The final step is to define the exact equipment needed and evaluate its cost. Loudspeaker zones are defined by the property owner or project manager. They are related to the venue's architecture and required functions. Each space is treated individually to determine the required loudspeakers. This definition must consider whether they are part of an evacuation plan.
Loudspeaker types are determined based on the acoustic, mechanical, and installation needs of each space to be sound-equipped, in accordance with the property's needs for both economic and aesthetic reasons. Based on this, the number of loudspeakers, their location, and the assigned power are calculated, depending on the specific acoustic conditions.
The control equipment consists of music sources, microphone desks, and the remaining features required in the performance definition phase (pre-recorded messages, telephone access, etc.). It typically incorporates standard, modular, or Class D power amplifiers to reduce space, weight, and consumption. If the system is centralized, this equipment is housed in standard 19" racks with standardized heights (for example, 12, 27, or 43 u, where 1 u = 44 mm), with the necessary accessories for proper system operation: electrical protections, ventilation, etc.
Finally, the system design will include all the mechanical and electrical elements necessary for its operation, such as speaker mounting elements, brackets, connectors, adapters, power supplies, etc.
The wiring and connection of the equipment must follow the instructions in the equipment instructions, comply with the manufacturer's specifications and current regulations, and must not oversize the cable sections to allow for possible expansions.
