TZ406W 4x4" Column Speaker 40W 100V WhiteThe highly efficient TZ Series Column Speakers are compact speakers that deliver excellent sound performance in medium sized venues such as houses of worship, gymnasiums, auditoriums and more. Multiple speaker units are arranged in a vertical array to produce a wide horizontal sound dispersion, yet at the same time, limit the vertical sound dispersion. This greatly minimises reverberation problems in enclosed areas. Product Features Focused sound