The Bogen Models SCW20 and SCW35 are heavyduty sound columns designed for sound reinforcement in churches, theaters, auditoriums, and similar installations where it is necessary to cover a large area with a minimum number of speakers.The sound column consists of a vertical array of speakers in a specially-designed rectangular enclosure, and provides a more effective length of throw than conventional speakers, as well as a highly directional sound dispersion pattern for reduced reflection from the floor and ceiling of the hall. The precisely controlled dispersion pattern of these sound columns makes possible a maximum of uniformity in coverage of the desired area with minimum sound projected into undesired areas. The sound columns are constructed of sturdy particle board, acoustically lined and finished in a simulated oiled walnut.The removable rear panel (for access to the cone speakers) contains a polarized screwterminal strip and mounting plate for line-matching transformers. Precisely controlled sound projection Directional characteristics reduce feedback Uniform sound level throughout area covered Clarity and intelligibility for speech reproduction Lower power requirements than conventional speakers Fast and simple installation