Installing a PA system can create challenges when thinking about speaker positioning to get the best effect.  The TZ-30 and TZ-50 Column Speakers, with sound directivity, have features that make them the perfect choice. Fitting into small/medium sized spaces that require high speech intelligibility the weatherproof range of TZ-50 and TZ-30 metal column speakers have attained a rating of IP-55, capable of withstanding weather conditions in outdoor installations.