EXCLUSIVE COENTRANT DESIGN (U.S. Pat. 5,526,456) - Provides true point source performance with outstanding resolution and tonal clarity.

CHOICE OF VERTICAL COVERAGE PATTERNS - choose between symmetrical 60° and 90° or asymmetrical 75° vertical coverage.

TIGHTLY CONTROLLED BROADBAND COVERAGE - CoEntrant Waveguide Technology provides wide band control with constant "Q" through crossover.

TRAP "TRUE ARRAY PRINCIPLE" DESIGN - assures coincident acoustic center alignment and reduces comb filtering in tight packed arrays.