The ESR range has been developed for a particular niche in the market where an all in one box is needed to give clear detailed reproduction over a wide area. The ESR106, 212, and 215 are three way full range enclosures with wide dispersion characteristics. They can be used vertically for theatre, church or cultural centre type installations, or in the case of ESR212 and 215 horizontally mounted to give excellent coverage over a tiered seating area for stadium or grandstand type applications.