The highly reverberant “music acoustics” design for Philharmonic Hall, Lincoln Center, New York, necessitated a carefully engineered speech‐reinforcement system to assure satisfactory intelligibility for speech events. Two alternate and competitive “central” loudspeaker systems, having similar directional characteristics, were recommended, one employing direct‐expansion radial high‐frequency horns, and the other employing multicellular high‐frequency horns. Also, alternate constructions were allowed for the low‐frequency horns, the choice depending upon the visual requirements of the architect. The sound‐reflecting panels in the hall interfere somewhat with the performance of the sound system at low frequencies. However, the system has met its design goals. Frequency‐response and word‐articulation tests are presented.