The high frequency section of EVC loudspeakers comprises a single 1.25" pure titanium dome compression driver directly coupled to a rotatable constant directivity waveguide that delivers uniform pattern control and smooth, linear response. The low frequency section employs a high-output woofer that was developed using state-of-the-art, computer aided optimization to provide low distortion, high efficiency, and maximum intelligibility at high sound pressure levels. The passive crossover implements a modified fourth-order design with slopes of 24 dB per octave for smooth off axis response and improved definition through the critical vocal range.