next time.