Two separate loudspeakers, two transformers and two terminals. A + B system. The latest DNH Dual speaker solution for project installations requiring 100% levels of redundancy. 25% cost reductions achieved while maintaining fully independent circuits from a separate speaker, transformer and termination block behind the same grille. In phase connection from separate A + B systems within one loudspeaker. Ideal for those small rooms and spaces. Ideal for use in speech and background music applications. This wall mounted unit is suitable for use in waiting rooms, offices, educational establishments and retail outlets.