b'TECHNICAL DATA|TYPES OF SYSTEM|APPLICATIONS 71ApplicationsAdastra products cover environments and applications with a focus on clear and efficient sound coverage.Public Address SystemsA public address system is a means of sound reinforcement for relating speech and audible information to a group of people. The setup may vary from a single portable amplifier in a small room to an intricate multi-room zoned systemwith multiple speaker arrays. Since each public address venue will have its own characteristics, there are many different speaker typesand installation methods depending upon the architecture of the building, ambient noise levels and coverage requirements. The key demands from any public speaker are efficient speech delivery and wide area coverage. Typical venues include: schools/universities, medical centres, market halls, airports, train stations and places of worship.Background Music SystemsGenerally, background music is a term used for pleasant and unobtrusive playback of recorded material.Many public buildings benefit from background music systems to help create an ambience or mood for their service users. These systems may be tailored to each building and its function in much the same way as with public address systems. The main difference is that full range audio quality isimperative with background music in order to make it listenable and inoffensive, which is not necessarily a key requirement for basic speech delivery.Applications include: bars, retail outlets, restaurants, galleries, museums and leisure centres.Outdoor and weatherproof systemsSome public address and background music components are designed for use in outdoor or damp environments.The materials used and construction methods help tomake them weather resistant and able to withstandoutdoor conditions. The main factors to be taken into account when planning outdoor or weatherproof systems are safety and durability of the electrical components to be used within the proposed environment. This includes any of the equipment exposed to the potentially damaging elements including speakers, transformers, cabling and connectors. Mixers and amplifiers are more often sited in an indoor environment.Typical environments include: patios, auction sites, arenas, theme parks, marinas and swimming pools.'